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É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32 followers · 9 following

Achievements

Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO

Achievements

Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO

Highlights

  • Pro

Organizations

@CerneBR

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Jovinull/README.md

An urutau, judging you

Felipe Jovino

I wrote an operating system so I'd have somewhere to run Doom.

Kintaro taking notes, from Golden Boy

Things I've built, in no particular order of sanity:

StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.

sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.

macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.

SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.

rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.

Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.

SignForest — real-time Libras recognition from a webcam.


Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.

Night job: everything above.

Achievement Unlocked: GitHub thought I was a bot

In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.

Email · LinkedIn · Lattes · Portfolio

See You Space Cowboy...

Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned Loading

  1. sonicheroessonicheroesPublic

    Decompilation of Sonic Heroes for the Nintendo GameCube

    C++ 16 4

  2. StinkOSStinkOSPublic

    32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C 5

  3. rinha-2026-zigrinha-2026-zigPublic

    Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig

  4. KenshoKenshoPublic

    Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust

  5. SmartyRedSmartyRedPublic

    Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python

  6. OndinaOndinaPublic

    Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir

, '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
View Jovinull's full-sized avatar
🍉
É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32
followers
 · 9
following

Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Highlights
  • 
Pro

Organizations
@CerneBR

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Jovinull/README.md
An urutau, judging you
Felipe Jovino
I wrote an operating system so I'd have somewhere to run Doom.
Kintaro taking notes, from Golden Boy
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.

Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
Email ·
LinkedIn ·
Lattes ·
Portfolio
See You Space Cowboy...
Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned
Loading
  1. sonicheroessonicheroesPublic
    
Decompilation of Sonic Heroes for the Nintendo GameCube

    C++
16

4

  2. StinkOSStinkOSPublic
    
32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C
5

  3. rinha-2026-zigrinha-2026-zigPublic
    
Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig
  4. KenshoKenshoPublic
    
Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust
  5. SmartyRedSmartyRedPublic
    
Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python
  6. OndinaOndinaPublic
    
Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir

, '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
View Jovinull's full-sized avatar
🍉
É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32
followers
 · 9
following

Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Highlights
  • 
Pro

Organizations
@CerneBR

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Jovinull/README.md
An urutau, judging you
Felipe Jovino
I wrote an operating system so I'd have somewhere to run Doom.
Kintaro taking notes, from Golden Boy
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.

Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
Email ·
LinkedIn ·
Lattes ·
Portfolio
See You Space Cowboy...
Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned
Loading
  1. sonicheroessonicheroesPublic
    
Decompilation of Sonic Heroes for the Nintendo GameCube

    C++
16

4

  2. StinkOSStinkOSPublic
    
32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C
5

  3. rinha-2026-zigrinha-2026-zigPublic
    
Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig
  4. KenshoKenshoPublic
    
Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust
  5. SmartyRedSmartyRedPublic
    
Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python
  6. OndinaOndinaPublic
    
Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir

, '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
View Jovinull's full-sized avatar
🍉
É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32
followers
 · 9
following

Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Highlights
  • 
Pro

Organizations
@CerneBR

Block or report Jovinull

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Jovinull/README.md
An urutau, judging you
Felipe Jovino
I wrote an operating system so I'd have somewhere to run Doom.
Kintaro taking notes, from Golden Boy
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.

Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
Email ·
LinkedIn ·
Lattes ·
Portfolio
See You Space Cowboy...
Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned
Loading
  1. sonicheroessonicheroesPublic
    
Decompilation of Sonic Heroes for the Nintendo GameCube

    C++
16

4

  2. StinkOSStinkOSPublic
    
32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C
5

  3. rinha-2026-zigrinha-2026-zigPublic
    
Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig
  4. KenshoKenshoPublic
    
Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust
  5. SmartyRedSmartyRedPublic
    
Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python
  6. OndinaOndinaPublic
    
Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir

, '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
View Jovinull's full-sized avatar
🍉
É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32
followers
 · 9
following

Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Highlights
  • 
Pro

Organizations
@CerneBR

Block or report Jovinull

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Learn more about blocking users.


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Jovinull/README.md
An urutau, judging you
Felipe Jovino
I wrote an operating system so I'd have somewhere to run Doom.
Kintaro taking notes, from Golden Boy
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.

Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
Email ·
LinkedIn ·
Lattes ·
Portfolio
See You Space Cowboy...
Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned
Loading
  1. sonicheroessonicheroesPublic
    
Decompilation of Sonic Heroes for the Nintendo GameCube

    C++
16

4

  2. StinkOSStinkOSPublic
    
32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C
5

  3. rinha-2026-zigrinha-2026-zigPublic
    
Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig
  4. KenshoKenshoPublic
    
Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust
  5. SmartyRedSmartyRedPublic
    
Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python
  6. OndinaOndinaPublic
    
Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir

, '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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View Jovinull's full-sized avatar
🍉
É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32
followers
 · 9
following

Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Highlights
  • 
Pro

Organizations
@CerneBR

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Jovinull/README.md
An urutau, judging you
Felipe Jovino
I wrote an operating system so I'd have somewhere to run Doom.
Kintaro taking notes, from Golden Boy
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.

Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
Email ·
LinkedIn ·
Lattes ·
Portfolio
See You Space Cowboy...
Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned
Loading
  1. sonicheroessonicheroesPublic
    
Decompilation of Sonic Heroes for the Nintendo GameCube

    C++
16

4

  2. StinkOSStinkOSPublic
    
32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C
5

  3. rinha-2026-zigrinha-2026-zigPublic
    
Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig
  4. KenshoKenshoPublic
    
Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust
  5. SmartyRedSmartyRedPublic
    
Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python
  6. OndinaOndinaPublic
    
Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir

, '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
View Jovinull's full-sized avatar
🍉
É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32
followers
 · 9
following

Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Highlights
  • 
Pro

Organizations
@CerneBR

Block or report Jovinull

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Jovinull/README.md
An urutau, judging you
Felipe Jovino
I wrote an operating system so I'd have somewhere to run Doom.
Kintaro taking notes, from Golden Boy
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.

Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
Email ·
LinkedIn ·
Lattes ·
Portfolio
See You Space Cowboy...
Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned
Loading
  1. sonicheroessonicheroesPublic
    
Decompilation of Sonic Heroes for the Nintendo GameCube

    C++
16

4

  2. StinkOSStinkOSPublic
    
32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C
5

  3. rinha-2026-zigrinha-2026-zigPublic
    
Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig
  4. KenshoKenshoPublic
    
Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust
  5. SmartyRedSmartyRedPublic
    
Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python
  6. OndinaOndinaPublic
    
Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir

, '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
View Jovinull's full-sized avatar
🍉
É no balanço da carroça que as melancias se ajeitam.
🍉
É no balanço da carroça que as melancias se ajeitam.
32
followers
 · 9
following

Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Achievements
Achievement: StarstruckAchievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLO
Highlights
  • 
Pro

Organizations
@CerneBR

Block or report Jovinull

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Jovinull/README.md
An urutau, judging you
Felipe Jovino
I wrote an operating system so I'd have somewhere to run Doom.
Kintaro taking notes, from Golden Boy
Things I've built, in no particular order of sanity:
StinkOS — 32-bit x86 OS from scratch in C. Preemptive scheduler, a TCP/IP stack down to RFC 793, ELF userland, its own package manager. Zero third-party libraries in the kernel. Doom runs on it.
sonicheroes — decompiling Sonic Heroes for the GameCube, function by function.
macrocosm — dark matter particles coupled to a baryonic SPH fluid in expanding spacetime, volumetric rendering included. Pure C17.
SmartyRed & AwaLink — PPO agents learning Pokémon Red and Zelda: Link's Awakening from raw frames. One of them keeps track of roughly 1700 event flags. They are both very patient.
rinha-2026-zig — vectorized k-NN over a quantized IVF index. In Zig, without libc, on 0.40 of a vCPU.
Bixim — a Tamagotchi engine that runs on an ESP32 and on your desktop from the same codebase.
SignForest — real-time Libras recognition from a webcam.

Day job: IT Coordinator at WM Saúde (SMARTHOSP), CTO at AccessSim — AI + AR for architectural accessibility, picked up by Sebrae's Catalisa ICT — and a Master's in Intelligent Computing at UFS/LABIC.
Night job: everything above.
Achievement Unlocked: GitHub thought I was a bot
In June 2026, GitHub's anti-abuse system suspended my account. False positive — Support confirmed it. Apparently committing this much trips the automation. I choose to read this as a compliment.
Email ·
LinkedIn ·
Lattes ·
Portfolio
See You Space Cowboy...
Urutau photo and Golden Boy clip belong to their respective authors. Code here is MIT.

Pinned
Loading
  1. sonicheroessonicheroesPublic
    
Decompilation of Sonic Heroes for the Nintendo GameCube

    C++
16

4

  2. StinkOSStinkOSPublic
    
32-bit x86 OS from scratch. ELF-aware bootloader, multiboot-compatible kernel at 1MB, preemptive scheduler, anonymous pipes, signals, TCP/IP stack (RFC 793), DHCP/DNS, ELF userland with per-process…

    C
5

  3. rinha-2026-zigrinha-2026-zigPublic
    
Rinha de Backend 2026 (Deteccao de Fraude) em Zig 0.13 sem libc: busca vetorial k-NN sobre indice IVF quantizado, sob restricao de 0.40 vCPU.

    Zig
  4. KenshoKenshoPublic
    
Companion de IA local para desktop Ubuntu: personagem flutuante sempre visivel movido por modelo Qwen .gguf local, com memoria persistente, agenda e tarefas. Rust + Tauri v2, Clean/DDD.

    Rust
  5. SmartyRedSmartyRedPublic
    
Agente autonomo que aprende a jogar Pokemon Red por Aprendizado por Reforco (PPO), observando frames empilhados, mapa de exploracao, badges e ~1700 event flags.

    Python
  6. OndinaOndinaPublic
    
Plataforma de streaming de video em Elixir/Phoenix: fragmentacao HLS adaptativa com FFmpeg, PubSub via Phoenix Channels, PostgreSQL e stack inteiramente conteinerizada.

    Elixir