Software Architect, Full Stack Engineer, Podcaster https://xitter.cf/t.co/X9Yzg5rC1I https://xitter.cf/t.co/YISrVHNm9p
Kyiv, Ukraine
Joined January 2009
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lego-scanner.leopard.in.ua/ L-Scan: LEGO Minifigure Data Matrix Scanner. Fully client-side Progressive Web Application (#PWA) designed to identify blind-boxed #LEGO Collectible Minifigures (Series 25 and newer) instantly by decoding the tiny Data Matrix symbols printed on box bottoms
leopard.in.ua/2026/09/25/sma… Smart avatar cropping in rails: face detection with YuNet, ONNX runtime and ActiveStorage #ruby #rails #vision #yunet #cnn #neural_network
leopard.in.ua/2026/06/30/l-s… L-Scan: Under the Hood of a WASM & Morphological Edge-Healed Lego Minifigures Scanner #lego #minifigures #webdev #pwa #wasm
leopard.in.ua/2026/05/16/qpd… QPDF WASM for client-side PDFs and TreRegex for fuzzy matching in Ruby and Node.js #regex #fuzzy_regex #tre #qpdf #wasm #webdev
github.com/le0pard/tre_regex - Ruby wrapper and github.com/le0pard/tre-regex node.js wrapper for TRE approximate (fuzzy) regular expression library. It's allowing you to search for a pattern within a larger body of text while permitting a configurable number of errors #ruby #js #nodejs
re2js just got a lot faster at boolean matching. 🚀 I stripped out the overhead so matches() hits the DFA fast-path directly. Also added test() and testExact() for zero-allocation matching that bails on ReDoS traps instantly (no slow exceptions). re2js.leopard.in.ua/ #redos
Just updated PGTune. The math was showing its age, so it now supports PostgreSQL 18's new Async I/O, NVMe storage profiles, and scales memory limits based on whether your DB actually fits in RAM. Check it out: pgtune.leopard.in.ua/ #postgresql #pgtune #tunning #database
github.com/le0pard/json_mend JsonMend is a robust Ruby gem designed to repair broken or malformed JSON strings. It is specifically optimized to handle common errors found in JSON generated by Large Language Models (LLMs), such as missing quotes, trailing commas, etc #ruby #rails #json
leopard retweeted
"Active development [of jemalloc] has come to an end" - Jason Evans
This doesn't really change my usage of jemalloc in the short term (the current release is 3 years old and works great). But in 1-3+ years we'll probably have a different/better allocator option for Ruby.
Release that started using re2js.leopard.in.ua/ Thanks!
GitHub Desktop 3.3 – Repository rules github.blog/changelog/2023-0…
re2js.leopard.in.ua/ RE2JS Playground - RE2JS is the JavaScript port of RE2, a regular expression engine that provides linear time matching #js #javascript #regex #re2 #regexengine
github.com/le0pard/re2js RE2JS is the JavaScript port of RE2, a regular expression engine that provides linear time matching #regex #re2 #javascript
Google, Azure, Twitter, Facebook, Heroku Oauth - just use it, allow to use API, no billing required
Shopify Oauth - billing API required and plan per Shopify shop (even if you don't need to be in their marketplace)
Worst requirements ever for integration
sql-joins.leopard.in.ua/ moved to #sveltekit and now have 100 points from Lighthouse (mobile check)
github.com/nikolaydubina/go-… go-binsize-treemap: Render a Visualization of Go Executable Space Usage #golang
leopard retweeted
Your clients tend to open many tabs, and you have to deal with excess WebSocket connections? This library by @leopard_me allow you to share a single connection between a browser tabs:
github.com/le0pard/cable-sha…
P.S. And works with anycable-client out-of-the-box.
