A game and render engine in Rust, part of PITO MD: a live renderer that draws 4K in 4.4 ms a frame, a GPU path tracer with its own denoiser, physics, sound, input, mods and a scene editor, with scenes as plain TOML
The top of a PITO MD terminal app: numbered sections in two nested rows, drill-in with a breadcrumb, abbreviating to fit. A full header draws in 8.7 µs with no allocation.
SQLite store mechanics for PITO MD apps (not Apple StoreKit): long jobs written in slices so the app's writes waited at most 241 ms during a 4M-row job, ordered migrations, daily gzip backups, per-app folders
Exact, deterministic recordings of terminal apps: every frame at 30, 60 or 120 fps up to 4K (1,197 frames for a 10 s clip at 120 fps), byte-identical re-renders. A VHS alternative, part of PITO MD.
The app shell for PITO MD terminal apps: one ratatui crate with a 120 fps loop that draws a whole frame in 0.07-0.31 ms, a header, footer, hourglass and list, modals, toasts, an activity band, a log viewer and headless dumps
Selectable list rows for ratatui apps, 0.3 ms a frame for 20,000 rows with no allocations and 70x faster than a Table built from every row: columns that drop by priority, sections, ranges, lazy rows, a scrollbar and a count
One TOML format for 3D scenes, prefabs and materials, shared by the PITO MD engine and editor: resolves a 1,000-object scene in 25 ms, errors at file, line and column, stable ids, migrations, and a writer that keeps comments. Three dependencies, MIT.
The bottom of a PITO MD terminal app, for ratatui: key hints that fit the width, a notice line, a y/n confirm, a one-line input, the quit guard and the version. 8.4 µs a hint row, zero allocations, 3 dependencies.
On-device text embeddings in Rust: EmbeddingGemma-300m on the GPU, 6.3× faster than the CPU on a batch, offline from a sha256-pinned model, with a machine probe. Part of PITO MD.
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