#crystal
4 posts
2026 - March
2 posts2016 - July
1 post2016 - May
1 post2026 - March
2 postsPorting 10K Lines of Python to Crystal with Claude: easy-subtitle
I asked Claude to port Subservient to Crystal with feature parity and got easy-subtitle in under 40 minutes: 2,516 lines, 76 tests, and a 6 MB static binary with no Python runtime.
Crystal and a Smart FFmpeg Wrapper Built in 3 Hours | easy-ffmpeg
I wanted to convert videos without memorizing FFmpeg flags. Out came a smart CLI in Crystal with presets, interactive mode and static compilation for Linux and macOS, in 3 hours of vibe coding.
2016 - July
1 postTrying to match C-based Fast Blank with Crystal
Rewriting Fast Blank in Crystal and comparing it with C and Ruby, the author finds string copying expensive. For this trivial algorithm, the C version remains the best choice.
2016 - May
1 postFlirting with Crystal, a Rubyist Perspective
Evaluating Crystal from a Rubyist’s perspective, the author highlights its familiar syntax, fast native binaries, and cooperative concurrency for I/O, while making clear it doesn’t replace Ruby or Rails.