Hi there 👋 I am a full-stack developer passionate about UI/UX, static typing, and software testing.

My projects:

• MemoCard - Award-winning Telegram mini app for improving memory with spaced repetition. 3k+ users
• mobx-log - Logging library for MobX. 15k+ downloads per month, >200000 total downloads

My contributions to Open Source:

• mobx (⭐27.2k+️) - 23 PRs. Last PR - Replace Circle CI with GitHub CI (merged)
• phpstan (⭐12.5k+️) - Detect enum duplicated values (merged)
• wavesurfer.js (⭐8.2k+️) - Waveform with rounded bars (merged)
• ts-essentials (⭐3.6k+️) - Simplify Merge type (merged)
• botman (⭐6.0k+️) - Add PSR-11 ContainerInterface (merged)
• construct-js (⭐1.4k+️) - Use TS assertion signature to avoid type casting (merged)
• mobx-angular (⭐481) - 10 PRs. Last PR - Replace Karma with Jest, run tests on CI (merged)

Latest blog posts:

• How I built a project for myself and won a prize from Telegram
• Configure multiple entry points for Create React App without the eject
• A simple Mobx under 50 LOC to understand observer pattern
• Display calendar using SQL
• Configure HTTPS for wildcard domains with Nginx and Certbot