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matrix-cerberus

matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.

Features

  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.

Supported third party accounts

  • GitHub
  • Patreon

Documentation

You can find the documentation here.

Contact Us

If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com

About

A service for authenticating matrix room membership against third party services

matrixdoctors.github.io/matrix-cerberus/

Topics

gsoc-2022matrixmatrix-orgpythonreact

Resources

Readme
Activity
Custom properties

Stars

11 stars

Watchers

3 watching

Forks

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, '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" + '

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matrix-cerberus
matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.
Features
  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.
Supported third party accounts
  • GitHub
  • Patreon
Documentation
You can find the documentation here.
Contact Us
If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com
About
A service for authenticating matrix room membership against third party services
matrixdoctors.github.io/matrix-cerberus/
Topics
gsoc-2022matrixmatrix-orgpythonreact
Resources
Readme
Activity
Custom properties
Stars
11 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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('^' + ".*" + '

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This repository was archived by the owner on Jun 3, 2025. It is now read-only.

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matrix-cerberus
matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.
Features
  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.
Supported third party accounts
  • GitHub
  • Patreon
Documentation
You can find the documentation here.
Contact Us
If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com
About
A service for authenticating matrix room membership against third party services
matrixdoctors.github.io/matrix-cerberus/
Topics
gsoc-2022matrixmatrix-orgpythonreact
Resources
Readme
Activity
Custom properties
Stars
11 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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('^' + ".*" + '

Skip to content

This repository was archived by the owner on Jun 3, 2025. It is now read-only.

BranchesTags
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matrix-cerberus
matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.
Features
  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.
Supported third party accounts
  • GitHub
  • Patreon
Documentation
You can find the documentation here.
Contact Us
If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com
About
A service for authenticating matrix room membership against third party services
matrixdoctors.github.io/matrix-cerberus/
Topics
gsoc-2022matrixmatrix-orgpythonreact
Resources
Readme
Activity
Custom properties
Stars
11 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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

This repository was archived by the owner on Jun 3, 2025. It is now read-only.

BranchesTags
Repository files navigation
matrix-cerberus
matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.
Features
  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.
Supported third party accounts
  • GitHub
  • Patreon
Documentation
You can find the documentation here.
Contact Us
If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com
About
A service for authenticating matrix room membership against third party services
matrixdoctors.github.io/matrix-cerberus/
Topics
gsoc-2022matrixmatrix-orgpythonreact
Resources
Readme
Activity
Custom properties
Stars
11 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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('^' + ".*" + '

Skip to content

This repository was archived by the owner on Jun 3, 2025. It is now read-only.

BranchesTags
Repository files navigation
matrix-cerberus
matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.
Features
  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.
Supported third party accounts
  • GitHub
  • Patreon
Documentation
You can find the documentation here.
Contact Us
If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com
About
A service for authenticating matrix room membership against third party services
matrixdoctors.github.io/matrix-cerberus/
Topics
gsoc-2022matrixmatrix-orgpythonreact
Resources
Readme
Activity
Custom properties
Stars
11 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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

This repository was archived by the owner on Jun 3, 2025. It is now read-only.

BranchesTags
Repository files navigation
matrix-cerberus
matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.
Features
  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.
Supported third party accounts
  • GitHub
  • Patreon
Documentation
You can find the documentation here.
Contact Us
If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com
About
A service for authenticating matrix room membership against third party services
matrixdoctors.github.io/matrix-cerberus/
Topics
gsoc-2022matrixmatrix-orgpythonreact
Resources
Readme
Activity
Custom properties
Stars
11 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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

This repository was archived by the owner on Jun 3, 2025. It is now read-only.

BranchesTags
Repository files navigation
matrix-cerberus
matrix-cerberus is an application that has the ability to delegate membership of a room based on a user’s interaction with other third party services.
Features
  • Send automatic invites to authorized users.
  • Update room memberships based on current user's state(Invite, Kick)
  • Admin panel for configuring relationships between rooms and users.
  • Generate external invite URLs for a room.
Supported third party accounts
  • GitHub
  • Patreon
Documentation
You can find the documentation here.
Contact Us
If you have any ideas that you want to share or have any queries then feel free to join the public room #matrix-cerberus:cadair.com
About
A service for authenticating matrix room membership against third party services
matrixdoctors.github.io/matrix-cerberus/
Topics
gsoc-2022matrixmatrix-orgpythonreact
Resources
Readme
Activity
Custom properties
Stars
11 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages