Ijtihed

I like systems and big numbers :)

Math + CS @ Aalto / SWE @ ŌURA.

Public Projects

Selected

• schema - AI-native IDE for software architecture and system design (TypeScript/Next.js)
• forge - Rust + Vulkan agentic-first game/simulation engine (Rust)
• supertest - Cohort playtesting tool adopted @ Supercell AI Lab (Next.js/Supabase)
• sandengine - GPU falling-sand cellular automaton in Rust + wgpu/WGSL (Rust)
• ps2-forge - Engine + toolchain for building 2D/3D PlayStation 2 games easily (C)
• triple_pendulum_asm - Triple pendulum simulator in x86-64 assembly with JS visualization (Assembly/JavaScript)
• stage - VS Code timeline debugger for Node.js execution traces (TypeScript)
• driftmd - CI tool that catches README/code drift before users do (TypeScript)
• RAGTAG - GraphRAG over Finnish tax law with citation-backed retrieval (Python/TypeScript)

Best merged PRs

• opencv/opencv - Removed FLANN heap-pool lock contention; ~1.7× faster 8-thread matching (C++)
• nodejs/node - Fixed util.inspect OOM in color stack formatting (JavaScript/C++)
• numpy/numpy - Fixed matvec / vecmat in-place aliasing correctness bug (C/Python)
• tensorflow/tensorflow - Normalized non-native NumPy byte order in tensor conversion (Python)
• godotengine/godot - Fixed Polygon2D stale-AABB culling after vertex edits (C++)
• scipy/scipy - Fixed signal.hilbert2 Nyquist-bin correctness for even axes (Python)
• docker/compose - Honored env_file.required:false for missing env files during publish (Go)
• ipython/ipython - Fixed quote-aware %run glob expansion (Python)
• Unity-Technologies/UnityDataTools - Added type filtering to Unity asset dump tooling (C#)
• JuliusBrussee/caveman - Added per-agent model overrides for cavecrew agents (TypeScript)
• Kuberwastaken/claurst - Fixed bash tool hangs from detached child processes (Rust)

More cool stuff

• chronos - Historical simulation with a Rust core (WIP)
• ochess - Online chess platform with engine analysis and Anki-style puzzle generation
• epitaph - npm package for dependency abandonment auditing
• staleflags - npm package for feature-flag auditing
• goodclaude - Tiny Claude Code reinforcement/devtools package
• skribe - Agentic scribe built at HackMIT '25
• emergent systems - Simulations of self-organizing computation
• ijtiOverleaf - ATS-friendly LaTeX resume template
• horizon - Real-time black hole / white hole / wormhole horizon simulator (C++/OpenGL)
• inkbrawl - LLM-first fighting game with deterministic replay loops (JavaScript)

Random

• driftmd-core - Core library for README drift detection
• epitaph-dev-core - Dependency abandonment auditing internals
• staleflags-core - Feature-flag auditing internals
• goodclaude - Positive reinforcement for Claude Code
• portfolio/site experiments - Small web, simulation, and tooling prototypes

Open Source

contributed to

tensorflow/tensorflow ⭐ 196.5k nodejs/node ⭐ 118.3k godotengine/godot ⭐ 114.5k JuliusBrussee/caveman ⭐ 92.1k opencv/opencv ⭐ 90.1k docker/compose ⭐ 37.9k numpy/numpy ⭐ 32.4k lichess-org/lila ⭐ 18.5k ipython/ipython ⭐ 16.7k scipy/scipy ⭐ 14.8k Kuberwastaken/claurst ⭐ 10.1k Unity-Technologies/UnityDataTools ⭐ 809 official-stockfish/fishtest ⭐ 343