A web app and Rust tool that turns a photo into an abstract mood video of slowly drifting, colorful orbs of light. Use it as a video background, a streaming standby screen, or a wallpaper—or blur the original photo to merely hint at it.
llll-ll
Planning Div. 42
Welcome to llll-ll.
Games and apps made by kako-jun. I'd be glad if you give them a try. All free.
- 2026-06-12 Read this first
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A spot-the-difference tool for any pair of images: snap or upload two pictures, line them up, and hunt for what changed. Keystone correction, a loupe, undo, and GIF export all run entirely in your browser via OpenCV.js.
A blazing-fast Zola blog theme inspired by Hiroshi Abe's legendarily quick homepage. With zero JavaScript and no external resources, it paints instantly, and you can fine-tune the look from config.toml alone.
A site that translates dense legal text into friendly Osaka dialect so it's actually readable. It spans five categories—from Japan's current laws to historical statutes, foreign law, and international treaties—and toggles between the original and the Osaka version in one click.
A Rust library and CLI for reveal animations that make terminal text slowly emerge. It offers two parts—a typewriter-style fade and a pulse—with zero dependencies, ready to drop into a pipe.
A CLI that drives many Git repositories at once from a single YAML config. Run ten commands like clone or pull across all of them in one go, with a TUI showing each repo's progress in real time. Written in Rust.
A site to post, play, and share soramimi—lyrics misheard as words in another language. Give a video URL with start/end times and your misheard text, and it plays back with karaoke-style subtitles like a TV segment. No sign-up, fully anonymous, just for fun.
A Hacker News–style link aggregator and discussion board for Japan's indie developers and startups. Posts, threaded comments, voting, and karma—all narrowed to the Japanese language and Japanese services.
A calculator puzzle game where you clear adjacent matching numbers. Chain them together using the four arithmetic operations. Three modes—calculator, practice, and endless—with score multipliers that climb through chains and setups.
A decentralized social network running on the Nostr protocol. No install, no sign-up—just open it in your browser. Your private key stays only on your device, and it ships with expressive extras like drawing and voice memos.
A tiny Lua library—about 150 lines—that brings debounce, throttle, and batch to Neovim. Zero external dependencies, with practical APIs like maxWait, cancel, and flush.
A plugin that splits Neovim's undo—which normally lumps a whole insert session into one—into finer chunks by time and word boundaries. It learns your typing habits and adjusts automatically, and serves as a real-world demo of chillout.nvim.
A site that auto-detects Japanese holidays and lets you build a business-hours calendar in three minutes. Edit quickly by drag and drop, then share straight to Instagram or LINE. Built to save time for hardworking solo shop owners.
The simplest Markdown note app, syncing straight to GitHub with no server in between. A custom merge keeps edits from multiple devices safely in line, and your data always stays under your own control.
A neofetch-style system info tool built only for RISC-V. It shows ISA extensions and hart counts, ships 147 extensions sorted by category, and pairs nicely with fastfetch. It won't run on any other architecture. Written in Rust.
A Chrome extension that saves FF14 Lodestone blog entries—which have no export feature—wholesale as Markdown and ZIP. It keeps the text, images, comments, and even like counts, and covers all five regions plus your friends' posts.
A CLI that goes beyond “Binary files differ” to show meaningful diffs between ML model files. With 11 kinds of automatic analysis—learning rate, loss, and more—and tensor-statistics comparison, it can also emit JSON for CI/CD.
A CLI that uncovers fraud and anomalies hiding in your data using five statistical laws like Benford's and Pareto. It works for everything from accounting and election fraud detection to sales analysis and quality control, judging risk with ASCII charts. Written in Rust.
Unlike traditional diff, which flags every line just because the key order changed, this CLI understands structure and shows only what truly changed. It auto-detects six formats like JSON and YAML, and can compare directories recursively.
Five building blocks that bring back 1990s web culture: hit counters, likes, a guestbook, rankings, and more. With a simple sign-up-free GET API and Web Components, you can drop them into any static site in minutes.
A site that gathers listings of cats and dogs sheltered by local governments across Japan and helps them find new families. Urgency-sorted galleries and daily automatic scraping power it, starting in Ishikawa and spreading nationwide.
A site for learning the grammatical gender of nouns across eight languages. Search over 4,600 words in English or the target language, with meanings and mnemonics included. It also has gender-guessing quizzes, pronunciation playback, and an 11-language UI.
A web app that shows the bass fretboard for practice. See what role the chord or note you're playing plays within a song or chord. It reveals fingerings and mutes that tabs leave out, and you can share the fretboard as an image.
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