perf(client-runtime): halve server config bootstrap traffic#8367

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Merged
t3dotgg merged 10 commits into from
Sep 1, 2026
Merged

perf(client-runtime): halve server config bootstrap traffic #8367

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16d1bc2
perf(client-runtime): reuse server config subscription
Adamulek123 Aug 26, 2026
675cf82
fix(client-runtime): replay config to every subscriber
Adamulek123 Aug 27, 2026
53584a2
fix(client-runtime): keep config fanout nonblocking
Adamulek123 Aug 27, 2026
3785988
fix(client-runtime): preserve config update events
Adamulek123 Aug 27, 2026
df04931
test(client-runtime): cover config event replay
Adamulek123 Aug 27, 2026
4ea0362
fix(client-runtime): preserve environment theme config events
t3dotgg Sep 1, 2026
0e185b0
refactor(client-runtime): import config projection directly
t3dotgg Sep 1, 2026
491e5ac
fix(client-runtime): export config projection type
t3dotgg Sep 1, 2026
a68af45
docs(client-runtime): explain environment theme lifecycle
t3dotgg Sep 1, 2026
9114a74
fix(client): recover config state after session failure
t3dotgg Sep 1, 2026
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1 change: 1 addition & 0 deletions apps/web/src/cloud/linkEnvironment.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
const session: RpcSession = {
client,
initialConfig: Effect.never,
subscribeServerConfig: (input) => client.subscribeServerConfig(input),
ready: Effect.void,
probe: Effect.void,
closed: Effect.never,
Expand Down
5 changes: 4 additions & 1 deletion apps/web/src/connection/runtime.ts
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Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
| typeof backgroundActivityObserverLayer
| typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
Connection.layerWithOptions({ environmentThemes: true }),
snapshotLoaderLayer,
).pipe(
Layer.provideMerge(
Layer.mergeAll(
runtimeContextLayer,
Expand Down
53 changes: 26 additions & 27 deletions packages/client-runtime/src/connection/layer.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
registryLayer,
RelayEnvironmentDiscovery.layer,
onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
Effect.gen(function* () {
const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
yield* registry.start;
yield* platformSource.registrations.pipe(
Stream.runForEach(registry.reconcilePlatform),
Effect.forkScoped,
);
}).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
const driverLayer = ConnectionDriver.layer.pipe(
Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
);
const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
const connectionServicesLayer = Layer.mergeAll(
registryLayer,
RelayEnvironmentDiscovery.layer,
onboardingLayer,
);
const connectionStartupLayer = Layer.effectDiscard(
Effect.gen(function* () {
const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
yield* registry.start;
yield* platformSource.registrations.pipe(
Stream.runForEach(registry.reconcilePlatform),
Effect.forkScoped,
);
}).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);
return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});
2 changes: 2 additions & 0 deletions packages/client-runtime/src/connection/registry.test.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
Effect.succeed({
client: {} as RpcSession.RpcSession["client"],
initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
subscribeServerConfig: () =>
Stream.die(new Error("Config is not used by registry tests.")),
ready: Effect.void,
probe: Effect.void,
closed: Deferred.await(closed),
Expand Down
1 change: 1 addition & 0 deletions packages/client-runtime/src/connection/supervisor.test.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
Effect.succeed({
client: TEST_RPC_CLIENT,
initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
ready: options?.ready?.(attempt) ?? Effect.void,
probe: options?.probe?.(attempt) ?? Effect.void,
closed: Deferred.await(closed),
Expand Down
1 change: 1 addition & 0 deletions packages/client-runtime/src/operations/commands.test.ts
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Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
const session: RpcSession.RpcSession = {
client,
initialConfig: Effect.never,
subscribeServerConfig: (input) => client.subscribeServerConfig(input),
ready: Effect.void,
probe: Effect.void,
closed: Effect.never,
Expand Down
36 changes: 36 additions & 0 deletions packages/client-runtime/src/rpc/client.test.ts
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Open in desktop
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
DEFAULT_SERVER_SETTINGS,
EnvironmentId,
type RelayClientInstallProgressEvent,
type ServerConfigStreamEvent,
WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
return {
client,
initialConfig: Effect.never,
subscribeServerConfig: (input) => client.subscribeServerConfig(input),
ready: Effect.void,
probe: Effect.void,
closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
Effect.gen(function* () {
const event: ServerConfigStreamEvent = {
version: 1,
type: "settingsUpdated",
payload: { settings: DEFAULT_SERVER_SETTINGS },
};
let duplicateSubscriptions = 0;
const client = {
[WS_METHODS.subscribeServerConfig]: () => {
duplicateSubscriptions += 1;
return Stream.never;
},
} as unknown as WsRpcProtocolClient;
const { activeSession, supervisor } = yield* makeHarness();
yield* SubscriptionRef.set(
activeSession,
Option.some({
...session(client),
subscribeServerConfig: () => Stream.succeed(event),
}),
);

const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
Stream.runHead,
Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
);

expect(received).toEqual(Option.some(event));
expect(duplicateSubscriptions).toBe(0);
}),
);

it.effect("observes unary requests until they complete", () =>
Effect.gen(function* () {
const observations: string[] = [];
Expand Down
6 changes: 5 additions & 1 deletion packages/client-runtime/src/rpc/client.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
Option.match({
onNone: () => Stream.empty,
onSome: (session) => {
const method = session.client[tag] as (
const method = (
tag === WS_METHODS.subscribeServerConfig
? session.subscribeServerConfig
: session.client[tag]
) as (
input: EnvironmentRpcInput<TTag>,
) => Stream.Stream<
EnvironmentRpcStreamValue<TTag>,
Expand Down
Loading
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
perf(client-runtime): halve server config bootstrap traffic#8367

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Sign in
to your account

 Merged

t3dotgg
merged 10 commits into

from

Sep 1, 2026
 Merged


perf(client-runtime): halve server config bootstrap traffic
#8367
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Select commit
Hold shift + click to select a range
16d1bc2

perf(client-runtime): reuse server config subscription


Adamulek123 Aug 26, 2026
675cf82

fix(client-runtime): replay config to every subscriber


Adamulek123 Aug 27, 2026
53584a2

fix(client-runtime): keep config fanout nonblocking


Adamulek123 Aug 27, 2026
3785988

fix(client-runtime): preserve config update events


Adamulek123 Aug 27, 2026
df04931

test(client-runtime): cover config event replay


Adamulek123 Aug 27, 2026
4ea0362

fix(client-runtime): preserve environment theme config events


t3dotgg Sep 1, 2026
0e185b0

refactor(client-runtime): import config projection directly


t3dotgg Sep 1, 2026
491e5ac

fix(client-runtime): export config projection type


t3dotgg Sep 1, 2026
a68af45

docs(client-runtime): explain environment theme lifecycle


t3dotgg Sep 1, 2026
9114a74

fix(client): recover config state after session failure


t3dotgg Sep 1, 2026

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1 change: 1 addition & 0 deletions
apps/web/src/cloud/linkEnvironment.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
 const session: RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

5 changes: 4 additions & 1 deletion
apps/web/src/connection/runtime.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
 | typeof backgroundActivityObserverLayer
 | typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
 Connection.layerWithOptions({ environmentThemes: true }),
 snapshotLoaderLayer,
).pipe(
 Layer.provideMerge(
 Layer.mergeAll(
 runtimeContextLayer,
Expand Down

53 changes: 26 additions & 27 deletions
packages/client-runtime/src/connection/layer.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
 Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
 const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
 );
 const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
 const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
 const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
 );
 const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
 );
 return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});

2 changes: 2 additions & 0 deletions
packages/client-runtime/src/connection/registry.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
 Effect.succeed({
 client: {} as RpcSession.RpcSession["client"],
 initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
 subscribeServerConfig: () =>
 Stream.die(new Error("Config is not used by registry tests.")),
 ready: Effect.void,
 probe: Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/connection/supervisor.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
 Effect.succeed({
 client: TEST_RPC_CLIENT,
 initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
 subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
 ready: options?.ready?.(attempt) ?? Effect.void,
 probe: options?.probe?.(attempt) ?? Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/operations/commands.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
 const session: RpcSession.RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

36 changes: 36 additions & 0 deletions
packages/client-runtime/src/rpc/client.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
 DEFAULT_SERVER_SETTINGS,
 EnvironmentId,
 type RelayClientInstallProgressEvent,
 type ServerConfigStreamEvent,
 WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
 return {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
 it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
 Effect.gen(function* () {
 const event: ServerConfigStreamEvent = {
 version: 1,
 type: "settingsUpdated",
 payload: { settings: DEFAULT_SERVER_SETTINGS },
 };
 let duplicateSubscriptions = 0;
 const client = {
 [WS_METHODS.subscribeServerConfig]: () => {
 duplicateSubscriptions += 1;
 return Stream.never;
 },
 } as unknown as WsRpcProtocolClient;
 const { activeSession, supervisor } = yield* makeHarness();
 yield* SubscriptionRef.set(
 activeSession,
 Option.some({
 ...session(client),
 subscribeServerConfig: () => Stream.succeed(event),
 }),
 );

 const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
 Stream.runHead,
 Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
 );

 expect(received).toEqual(Option.some(event));
 expect(duplicateSubscriptions).toBe(0);
 }),
 );

 it.effect("observes unary requests until they complete", () =>
 Effect.gen(function* () {
 const observations: string[] = [];
Expand Down

6 changes: 5 additions & 1 deletion
packages/client-runtime/src/rpc/client.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
 Option.match({
 onNone: () => Stream.empty,
 onSome: (session) => {
 const method = session.client[tag] as (
 const method = (
 tag === WS_METHODS.subscribeServerConfig
 ? session.subscribeServerConfig
 : session.client[tag]
 ) as (
 input: EnvironmentRpcInput<TTag>,
 ) => Stream.Stream<
 EnvironmentRpcStreamValue<TTag>,
Expand Down
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Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
perf(client-runtime): halve server config bootstrap traffic#8367

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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Already on GitHub?
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to your account

 Merged

t3dotgg
merged 10 commits into

from

Sep 1, 2026
 Merged


perf(client-runtime): halve server config bootstrap traffic
#8367
Show file tree
Hide file tree
 Changes from all commits
Commits

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10 commits


Select commit
Hold shift + click to select a range
16d1bc2

perf(client-runtime): reuse server config subscription


Adamulek123 Aug 26, 2026
675cf82

fix(client-runtime): replay config to every subscriber


Adamulek123 Aug 27, 2026
53584a2

fix(client-runtime): keep config fanout nonblocking


Adamulek123 Aug 27, 2026
3785988

fix(client-runtime): preserve config update events


Adamulek123 Aug 27, 2026
df04931

test(client-runtime): cover config event replay


Adamulek123 Aug 27, 2026
4ea0362

fix(client-runtime): preserve environment theme config events


t3dotgg Sep 1, 2026
0e185b0

refactor(client-runtime): import config projection directly


t3dotgg Sep 1, 2026
491e5ac

fix(client-runtime): export config projection type


t3dotgg Sep 1, 2026
a68af45

docs(client-runtime): explain environment theme lifecycle


t3dotgg Sep 1, 2026
9114a74

fix(client): recover config state after session failure


t3dotgg Sep 1, 2026

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1 change: 1 addition & 0 deletions
apps/web/src/cloud/linkEnvironment.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
 const session: RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

5 changes: 4 additions & 1 deletion
apps/web/src/connection/runtime.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
 | typeof backgroundActivityObserverLayer
 | typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
 Connection.layerWithOptions({ environmentThemes: true }),
 snapshotLoaderLayer,
).pipe(
 Layer.provideMerge(
 Layer.mergeAll(
 runtimeContextLayer,
Expand Down

53 changes: 26 additions & 27 deletions
packages/client-runtime/src/connection/layer.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
 Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
 const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
 );
 const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
 const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
 const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
 );
 const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
 );
 return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});

2 changes: 2 additions & 0 deletions
packages/client-runtime/src/connection/registry.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
 Effect.succeed({
 client: {} as RpcSession.RpcSession["client"],
 initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
 subscribeServerConfig: () =>
 Stream.die(new Error("Config is not used by registry tests.")),
 ready: Effect.void,
 probe: Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/connection/supervisor.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
 Effect.succeed({
 client: TEST_RPC_CLIENT,
 initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
 subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
 ready: options?.ready?.(attempt) ?? Effect.void,
 probe: options?.probe?.(attempt) ?? Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/operations/commands.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
 const session: RpcSession.RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

36 changes: 36 additions & 0 deletions
packages/client-runtime/src/rpc/client.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
 DEFAULT_SERVER_SETTINGS,
 EnvironmentId,
 type RelayClientInstallProgressEvent,
 type ServerConfigStreamEvent,
 WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
 return {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
 it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
 Effect.gen(function* () {
 const event: ServerConfigStreamEvent = {
 version: 1,
 type: "settingsUpdated",
 payload: { settings: DEFAULT_SERVER_SETTINGS },
 };
 let duplicateSubscriptions = 0;
 const client = {
 [WS_METHODS.subscribeServerConfig]: () => {
 duplicateSubscriptions += 1;
 return Stream.never;
 },
 } as unknown as WsRpcProtocolClient;
 const { activeSession, supervisor } = yield* makeHarness();
 yield* SubscriptionRef.set(
 activeSession,
 Option.some({
 ...session(client),
 subscribeServerConfig: () => Stream.succeed(event),
 }),
 );

 const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
 Stream.runHead,
 Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
 );

 expect(received).toEqual(Option.some(event));
 expect(duplicateSubscriptions).toBe(0);
 }),
 );

 it.effect("observes unary requests until they complete", () =>
 Effect.gen(function* () {
 const observations: string[] = [];
Expand Down

6 changes: 5 additions & 1 deletion
packages/client-runtime/src/rpc/client.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
 Option.match({
 onNone: () => Stream.empty,
 onSome: (session) => {
 const method = session.client[tag] as (
 const method = (
 tag === WS_METHODS.subscribeServerConfig
 ? session.subscribeServerConfig
 : session.client[tag]
 ) as (
 input: EnvironmentRpcInput<TTag>,
 ) => Stream.Stream<
 EnvironmentRpcStreamValue<TTag>,
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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perf(client-runtime): halve server config bootstrap traffic#8367

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 Merged

t3dotgg
merged 10 commits into

from

Sep 1, 2026
 Merged


perf(client-runtime): halve server config bootstrap traffic
#8367
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16d1bc2

perf(client-runtime): reuse server config subscription


Adamulek123 Aug 26, 2026
675cf82

fix(client-runtime): replay config to every subscriber


Adamulek123 Aug 27, 2026
53584a2

fix(client-runtime): keep config fanout nonblocking


Adamulek123 Aug 27, 2026
3785988

fix(client-runtime): preserve config update events


Adamulek123 Aug 27, 2026
df04931

test(client-runtime): cover config event replay


Adamulek123 Aug 27, 2026
4ea0362

fix(client-runtime): preserve environment theme config events


t3dotgg Sep 1, 2026
0e185b0

refactor(client-runtime): import config projection directly


t3dotgg Sep 1, 2026
491e5ac

fix(client-runtime): export config projection type


t3dotgg Sep 1, 2026
a68af45

docs(client-runtime): explain environment theme lifecycle


t3dotgg Sep 1, 2026
9114a74

fix(client): recover config state after session failure


t3dotgg Sep 1, 2026

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1 change: 1 addition & 0 deletions
apps/web/src/cloud/linkEnvironment.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
 const session: RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

5 changes: 4 additions & 1 deletion
apps/web/src/connection/runtime.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
 | typeof backgroundActivityObserverLayer
 | typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
 Connection.layerWithOptions({ environmentThemes: true }),
 snapshotLoaderLayer,
).pipe(
 Layer.provideMerge(
 Layer.mergeAll(
 runtimeContextLayer,
Expand Down

53 changes: 26 additions & 27 deletions
packages/client-runtime/src/connection/layer.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
 Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
 const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
 );
 const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
 const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
 const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
 );
 const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
 );
 return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});

2 changes: 2 additions & 0 deletions
packages/client-runtime/src/connection/registry.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
 Effect.succeed({
 client: {} as RpcSession.RpcSession["client"],
 initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
 subscribeServerConfig: () =>
 Stream.die(new Error("Config is not used by registry tests.")),
 ready: Effect.void,
 probe: Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/connection/supervisor.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
 Effect.succeed({
 client: TEST_RPC_CLIENT,
 initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
 subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
 ready: options?.ready?.(attempt) ?? Effect.void,
 probe: options?.probe?.(attempt) ?? Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/operations/commands.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
 const session: RpcSession.RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

36 changes: 36 additions & 0 deletions
packages/client-runtime/src/rpc/client.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
 DEFAULT_SERVER_SETTINGS,
 EnvironmentId,
 type RelayClientInstallProgressEvent,
 type ServerConfigStreamEvent,
 WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
 return {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
 it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
 Effect.gen(function* () {
 const event: ServerConfigStreamEvent = {
 version: 1,
 type: "settingsUpdated",
 payload: { settings: DEFAULT_SERVER_SETTINGS },
 };
 let duplicateSubscriptions = 0;
 const client = {
 [WS_METHODS.subscribeServerConfig]: () => {
 duplicateSubscriptions += 1;
 return Stream.never;
 },
 } as unknown as WsRpcProtocolClient;
 const { activeSession, supervisor } = yield* makeHarness();
 yield* SubscriptionRef.set(
 activeSession,
 Option.some({
 ...session(client),
 subscribeServerConfig: () => Stream.succeed(event),
 }),
 );

 const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
 Stream.runHead,
 Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
 );

 expect(received).toEqual(Option.some(event));
 expect(duplicateSubscriptions).toBe(0);
 }),
 );

 it.effect("observes unary requests until they complete", () =>
 Effect.gen(function* () {
 const observations: string[] = [];
Expand Down

6 changes: 5 additions & 1 deletion
packages/client-runtime/src/rpc/client.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
 Option.match({
 onNone: () => Stream.empty,
 onSome: (session) => {
 const method = session.client[tag] as (
 const method = (
 tag === WS_METHODS.subscribeServerConfig
 ? session.subscribeServerConfig
 : session.client[tag]
 ) as (
 input: EnvironmentRpcInput<TTag>,
 ) => Stream.Stream<
 EnvironmentRpcStreamValue<TTag>,
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
perf(client-runtime): halve server config bootstrap traffic#8367

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

t3dotgg
merged 10 commits into

from

Sep 1, 2026
 Merged


perf(client-runtime): halve server config bootstrap traffic
#8367
Show file tree
Hide file tree
 Changes from all commits
Commits

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10 commits


Select commit
Hold shift + click to select a range
16d1bc2

perf(client-runtime): reuse server config subscription


Adamulek123 Aug 26, 2026
675cf82

fix(client-runtime): replay config to every subscriber


Adamulek123 Aug 27, 2026
53584a2

fix(client-runtime): keep config fanout nonblocking


Adamulek123 Aug 27, 2026
3785988

fix(client-runtime): preserve config update events


Adamulek123 Aug 27, 2026
df04931

test(client-runtime): cover config event replay


Adamulek123 Aug 27, 2026
4ea0362

fix(client-runtime): preserve environment theme config events


t3dotgg Sep 1, 2026
0e185b0

refactor(client-runtime): import config projection directly


t3dotgg Sep 1, 2026
491e5ac

fix(client-runtime): export config projection type


t3dotgg Sep 1, 2026
a68af45

docs(client-runtime): explain environment theme lifecycle


t3dotgg Sep 1, 2026
9114a74

fix(client): recover config state after session failure


t3dotgg Sep 1, 2026

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1 change: 1 addition & 0 deletions
apps/web/src/cloud/linkEnvironment.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
 const session: RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

5 changes: 4 additions & 1 deletion
apps/web/src/connection/runtime.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
 | typeof backgroundActivityObserverLayer
 | typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
 Connection.layerWithOptions({ environmentThemes: true }),
 snapshotLoaderLayer,
).pipe(
 Layer.provideMerge(
 Layer.mergeAll(
 runtimeContextLayer,
Expand Down

53 changes: 26 additions & 27 deletions
packages/client-runtime/src/connection/layer.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
 Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
 const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
 );
 const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
 const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
 const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
 );
 const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
 );
 return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});

2 changes: 2 additions & 0 deletions
packages/client-runtime/src/connection/registry.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
 Effect.succeed({
 client: {} as RpcSession.RpcSession["client"],
 initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
 subscribeServerConfig: () =>
 Stream.die(new Error("Config is not used by registry tests.")),
 ready: Effect.void,
 probe: Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/connection/supervisor.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
 Effect.succeed({
 client: TEST_RPC_CLIENT,
 initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
 subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
 ready: options?.ready?.(attempt) ?? Effect.void,
 probe: options?.probe?.(attempt) ?? Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/operations/commands.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
 const session: RpcSession.RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

36 changes: 36 additions & 0 deletions
packages/client-runtime/src/rpc/client.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
 DEFAULT_SERVER_SETTINGS,
 EnvironmentId,
 type RelayClientInstallProgressEvent,
 type ServerConfigStreamEvent,
 WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
 return {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
 it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
 Effect.gen(function* () {
 const event: ServerConfigStreamEvent = {
 version: 1,
 type: "settingsUpdated",
 payload: { settings: DEFAULT_SERVER_SETTINGS },
 };
 let duplicateSubscriptions = 0;
 const client = {
 [WS_METHODS.subscribeServerConfig]: () => {
 duplicateSubscriptions += 1;
 return Stream.never;
 },
 } as unknown as WsRpcProtocolClient;
 const { activeSession, supervisor } = yield* makeHarness();
 yield* SubscriptionRef.set(
 activeSession,
 Option.some({
 ...session(client),
 subscribeServerConfig: () => Stream.succeed(event),
 }),
 );

 const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
 Stream.runHead,
 Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
 );

 expect(received).toEqual(Option.some(event));
 expect(duplicateSubscriptions).toBe(0);
 }),
 );

 it.effect("observes unary requests until they complete", () =>
 Effect.gen(function* () {
 const observations: string[] = [];
Expand Down

6 changes: 5 additions & 1 deletion
packages/client-runtime/src/rpc/client.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
 Option.match({
 onNone: () => Stream.empty,
 onSome: (session) => {
 const method = session.client[tag] as (
 const method = (
 tag === WS_METHODS.subscribeServerConfig
 ? session.subscribeServerConfig
 : session.client[tag]
 ) as (
 input: EnvironmentRpcInput<TTag>,
 ) => Stream.Stream<
 EnvironmentRpcStreamValue<TTag>,
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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perf(client-runtime): halve server config bootstrap traffic#8367

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 Merged

t3dotgg
merged 10 commits into

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Sep 1, 2026
 Merged


perf(client-runtime): halve server config bootstrap traffic
#8367
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16d1bc2

perf(client-runtime): reuse server config subscription


Adamulek123 Aug 26, 2026
675cf82

fix(client-runtime): replay config to every subscriber


Adamulek123 Aug 27, 2026
53584a2

fix(client-runtime): keep config fanout nonblocking


Adamulek123 Aug 27, 2026
3785988

fix(client-runtime): preserve config update events


Adamulek123 Aug 27, 2026
df04931

test(client-runtime): cover config event replay


Adamulek123 Aug 27, 2026
4ea0362

fix(client-runtime): preserve environment theme config events


t3dotgg Sep 1, 2026
0e185b0

refactor(client-runtime): import config projection directly


t3dotgg Sep 1, 2026
491e5ac

fix(client-runtime): export config projection type


t3dotgg Sep 1, 2026
a68af45

docs(client-runtime): explain environment theme lifecycle


t3dotgg Sep 1, 2026
9114a74

fix(client): recover config state after session failure


t3dotgg Sep 1, 2026

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1 change: 1 addition & 0 deletions
apps/web/src/cloud/linkEnvironment.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
 const session: RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

5 changes: 4 additions & 1 deletion
apps/web/src/connection/runtime.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
 | typeof backgroundActivityObserverLayer
 | typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
 Connection.layerWithOptions({ environmentThemes: true }),
 snapshotLoaderLayer,
).pipe(
 Layer.provideMerge(
 Layer.mergeAll(
 runtimeContextLayer,
Expand Down

53 changes: 26 additions & 27 deletions
packages/client-runtime/src/connection/layer.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
 Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
 const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
 );
 const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
 const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
 const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
 );
 const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
 );
 return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});

2 changes: 2 additions & 0 deletions
packages/client-runtime/src/connection/registry.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
 Effect.succeed({
 client: {} as RpcSession.RpcSession["client"],
 initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
 subscribeServerConfig: () =>
 Stream.die(new Error("Config is not used by registry tests.")),
 ready: Effect.void,
 probe: Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/connection/supervisor.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
 Effect.succeed({
 client: TEST_RPC_CLIENT,
 initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
 subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
 ready: options?.ready?.(attempt) ?? Effect.void,
 probe: options?.probe?.(attempt) ?? Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/operations/commands.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
 const session: RpcSession.RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

36 changes: 36 additions & 0 deletions
packages/client-runtime/src/rpc/client.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
 DEFAULT_SERVER_SETTINGS,
 EnvironmentId,
 type RelayClientInstallProgressEvent,
 type ServerConfigStreamEvent,
 WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
 return {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
 it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
 Effect.gen(function* () {
 const event: ServerConfigStreamEvent = {
 version: 1,
 type: "settingsUpdated",
 payload: { settings: DEFAULT_SERVER_SETTINGS },
 };
 let duplicateSubscriptions = 0;
 const client = {
 [WS_METHODS.subscribeServerConfig]: () => {
 duplicateSubscriptions += 1;
 return Stream.never;
 },
 } as unknown as WsRpcProtocolClient;
 const { activeSession, supervisor } = yield* makeHarness();
 yield* SubscriptionRef.set(
 activeSession,
 Option.some({
 ...session(client),
 subscribeServerConfig: () => Stream.succeed(event),
 }),
 );

 const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
 Stream.runHead,
 Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
 );

 expect(received).toEqual(Option.some(event));
 expect(duplicateSubscriptions).toBe(0);
 }),
 );

 it.effect("observes unary requests until they complete", () =>
 Effect.gen(function* () {
 const observations: string[] = [];
Expand Down

6 changes: 5 additions & 1 deletion
packages/client-runtime/src/rpc/client.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
 Option.match({
 onNone: () => Stream.empty,
 onSome: (session) => {
 const method = session.client[tag] as (
 const method = (
 tag === WS_METHODS.subscribeServerConfig
 ? session.subscribeServerConfig
 : session.client[tag]
 ) as (
 input: EnvironmentRpcInput<TTag>,
 ) => Stream.Stream<
 EnvironmentRpcStreamValue<TTag>,
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
perf(client-runtime): halve server config bootstrap traffic#8367

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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Already on GitHub?
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to your account

 Merged

t3dotgg
merged 10 commits into

from

Sep 1, 2026
 Merged


perf(client-runtime): halve server config bootstrap traffic
#8367
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16d1bc2

perf(client-runtime): reuse server config subscription


Adamulek123 Aug 26, 2026
675cf82

fix(client-runtime): replay config to every subscriber


Adamulek123 Aug 27, 2026
53584a2

fix(client-runtime): keep config fanout nonblocking


Adamulek123 Aug 27, 2026
3785988

fix(client-runtime): preserve config update events


Adamulek123 Aug 27, 2026
df04931

test(client-runtime): cover config event replay


Adamulek123 Aug 27, 2026
4ea0362

fix(client-runtime): preserve environment theme config events


t3dotgg Sep 1, 2026
0e185b0

refactor(client-runtime): import config projection directly


t3dotgg Sep 1, 2026
491e5ac

fix(client-runtime): export config projection type


t3dotgg Sep 1, 2026
a68af45

docs(client-runtime): explain environment theme lifecycle


t3dotgg Sep 1, 2026
9114a74

fix(client): recover config state after session failure


t3dotgg Sep 1, 2026

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1 change: 1 addition & 0 deletions
apps/web/src/cloud/linkEnvironment.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
 const session: RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

5 changes: 4 additions & 1 deletion
apps/web/src/connection/runtime.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
 | typeof backgroundActivityObserverLayer
 | typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
 Connection.layerWithOptions({ environmentThemes: true }),
 snapshotLoaderLayer,
).pipe(
 Layer.provideMerge(
 Layer.mergeAll(
 runtimeContextLayer,
Expand Down

53 changes: 26 additions & 27 deletions
packages/client-runtime/src/connection/layer.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
 Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
 const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
 );
 const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
 const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
 const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
 );
 const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
 );
 return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});

2 changes: 2 additions & 0 deletions
packages/client-runtime/src/connection/registry.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
 Effect.succeed({
 client: {} as RpcSession.RpcSession["client"],
 initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
 subscribeServerConfig: () =>
 Stream.die(new Error("Config is not used by registry tests.")),
 ready: Effect.void,
 probe: Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/connection/supervisor.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
 Effect.succeed({
 client: TEST_RPC_CLIENT,
 initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
 subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
 ready: options?.ready?.(attempt) ?? Effect.void,
 probe: options?.probe?.(attempt) ?? Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/operations/commands.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
 const session: RpcSession.RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

36 changes: 36 additions & 0 deletions
packages/client-runtime/src/rpc/client.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
 DEFAULT_SERVER_SETTINGS,
 EnvironmentId,
 type RelayClientInstallProgressEvent,
 type ServerConfigStreamEvent,
 WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
 return {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
 it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
 Effect.gen(function* () {
 const event: ServerConfigStreamEvent = {
 version: 1,
 type: "settingsUpdated",
 payload: { settings: DEFAULT_SERVER_SETTINGS },
 };
 let duplicateSubscriptions = 0;
 const client = {
 [WS_METHODS.subscribeServerConfig]: () => {
 duplicateSubscriptions += 1;
 return Stream.never;
 },
 } as unknown as WsRpcProtocolClient;
 const { activeSession, supervisor } = yield* makeHarness();
 yield* SubscriptionRef.set(
 activeSession,
 Option.some({
 ...session(client),
 subscribeServerConfig: () => Stream.succeed(event),
 }),
 );

 const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
 Stream.runHead,
 Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
 );

 expect(received).toEqual(Option.some(event));
 expect(duplicateSubscriptions).toBe(0);
 }),
 );

 it.effect("observes unary requests until they complete", () =>
 Effect.gen(function* () {
 const observations: string[] = [];
Expand Down

6 changes: 5 additions & 1 deletion
packages/client-runtime/src/rpc/client.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
 Option.match({
 onNone: () => Stream.empty,
 onSome: (session) => {
 const method = session.client[tag] as (
 const method = (
 tag === WS_METHODS.subscribeServerConfig
 ? session.subscribeServerConfig
 : session.client[tag]
 ) as (
 input: EnvironmentRpcInput<TTag>,
 ) => Stream.Stream<
 EnvironmentRpcStreamValue<TTag>,
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
perf(client-runtime): halve server config bootstrap traffic#8367

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

t3dotgg
merged 10 commits into

from

Sep 1, 2026
 Merged


perf(client-runtime): halve server config bootstrap traffic
#8367
Show file tree
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 Changes from all commits
Commits

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10 commits


Select commit
Hold shift + click to select a range
16d1bc2

perf(client-runtime): reuse server config subscription


Adamulek123 Aug 26, 2026
675cf82

fix(client-runtime): replay config to every subscriber


Adamulek123 Aug 27, 2026
53584a2

fix(client-runtime): keep config fanout nonblocking


Adamulek123 Aug 27, 2026
3785988

fix(client-runtime): preserve config update events


Adamulek123 Aug 27, 2026
df04931

test(client-runtime): cover config event replay


Adamulek123 Aug 27, 2026
4ea0362

fix(client-runtime): preserve environment theme config events


t3dotgg Sep 1, 2026
0e185b0

refactor(client-runtime): import config projection directly


t3dotgg Sep 1, 2026
491e5ac

fix(client-runtime): export config projection type


t3dotgg Sep 1, 2026
a68af45

docs(client-runtime): explain environment theme lifecycle


t3dotgg Sep 1, 2026
9114a74

fix(client): recover config state after session failure


t3dotgg Sep 1, 2026

File filter

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1 change: 1 addition & 0 deletions
apps/web/src/cloud/linkEnvironment.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -91,6 +91,7 @@ function registryLayer(options?: {
 const session: RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

5 changes: 4 additions & 1 deletion
apps/web/src/connection/runtime.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -30,7 +30,10 @@ type ConnectionLayerSource =
 | typeof backgroundActivityObserverLayer
 | typeof backgroundActivityReporterLayer;

const providedClientConnectionLayer = Layer.merge(Connection.layer, snapshotLoaderLayer).pipe(
const providedClientConnectionLayer = Layer.merge(
 Connection.layerWithOptions({ environmentThemes: true }),
 snapshotLoaderLayer,
).pipe(
 Layer.provideMerge(
 Layer.mergeAll(
 runtimeContextLayer,
Expand Down

53 changes: 26 additions & 27 deletions
packages/client-runtime/src/connection/layer.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -15,30 +15,29 @@ const resolverLayer = ConnectionResolver.layer.pipe(
 Layer.provide(RemoteEnvironmentAuthorization.layer),
);

const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layer)),
);

const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));

const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));

const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
);

const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
);

export const layer = connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
export function layerWithOptions(options: RpcSession.RpcSessionOptions) {
 const driverLayer = ConnectionDriver.layer.pipe(
 Layer.provide(Layer.mergeAll(resolverLayer, RpcSession.layerWithOptions(options))),
 );
 const registryLayer = EnvironmentRegistry.layer.pipe(Layer.provide(driverLayer));
 const onboardingLayer = ConnectionOnboarding.layer.pipe(Layer.provide(registryLayer));
 const connectionServicesLayer = Layer.mergeAll(
 registryLayer,
 RelayEnvironmentDiscovery.layer,
 onboardingLayer,
 );
 const connectionStartupLayer = Layer.effectDiscard(
 Effect.gen(function* () {
 const registry = yield* EnvironmentRegistry.EnvironmentRegistry;
 const platformSource = yield* PlatformConnectionSource.PlatformConnectionSource;
 yield* registry.start;
 yield* platformSource.registrations.pipe(
 Stream.runForEach(registry.reconcilePlatform),
 Effect.forkScoped,
 );
 }).pipe(Effect.withSpan("clientRuntime.connection.application.start")),
 );
 return connectionStartupLayer.pipe(Layer.provideMerge(connectionServicesLayer));
}

export const layer = layerWithOptions({});

2 changes: 2 additions & 0 deletions
packages/client-runtime/src/connection/registry.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -356,6 +356,8 @@ const makeHarness = Effect.fn("TestEnvironmentRegistry.makeHarness")(function* (
 Effect.succeed({
 client: {} as RpcSession.RpcSession["client"],
 initialConfig: Effect.die(new Error("Config is not used by registry tests.")),
 subscribeServerConfig: () =>
 Stream.die(new Error("Config is not used by registry tests.")),
 ready: Effect.void,
 probe: Effect.void,
 closed: Deferred.await(closed),
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1 change: 1 addition & 0 deletions
packages/client-runtime/src/connection/supervisor.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -163,6 +163,7 @@ const makeHarness = Effect.fn("TestConnectionHarness.make")(function* (options?:
 Effect.succeed({
 client: TEST_RPC_CLIENT,
 initialConfig: Effect.die(new Error("Initial config is not used by supervisor tests.")),
 subscribeServerConfig: (input) => TEST_RPC_CLIENT.subscribeServerConfig(input),
 ready: options?.ready?.(attempt) ?? Effect.void,
 probe: options?.probe?.(attempt) ?? Effect.void,
 closed: Deferred.await(closed),
Expand Down

1 change: 1 addition & 0 deletions
packages/client-runtime/src/operations/commands.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -57,6 +57,7 @@ const makeSupervisor = Effect.fn("TestEnvironmentCommands.makeSupervisor")(funct
 const session: RpcSession.RpcSession = {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand Down

36 changes: 36 additions & 0 deletions
packages/client-runtime/src/rpc/client.test.ts

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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,8 @@
import {
 DEFAULT_SERVER_SETTINGS,
 EnvironmentId,
 type RelayClientInstallProgressEvent,
 type ServerConfigStreamEvent,
 WS_METHODS,
} from "@t3tools/contracts";
import { describe, expect, it } from "@effect/vitest";
Expand DownExpand Up@@ -47,6 +49,7 @@ function session(client: WsRpcProtocolClient): RpcSession.RpcSession {
 return {
 client,
 initialConfig: Effect.never,
 subscribeServerConfig: (input) => client.subscribeServerConfig(input),
 ready: Effect.void,
 probe: Effect.void,
 closed: Effect.never,
Expand DownExpand Up@@ -77,6 +80,39 @@ const makeHarness = Effect.fn("TestEnvironmentRpc.makeHarness")(function* () {
});

describe("environment RPC", () => {
 it.effect("reuses the session config stream instead of opening a duplicate subscription", () =>
 Effect.gen(function* () {
 const event: ServerConfigStreamEvent = {
 version: 1,
 type: "settingsUpdated",
 payload: { settings: DEFAULT_SERVER_SETTINGS },
 };
 let duplicateSubscriptions = 0;
 const client = {
 [WS_METHODS.subscribeServerConfig]: () => {
 duplicateSubscriptions += 1;
 return Stream.never;
 },
 } as unknown as WsRpcProtocolClient;
 const { activeSession, supervisor } = yield* makeHarness();
 yield* SubscriptionRef.set(
 activeSession,
 Option.some({
 ...session(client),
 subscribeServerConfig: () => Stream.succeed(event),
 }),
 );

 const received = yield* subscribe(WS_METHODS.subscribeServerConfig, {}).pipe(
 Stream.runHead,
 Effect.provideService(EnvironmentSupervisor.EnvironmentSupervisor, supervisor),
 );

 expect(received).toEqual(Option.some(event));
 expect(duplicateSubscriptions).toBe(0);
 }),
 );

 it.effect("observes unary requests until they complete", () =>
 Effect.gen(function* () {
 const observations: string[] = [];
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6 changes: 5 additions & 1 deletion
packages/client-runtime/src/rpc/client.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -203,7 +203,11 @@ export function subscribeDynamic<TTag extends EnvironmentSubscriptionRpcTag>(
 Option.match({
 onNone: () => Stream.empty,
 onSome: (session) => {
 const method = session.client[tag] as (
 const method = (
 tag === WS_METHODS.subscribeServerConfig
 ? session.subscribeServerConfig
 : session.client[tag]
 ) as (
 input: EnvironmentRpcInput<TTag>,
 ) => Stream.Stream<
 EnvironmentRpcStreamValue<TTag>,
Expand Down
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