Systems projects just added to the catalog.https://whataibuilt.comhttps://whataibuilt.com/project/ginux/https://whataibuilt.com/project/ginux/A Rust research kernel, later a userspace Linux-compatibility kernel, built with OpenAI Codex under human-directed architecture and acceptance gates.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/maxkernel/https://whataibuilt.com/project/maxkernel/A multi-agent system that generates and tunes high-performance TPU kernels, evaluated with Gemini 3.1 Pro and released under Google's accelerator-agents repository.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/antigravity-os/https://whataibuilt.com/project/antigravity-os/Google's official Antigravity 2.0 demo in which a team of agents on Gemini 3.5 Flash built a functional OS that could run FreeDoom, from a single prompt.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/rabbit/https://whataibuilt.com/project/rabbit/A from-scratch Linux-ABI-compatible x86_64 kernel in Rust, written by an AI agent against human-set milestones, with OpenCode commit trailers.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/minisqlite/https://whataibuilt.com/project/minisqlite/A Rust reimplementation of SQLite's SQL dialect, planner, executor, transactions, and on-disk format, published by Cursor.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/fastrender/https://whataibuilt.com/project/fastrender/An experimental Rust browser engine developed as part of Cursor's research into collaborative parallel AI coding agents.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/cursor-nvidia-kernels/https://whataibuilt.com/project/cursor-nvidia-kernels/Kernels produced by Cursor's multi-agent system in a collaboration with NVIDIA, reported to reach a 38% geomean speedup on 235 Blackwell problems.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/one-agent-one-browser/https://whataibuilt.com/project/one-agent-one-browser/A from-scratch HTML/CSS browser in Rust, built in about three days by one human directing one Codex agent, with no third-party Rust crates.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/claudes-c-compiler/https://whataibuilt.com/project/claudes-c-compiler/A from-scratch, dependency-free C compiler in Rust, written by parallel Claude Code agents running Claude Opus 4.6, capable of building Linux 6.9 and other large C projects.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/jsse/https://whataibuilt.com/project/jsse/A from-scratch JavaScript engine in Rust that the author says was built entirely by Claude Code and became the first engine to pass 100% of test262 non-staging tests.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/vibesql/https://whataibuilt.com/project/vibesql/A Rust SQL database the authors describe as 100% AI-generated, built with Claude Code and the Loom orchestration tool, with public SQL conformance dashboards.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/vibix/https://whataibuilt.com/project/vibix/An experimental Rust x86_64 kernel built almost entirely by Claude and Cursor agents looping through plan, implementation, pull request, review, and merge.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/zeroweb/https://whataibuilt.com/project/zeroweb/An experimental cross-platform Rust browser whose authors say almost all product and engine code is written by AI, with a human limited to design, decisions, and verification.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/forgekernel/https://whataibuilt.com/project/forgekernel/A self-evolving GPU-kernel agent from OpenBMB, with generated CuTe/CUDA kernels released in-tree and a paper reporting wins against expert libraries and other kernel agents.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/kernelseek/https://whataibuilt.com/project/kernelseek/A question-driven CUDA kernel optimization agent that, according to its paper, produced dependency-free FlashAttention forward kernels faster than FA3 and FA4 on the authors' suites.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/machina/https://whataibuilt.com/project/machina/A modular RISC-V full-system emulator in Rust, presented as a human-and-agent collaboration using Claude and Codex.Wed, 11 Nov 2026 16:00:00 GMThttps://whataibuilt.com/project/fable-os/https://whataibuilt.com/project/fable-os/An Anthropic-announced experiment in which Claude Fable 5.2 coordinated more than 1,000 subagents over eight days to build a prototype operating system from an empty folder.Wed, 11 Nov 2026 16:00:00 GMT