Johan Alphonso Braga
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02

Projects

81 total · 52 live

Everything I have built. 52 of them run in your browser on their own subdomain.

Computer vision

15
Computer vision

WebGPU Vision Lab

Four image filters written twice, once as a Canvas2D loop and once as a WGSL compute shader, running on the same webcam frame side by side with honest timings.

WebGPUWGSLJavaScriptCanvas
Computer vision

SAT0RU

Hand-tracked cursed-technique visualiser: MediaPipe landmarks drive a Three.js particle engine, with an ML classifier picking the technique in real time.

JavaScriptThree.jsMediaPipeTensorFlow.js
Computer vision

Globe Control

A 3D globe you steer with your hands: pinch to zoom, move your finger in mid-air to spin it. No camera? Drag, scroll, pinch with two fingers or use the arrow keys.

JavaScriptThree.jsMediaPipeNode
Computer vision

SignSpeed

ASL fingerspelling to text from a webcam. It reads hand geometry instead of pixels, so all 26 letters work with no training, and two seconds of calibration per letter fits it to your own hand.

JavaScriptMediaPipePythonWebGL
Computer vision

Fusion Webcam Tracker

Face, hands and 33-point pose tracked at once, fusing MediaPipe Tasks with parallel TensorFlow.js detectors on a GPU-first backend.

JavaScriptMediaPipe TasksTensorFlow.jsWebGPU
Computer vision

Vortex Builder

Build voxel structures in the air over your webcam feed: pinch to place, pinch and drag to paint, make a fist to turn the build. A second synced page drives presets and shows live status.

JavaScriptThree.jsWebGLMediaPipe
Computer vision

Hollow Purple

A five-phase energy sequence that doubles as a calculus visualiser: the blue phase renders partial sums, asymptotic rings and Zeno-style halving.

JavaScriptCanvasCSS
Computer vision

Iron Dome Interceptor

Conic-section maths as a radar interceptor: solve focus and directrix from a moving target's parametric position.

JavaScriptCanvasCSS
Computer vision

Cam Chaos Booth

Twelve real-time webcam effects in one photo booth, with a self-timer and a mirrored preview, each effect a separate per-pixel pass over the camera feed.

JavaScriptCanvasWebRTC
Computer vision

Study Focus Redirector

A webcam focus monitor that watches your head and posture while you study, and when you keep drifting off it opens the McDonald's careers page for you.

JavaScriptMediaPipeElectronCanvas
Computer vision

Attention Detector

A desktop app that watches the webcam and, once you stop facing the screen, pulls Chrome to the front, launching it on Gmail if it is not open.

ElectronMediaPipeWindows APIskoffi
Computer vision

Finger Monkey Lab

A gesture control layer for hand tracking, built as an Electron app over Python ML backends and now running its tracking front end in a browser too.

ElectronJavaScriptPythonML
Computer vision

Native Fusion Control

Control Windows with your body: Python does face, hand and pose fusion, C++ injects input through SendInput at low latency. No browser anywhere.

PythonC++YOLO11Windows SendInput
2026
Computer vision

Reaction Cam

A webcam filter that reads your face and hands, picks a reaction pose, and stamps the artwork over your head, then publishes it to a virtual camera Meet, Zoom, Teams and Discord can select.

PythonOpenCVMediaPipeVirtual camera
2026
Computer vision

Video FX Lab

Python renderer for the blue + red → hollow purple sequence, running either on fixed timings or as a live hand-driven state machine.

PythonOpenCVMediaPipe
2026

Games

15
Games

TiltRacer

A Three.js racing game you steer by tilting an Android phone. The phone app streams gravity-sensor roll and pedal presses at 30 Hz through a WebSocket relay on Vercel, and the keyboard works the whole time.

Three.jsTypeScriptKotlinJetpack Compose
Games

Heat Score

A first-person heist shooter in Three.js: three missions, guards that escalate from suspicious to combat, cover, grenades and a boss fight, plus an Android app that turns a phone into the controller by scanning a QR code.

Three.jsJavaScriptWeb AudioKotlin
Games

Eye Aim Trainer

Gaze-driven target trainer built on WebGazer, with a mouse fallback for anyone without a camera.

JavaScriptWebGazerCanvas
Games

Pose Beat Blaster

Rhythm lanes hit with your body: raise your left arm, your right arm or both. MediaPipe Pose reads the arms and the keyboard works the whole time.

JavaScriptMediaPipeCanvas
Games

Gesture Pong Arena

Pong with your index finger as the paddle, MediaPipe tracking your hand, keyboard always available.

JavaScriptMediaPipeCanvas
Games

Tetris Neon

A Tetris rebuild that follows the Tetris Guideline: 7-bag randomizer, SRS wall kicks, 500 ms lock delay and T-spin scoring.

JavaScriptCanvasnode:test
Games

Snake Arena Remix

Snake with hazards, boosts and an arena that fights back.

JavaScriptCanvas
Games

Brick Breaker Rebuild

Brick breaker with combo scoring and hand-tuned level progression.

JavaScriptCanvas
Games

Arcade Wave Survivor

Top-down wave survival: escalating enemy waves, upgrade choices between rounds.

JavaScriptCanvas
Games

Grid Defender

Grid-based defence simulation where placement and power routing decide the outcome.

JavaScriptCanvas
Games

Antiphon

A one-button call-and-response rhythm game. The song plays a phrase, you tap it back a bar later, and every tap plays the next note of the melody. Three seeded tracks, judged against the moment each sound reached your ears.

JavaScriptCanvasWeb Audionode:test
Games

Riposte

A typing duel where every enemy strike is a word you can type to parry. Your own strike word keeps its progress while you switch to block, and the difficulty curve was tuned by a bot typist playing whole runs.

JavaScriptSVGWeb Audionode:test
Games

Penumbra

Black Box, the deduction game, with a live count of every atom layout that still fits the rays you have fired. Each board is generated from a seed and proven to have exactly one answer.

JavaScriptCanvasWeb Audionode:test
Games

Downshift

A platformer with no jump and no walking. The only control is choosing which way is down, plus one flip in mid-air that comes back when you land. Ten rooms, each proven finishable by a replayed route.

JavaScriptCanvasWeb Audionode:test
Games

Pressure Line

A pipe-routing puzzle played against a rising flow where every open arm floods. Levels are grown from seeded random spanning trees, so each one has a guaranteed route and a retry comes back identical.

JavaScriptCanvasWeb Audionode:test

Machine learning

7
Machine learning

ONNX Digit Lab

A 26 KB neural network running entirely in a browser tab. Draw a digit, it classifies on device, and the page reports which execution provider it actually got and what the inference cost.

ONNX Runtime WebJavaScriptWebGLWASM
Machine learning

Halo

A reverse GitHub for AI-written work. Give it a repository, gist, pull request, package or web page and it returns a calibrated estimate of whether the work was AI-generated, with the file, commit or line that shows why.

PythonFastAPIPostgreSQLML
Open ↗
Machine learning

Jarvis Wake

Always-on desktop assistant listening for a wake phrase, then routing the spoken task straight into Gemini.

ElectronNodeGemini APISpeech recognition
2026
Machine learning

Screen Solver

Captures whatever is on screen, asks Gemini to solve it, then types the answer into the app you're focused on.

ElectronNodeGemini API
2026
Machine learning

Chess ML

A neural network that learns chess by distilling Stockfish, with MCTS on top and a proper Elo measurement against Stockfish itself.

PythonPyTorchStockfishMCTS
2026
Machine learning

Meme Detector

An image classification pipeline trained to recognise meme formats from a curated dataset.

PythonPyTorchComputer vision
2026
Machine learning

Resume Lens

A resume analyser that reads a CV the way an applicant tracking system does, scores each bullet on Google's X-Y-Z formula, and measures coverage of a pasted job description with BM25 term weights.

JavaScriptNodeInformation retrievalCLI
2026

Mobile

1
Mobile

Kivo for Android

The website is the app, Kivo wrapped in a Trusted Web Activity so one codebase gains a launcher icon, long-press shortcuts and native affordances.

AndroidKotlinTWAGradle
2026

Products

12
Products

MindMesh Board

Jot ideas, link the ones that go together, and tidy them into a clear map. Tab adds a linked idea, a pasted list becomes a map, and Pip, a thought bubble mascot, helps along the way.

JavaScriptSVGBroadcastChannelnode:test
Products

MoodMix Lab

Set four mood sliders and get a playlist you can see the reasoning behind, with a short preview that sounds like each track's mood.

JavaScriptWeb AudioCSS
Products

UPCAT Reviewer

Adaptive study system with 1,017 questions across 28 topics that learns which topics you're weak at and schedules what to review next.

JavaScriptPWAIndexedDBService Worker
Products

Physics Reviewer

A kinematics trainer that generates its own problems, marks them instantly and shows the full working either way.

JavaScriptHTMLCSSLocalStorage
Products

Kivo

A life operating system: one account holding Money, School, Commute, Life and Local, with a home brief that reads all five together to say what the day asks of you.

Next.jsTypeScriptPostgreSQLReact
2026
Products

Invoice Studio

Invoices and quotes for people who bill by hand: type the lines, print the PDF, send it. The arithmetic is done in whole pennies so the total always matches the lines.

JavaScriptHTMLCSSLocalStorage
Products

Lux

A business operating system. A business signs up, picks its type, and gets a public site, a customer record, a booking or order flow and numbers that all know about each other.

Next.jsTypeScriptPostgreSQLReact
Open ↗
Products

Coil

A Python playground for kids. Real Python 3.14 runs in the browser through Pyodide, and 24 missions across 8 levels go from print to a small adventure game, with turtle drawing and friendly explanations of Python errors.

PythonPyodideJavaScriptWeb Workers
Open ↗
Products

Almost Said

Write the thing you've been too nervous to say; get two links: one to send, one to watch what happens.

Next.jsTypeScriptPostgreSQL
2026
Products

FairDev

Tells a developer whether a salary offer is fair, using GitHub signals, resume parsing, portfolio ingestion, LLM code evaluation and seeded market benchmarks.

TypeScriptMonorepoLLM APIsPDF parsing
2026
Products

Classic Pares POS

A real tablet point-of-sale system running in a restaurant: menu, cart, tickets, inventory and reports, packaged as an Android app and doubling as a remote reporting site.

ReactTypeScriptViteAndroid
2026
Products

Icarus

A Valorant strategy and line-up tool published on the Microsoft Store, built around a drawing system teams use to create, save and iterate on strategies locally.

FlutterDartAndroidWindows
2026

Security

2
Security

Aegis Scan

A defensive web-security assessment platform: passive scans of headers, cookies, TLS, DNS and technology hints, graded A–F with a remediation report.

Next.jsTypeScriptDrizzlePostgreSQL
2026
Security

TimeCapsule Vault

A CLI vault that encrypts a payload until a chosen date, binding the unlock date into the authenticated data so it cannot be edited after the fact.

NodeAES-GCMscryptCLI
2026

Systems

14
Systems

Local-First Sync

A last-writer-wins CRDT with vector clocks and causal delivery, written from scratch, so three replicas can go offline, edit the same keys and reconverge without a server deciding anything.

JavaScriptCRDTVector clocksNode
2026
Systems

Polyglot Discord Platform

A full Discord platform across four languages: a discord.js gateway bot, a Kotlin Ktor API as system of record, a React admin dashboard and an MCP server for control from inside ChatGPT.

TypeScriptKotlinKtorReact
2026
Systems

Emergance

Offline-first emergency dispatch: an Android SOS/driver app, an Electron dispatch desk with offline maps, and a web mirror, all of them speaking a shared protobuf schema.

KotlinComposeRoomElectron
2026
Systems

TikTok Interactive

A live-stream interactivity bridge: a server and bridge layer that turn viewer actions into real-time events.

NodeTypeScriptWebSockets
2026
Systems

RouteCraft Sim

A routing simulator implementing and comparing pathfinding strategies under changing network conditions.

JavaScriptAlgorithmsSimulation
2026
Systems

Rate Limit Lab

Five rate limiting algorithms replaying the same traffic side by side, plus a node:http middleware that advertises quota with the IETF RateLimit headers.

NodeJavaScriptnode:httpCanvas
Systems

Idempotency Lab

An Idempotency-Key middleware for node:http built to the IETF draft, and a seeded simulation of 200 customers retrying payments through a lossy network, with and without it.

NodeJavaScriptnode:httpWeb Crypto
Systems

Backoff Lab

Jittered backoff, an SRE retry budget and a circuit breaker, with seeded simulations of a contended database row and of a retry storm that outlives the outage that started it.

NodeJavaScriptnode:httpCanvas
Systems

Cache Stampede Lab

XFetch early expiration, single-flight, memcache leases and stale-while-revalidate, compared on one seeded simulation of a hot cache key expiring in front of a database.

NodeJavaScriptCanvas
Systems

Consistent Hash Lab

A vnode ring, jump hash, rendezvous hashing and bounded loads, compared with hash % n on one seeded key set: how evenly each spreads keys and how many move when a cache node joins.

NodeJavaScriptCanvas
Systems

Tail Latency Lab

Fan-out tail amplification, hedged requests on idle and loaded replicas, and power-of-two-choices load balancing, each simulated on seeded runs and checked against its closed form.

NodeJavaScriptCanvas
Systems

StreamLane

A Go service that ranks work from impact, urgency, effort and risk, written as idiomatic package-per-concern Go with table-driven tests.

Go
2026
Systems

ForgeQueue

A Rust CLI that prioritises a backlog using WSJF, the weighted-shortest-job-first formula, and packs the result into an effort budget.

RustCLIserde
2026
Systems

Velocity Lens

A small Java planner that picks a sprint from your backlog CSV, packing the effort you have for the most total value, and says why each task was left out.

JavaCSVDynamic programming
2026

Tools

15
Tools

FocusForge

A focus timer that keeps time when you switch tabs, rings when time's up, and shows where your week went. Ember, a little spark mascot, keeps you company.

JavaScriptWeb AudioNotifications APISVG
Tools

Autopilot Planner

Scores a backlog by leverage, value per unit of effort discounted by confidence, then packs the week against a real budget and tells you what it left out.

JavaScriptHTMLCSS
Tools

Activity Tracker Pro

Windows-first Electron app for consent-based activity tracking with analytics, exports and sharing, running quietly from the system tray.

ElectronNodeTesseract OCRSQLite
2026
Tools

Wi-Fi Disruption Mapper

A local Windows dashboard that measures Wi-Fi disruption as you walk around a home or office, turning dead zones into data.

PythonWindows APIsLocal dashboard
2026
Tools

Virtual Key Presser

A small Windows GUI input presser, repeat keyboard combinations or a mouse button, which makes it an auto clicker too. Settings persist between runs.

PythonWindows GUI
2026
Tools

Workflow CLI Kit

A dependency-free CLI that scaffolds a runbook from a project's own package.json and checks READMEs and runbooks by their real headings, with a score and a CI gate.

NodeJavaScriptCLICommonMark
2026
Tools

Autopilot Ops

Ranks engineering work by value over effort and packs the week's budget for the most total value, with the same planner in Python and in the browser.

PythonFastAPIJavaScriptCLI
Tools

Ship Standards

An engineering standards system, build order, craft rules and a review gate, including a register of what AI-assisted building measurably gets wrong, drawn from 60+ verified primary sources.

DocumentationStandardsTooling
2026
Tools

Siphon

Drop in a bank or card CSV and see every recurring charge: what it costs a year, which prices went up, which ones stopped and when each renews.

JavaScriptCSViCalendarnode:test
Tools

EvenUp

Split costs with friends and settle up in the fewest payments. EvenUp writes the pay-me-back message for you, and Penny, a coin mascot, helps along the way.

JavaScriptSVGnode:test
Tools

GoodHours

What time works for everyone? Add where each person is and the hours they work, and GoodHours shows the times inside everyone's day, in each person's own time. It warns you when clocks are about to change and writes the invite for you. Sol, a little sun, helps along the way.

JavaScriptIntl APISVGnode:test
Tools

RoomCoat

How much paint does my room need, and which tins should I buy? Measure the room and RoomCoat works it out, doors, windows, ceilings and new plaster counted, then picks the cheapest mix of tin sizes. Dab, a paint tin, helps along the way.

JavaScriptSVGnode:test
Tools

Batchwise

Make any recipe bigger, smaller or fit the pan you have. Paste the ingredients, say how many it should feed or which pan you are using, and get amounts you can actually measure, in cups and spoons or grams. Scoop, a measuring cup, helps along the way.

JavaScriptSVGnode:test
Tools

ChoreShare

A fair chore rota for a shared house or a family. Add who lives there and what needs doing, and ChoreShare splits the jobs by time, rotates the worst ones and writes the group chat message. Suds, a soap bubble, helps you set it up.

JavaScriptSVGnode:test
Tools

Shelf Check

Type what each shelf label says and see which pack is really cheaper, per 100 g, per litre or per item, with multi-buy offers counted properly. Tag, a price tag mascot, points out the traps.

JavaScriptSVGService Workernode:test

Runs in your browser

52
Machine learning

ONNX Digit Lab

A 26 KB neural network running entirely in a browser tab. Draw a digit, it classifies on device, and the page reports which execution provider it actually got and what the inference cost.

ONNX Runtime WebJavaScriptWebGLWASM
Computer vision

WebGPU Vision Lab

Four image filters written twice, once as a Canvas2D loop and once as a WGSL compute shader, running on the same webcam frame side by side with honest timings.

WebGPUWGSLJavaScriptCanvas
Computer vision

SAT0RU

Hand-tracked cursed-technique visualiser: MediaPipe landmarks drive a Three.js particle engine, with an ML classifier picking the technique in real time.

JavaScriptThree.jsMediaPipeTensorFlow.js
Computer vision

Globe Control

A 3D globe you steer with your hands: pinch to zoom, move your finger in mid-air to spin it. No camera? Drag, scroll, pinch with two fingers or use the arrow keys.

JavaScriptThree.jsMediaPipeNode
Computer vision

SignSpeed

ASL fingerspelling to text from a webcam. It reads hand geometry instead of pixels, so all 26 letters work with no training, and two seconds of calibration per letter fits it to your own hand.

JavaScriptMediaPipePythonWebGL
Computer vision

Fusion Webcam Tracker

Face, hands and 33-point pose tracked at once, fusing MediaPipe Tasks with parallel TensorFlow.js detectors on a GPU-first backend.

JavaScriptMediaPipe TasksTensorFlow.jsWebGPU
Computer vision

Vortex Builder

Build voxel structures in the air over your webcam feed: pinch to place, pinch and drag to paint, make a fist to turn the build. A second synced page drives presets and shows live status.

JavaScriptThree.jsWebGLMediaPipe
Computer vision

Hollow Purple

A five-phase energy sequence that doubles as a calculus visualiser: the blue phase renders partial sums, asymptotic rings and Zeno-style halving.

JavaScriptCanvasCSS
Computer vision

Iron Dome Interceptor

Conic-section maths as a radar interceptor: solve focus and directrix from a moving target's parametric position.

JavaScriptCanvasCSS
Computer vision

Cam Chaos Booth

Twelve real-time webcam effects in one photo booth, with a self-timer and a mirrored preview, each effect a separate per-pixel pass over the camera feed.

JavaScriptCanvasWebRTC
Computer vision

Study Focus Redirector

A webcam focus monitor that watches your head and posture while you study, and when you keep drifting off it opens the McDonald's careers page for you.

JavaScriptMediaPipeElectronCanvas
Games

TiltRacer

A Three.js racing game you steer by tilting an Android phone. The phone app streams gravity-sensor roll and pedal presses at 30 Hz through a WebSocket relay on Vercel, and the keyboard works the whole time.

Three.jsTypeScriptKotlinJetpack Compose
Games

Heat Score

A first-person heist shooter in Three.js: three missions, guards that escalate from suspicious to combat, cover, grenades and a boss fight, plus an Android app that turns a phone into the controller by scanning a QR code.

Three.jsJavaScriptWeb AudioKotlin
Games

Eye Aim Trainer

Gaze-driven target trainer built on WebGazer, with a mouse fallback for anyone without a camera.

JavaScriptWebGazerCanvas
Games

Pose Beat Blaster

Rhythm lanes hit with your body: raise your left arm, your right arm or both. MediaPipe Pose reads the arms and the keyboard works the whole time.

JavaScriptMediaPipeCanvas
Games

Gesture Pong Arena

Pong with your index finger as the paddle, MediaPipe tracking your hand, keyboard always available.

JavaScriptMediaPipeCanvas
Games

Tetris Neon

A Tetris rebuild that follows the Tetris Guideline: 7-bag randomizer, SRS wall kicks, 500 ms lock delay and T-spin scoring.

JavaScriptCanvasnode:test
Games

Snake Arena Remix

Snake with hazards, boosts and an arena that fights back.

JavaScriptCanvas
Games

Brick Breaker Rebuild

Brick breaker with combo scoring and hand-tuned level progression.

JavaScriptCanvas
Games

Arcade Wave Survivor

Top-down wave survival: escalating enemy waves, upgrade choices between rounds.

JavaScriptCanvas
Games

Grid Defender

Grid-based defence simulation where placement and power routing decide the outcome.

JavaScriptCanvas
Products

MindMesh Board

Jot ideas, link the ones that go together, and tidy them into a clear map. Tab adds a linked idea, a pasted list becomes a map, and Pip, a thought bubble mascot, helps along the way.

JavaScriptSVGBroadcastChannelnode:test
Products

MoodMix Lab

Set four mood sliders and get a playlist you can see the reasoning behind, with a short preview that sounds like each track's mood.

JavaScriptWeb AudioCSS
Tools

FocusForge

A focus timer that keeps time when you switch tabs, rings when time's up, and shows where your week went. Ember, a little spark mascot, keeps you company.

JavaScriptWeb AudioNotifications APISVG
Products

UPCAT Reviewer

Adaptive study system with 1,017 questions across 28 topics that learns which topics you're weak at and schedules what to review next.

JavaScriptPWAIndexedDBService Worker
Products

Physics Reviewer

A kinematics trainer that generates its own problems, marks them instantly and shows the full working either way.

JavaScriptHTMLCSSLocalStorage
Tools

Autopilot Planner

Scores a backlog by leverage, value per unit of effort discounted by confidence, then packs the week against a real budget and tells you what it left out.

JavaScriptHTMLCSS
Products

Invoice Studio

Invoices and quotes for people who bill by hand: type the lines, print the PDF, send it. The arithmetic is done in whole pennies so the total always matches the lines.

JavaScriptHTMLCSSLocalStorage
Products

Lux

A business operating system. A business signs up, picks its type, and gets a public site, a customer record, a booking or order flow and numbers that all know about each other.

Next.jsTypeScriptPostgreSQLReact
Open ↗
Products

Coil

A Python playground for kids. Real Python 3.14 runs in the browser through Pyodide, and 24 missions across 8 levels go from print to a small adventure game, with turtle drawing and friendly explanations of Python errors.

PythonPyodideJavaScriptWeb Workers
Open ↗
Machine learning

Halo

A reverse GitHub for AI-written work. Give it a repository, gist, pull request, package or web page and it returns a calibrated estimate of whether the work was AI-generated, with the file, commit or line that shows why.

PythonFastAPIPostgreSQLML
Open ↗
Computer vision

Attention Detector

A desktop app that watches the webcam and, once you stop facing the screen, pulls Chrome to the front, launching it on Gmail if it is not open.

ElectronMediaPipeWindows APIskoffi
Computer vision

Finger Monkey Lab

A gesture control layer for hand tracking, built as an Electron app over Python ML backends and now running its tracking front end in a browser too.

ElectronJavaScriptPythonML
Tools

Autopilot Ops

Ranks engineering work by value over effort and packs the week's budget for the most total value, with the same planner in Python and in the browser.

PythonFastAPIJavaScriptCLI
Systems

Rate Limit Lab

Five rate limiting algorithms replaying the same traffic side by side, plus a node:http middleware that advertises quota with the IETF RateLimit headers.

NodeJavaScriptnode:httpCanvas
Systems

Idempotency Lab

An Idempotency-Key middleware for node:http built to the IETF draft, and a seeded simulation of 200 customers retrying payments through a lossy network, with and without it.

NodeJavaScriptnode:httpWeb Crypto
Systems

Backoff Lab

Jittered backoff, an SRE retry budget and a circuit breaker, with seeded simulations of a contended database row and of a retry storm that outlives the outage that started it.

NodeJavaScriptnode:httpCanvas
Systems

Cache Stampede Lab

XFetch early expiration, single-flight, memcache leases and stale-while-revalidate, compared on one seeded simulation of a hot cache key expiring in front of a database.

NodeJavaScriptCanvas
Systems

Consistent Hash Lab

A vnode ring, jump hash, rendezvous hashing and bounded loads, compared with hash % n on one seeded key set: how evenly each spreads keys and how many move when a cache node joins.

NodeJavaScriptCanvas
Systems

Tail Latency Lab

Fan-out tail amplification, hedged requests on idle and loaded replicas, and power-of-two-choices load balancing, each simulated on seeded runs and checked against its closed form.

NodeJavaScriptCanvas
Tools

Siphon

Drop in a bank or card CSV and see every recurring charge: what it costs a year, which prices went up, which ones stopped and when each renews.

JavaScriptCSViCalendarnode:test
Tools

EvenUp

Split costs with friends and settle up in the fewest payments. EvenUp writes the pay-me-back message for you, and Penny, a coin mascot, helps along the way.

JavaScriptSVGnode:test
Tools

GoodHours

What time works for everyone? Add where each person is and the hours they work, and GoodHours shows the times inside everyone's day, in each person's own time. It warns you when clocks are about to change and writes the invite for you. Sol, a little sun, helps along the way.

JavaScriptIntl APISVGnode:test
Tools

RoomCoat

How much paint does my room need, and which tins should I buy? Measure the room and RoomCoat works it out, doors, windows, ceilings and new plaster counted, then picks the cheapest mix of tin sizes. Dab, a paint tin, helps along the way.

JavaScriptSVGnode:test
Tools

Batchwise

Make any recipe bigger, smaller or fit the pan you have. Paste the ingredients, say how many it should feed or which pan you are using, and get amounts you can actually measure, in cups and spoons or grams. Scoop, a measuring cup, helps along the way.

JavaScriptSVGnode:test
Tools

ChoreShare

A fair chore rota for a shared house or a family. Add who lives there and what needs doing, and ChoreShare splits the jobs by time, rotates the worst ones and writes the group chat message. Suds, a soap bubble, helps you set it up.

JavaScriptSVGnode:test
Tools

Shelf Check

Type what each shelf label says and see which pack is really cheaper, per 100 g, per litre or per item, with multi-buy offers counted properly. Tag, a price tag mascot, points out the traps.

JavaScriptSVGService Workernode:test
Games

Antiphon

A one-button call-and-response rhythm game. The song plays a phrase, you tap it back a bar later, and every tap plays the next note of the melody. Three seeded tracks, judged against the moment each sound reached your ears.

JavaScriptCanvasWeb Audionode:test
Games

Riposte

A typing duel where every enemy strike is a word you can type to parry. Your own strike word keeps its progress while you switch to block, and the difficulty curve was tuned by a bot typist playing whole runs.

JavaScriptSVGWeb Audionode:test
Games

Penumbra

Black Box, the deduction game, with a live count of every atom layout that still fits the rays you have fired. Each board is generated from a seed and proven to have exactly one answer.

JavaScriptCanvasWeb Audionode:test
Games

Downshift

A platformer with no jump and no walking. The only control is choosing which way is down, plus one flip in mid-air that comes back when you land. Ten rooms, each proven finishable by a replayed route.

JavaScriptCanvasWeb Audionode:test
Games

Pressure Line

A pipe-routing puzzle played against a rising flow where every open arm floods. Levels are grown from seeded random spanning trees, so each one has a guaranteed route and a retry comes back identical.

JavaScriptCanvasWeb Audionode:test

Case studies

29
Systems

Local-First Sync

A last-writer-wins CRDT with vector clocks and causal delivery, written from scratch, so three replicas can go offline, edit the same keys and reconverge without a server deciding anything.

JavaScriptCRDTVector clocksNode
2026
Products

Kivo

A life operating system: one account holding Money, School, Commute, Life and Local, with a home brief that reads all five together to say what the day asks of you.

Next.jsTypeScriptPostgreSQLReact
2026
Mobile

Kivo for Android

The website is the app, Kivo wrapped in a Trusted Web Activity so one codebase gains a launcher icon, long-press shortcuts and native affordances.

AndroidKotlinTWAGradle
2026
Products

Almost Said

Write the thing you've been too nervous to say; get two links: one to send, one to watch what happens.

Next.jsTypeScriptPostgreSQL
2026
Security

Aegis Scan

A defensive web-security assessment platform: passive scans of headers, cookies, TLS, DNS and technology hints, graded A–F with a remediation report.

Next.jsTypeScriptDrizzlePostgreSQL
2026
Products

FairDev

Tells a developer whether a salary offer is fair, using GitHub signals, resume parsing, portfolio ingestion, LLM code evaluation and seeded market benchmarks.

TypeScriptMonorepoLLM APIsPDF parsing
2026
Products

Classic Pares POS

A real tablet point-of-sale system running in a restaurant: menu, cart, tickets, inventory and reports, packaged as an Android app and doubling as a remote reporting site.

ReactTypeScriptViteAndroid
2026
Systems

Polyglot Discord Platform

A full Discord platform across four languages: a discord.js gateway bot, a Kotlin Ktor API as system of record, a React admin dashboard and an MCP server for control from inside ChatGPT.

TypeScriptKotlinKtorReact
2026
Systems

Emergance

Offline-first emergency dispatch: an Android SOS/driver app, an Electron dispatch desk with offline maps, and a web mirror, all of them speaking a shared protobuf schema.

KotlinComposeRoomElectron
2026
Products

Icarus

A Valorant strategy and line-up tool published on the Microsoft Store, built around a drawing system teams use to create, save and iterate on strategies locally.

FlutterDartAndroidWindows
2026
Tools

Activity Tracker Pro

Windows-first Electron app for consent-based activity tracking with analytics, exports and sharing, running quietly from the system tray.

ElectronNodeTesseract OCRSQLite
2026
Machine learning

Jarvis Wake

Always-on desktop assistant listening for a wake phrase, then routing the spoken task straight into Gemini.

ElectronNodeGemini APISpeech recognition
2026
Machine learning

Screen Solver

Captures whatever is on screen, asks Gemini to solve it, then types the answer into the app you're focused on.

ElectronNodeGemini API
2026
Computer vision

Native Fusion Control

Control Windows with your body: Python does face, hand and pose fusion, C++ injects input through SendInput at low latency. No browser anywhere.

PythonC++YOLO11Windows SendInput
2026
Computer vision

Reaction Cam

A webcam filter that reads your face and hands, picks a reaction pose, and stamps the artwork over your head, then publishes it to a virtual camera Meet, Zoom, Teams and Discord can select.

PythonOpenCVMediaPipeVirtual camera
2026
Computer vision

Video FX Lab

Python renderer for the blue + red → hollow purple sequence, running either on fixed timings or as a live hand-driven state machine.

PythonOpenCVMediaPipe
2026
Machine learning

Chess ML

A neural network that learns chess by distilling Stockfish, with MCTS on top and a proper Elo measurement against Stockfish itself.

PythonPyTorchStockfishMCTS
2026
Machine learning

Meme Detector

An image classification pipeline trained to recognise meme formats from a curated dataset.

PythonPyTorchComputer vision
2026
Tools

Wi-Fi Disruption Mapper

A local Windows dashboard that measures Wi-Fi disruption as you walk around a home or office, turning dead zones into data.

PythonWindows APIsLocal dashboard
2026
Tools

Virtual Key Presser

A small Windows GUI input presser, repeat keyboard combinations or a mouse button, which makes it an auto clicker too. Settings persist between runs.

PythonWindows GUI
2026
Systems

TikTok Interactive

A live-stream interactivity bridge: a server and bridge layer that turn viewer actions into real-time events.

NodeTypeScriptWebSockets
2026
Security

TimeCapsule Vault

A CLI vault that encrypts a payload until a chosen date, binding the unlock date into the authenticated data so it cannot be edited after the fact.

NodeAES-GCMscryptCLI
2026
Machine learning

Resume Lens

A resume analyser that reads a CV the way an applicant tracking system does, scores each bullet on Google's X-Y-Z formula, and measures coverage of a pasted job description with BM25 term weights.

JavaScriptNodeInformation retrievalCLI
2026
Systems

RouteCraft Sim

A routing simulator implementing and comparing pathfinding strategies under changing network conditions.

JavaScriptAlgorithmsSimulation
2026
Tools

Workflow CLI Kit

A dependency-free CLI that scaffolds a runbook from a project's own package.json and checks READMEs and runbooks by their real headings, with a score and a CI gate.

NodeJavaScriptCLICommonMark
2026
Systems

StreamLane

A Go service that ranks work from impact, urgency, effort and risk, written as idiomatic package-per-concern Go with table-driven tests.

Go
2026
Systems

ForgeQueue

A Rust CLI that prioritises a backlog using WSJF, the weighted-shortest-job-first formula, and packs the result into an effort budget.

RustCLIserde
2026
Systems

Velocity Lens

A small Java planner that picks a sprint from your backlog CSV, packing the effort you have for the most total value, and says why each task was left out.

JavaCSVDynamic programming
2026
Tools

Ship Standards

An engineering standards system, build order, craft rules and a review gate, including a register of what AI-assisted building measurably gets wrong, drawn from 60+ verified primary sources.

DocumentationStandardsTooling
2026