Education and computer science.

Language learning through structured translation. Hiisi translates a sentence, explains its grammar word by word, and turns the result into spaced-repetition flashcards.

Hosted mailboxes for programs. Inbound mail becomes a small REST API and webhooks, so software can receive email without running mail infrastructure.

A system shell inside a live Clozure Common Lisp image. Unix commands, Lisp forms, readable pipelines, and a Unicode-aware line editor share one prompt.

A terminal programming agent inside a live SBCL image. It owns its tools, memory, self-modification, checkpoints, and recovery in Common Lisp.

A Wayland color temperature control daemon in Common Lisp. Adjust the blue-light filter from scripts, keybindings, or a keyboard knob.

A fast Common Lisp RAW processor for Olympus PEN-F and OM-1 files. One core drives a CLI and an FLTK GUI with DaVinci-style node grading.

A small but funny complete no-types programming language, with a REPL, source runner, image compiler, module loading, examples, tests, and (janky) editor support.