Hey hunters! 👋
I built git-tulkun because I was tired of boilerplate README widgets. I wanted a profile mascot with authentic visual progression, biological lore, and real craftsmanship.
A few interesting technical takeaways from building this in Rust:
Zero Spritesheets: Every single frame is computed procedurally using signed distance fields (SDFs) and cylindrical normal lighting quantized through a 4×44\times44×4 Bayer ordered dither matrix. This keeps the binary small (~6MB with zero runtime bloat) and allows a single math pipeline to draw all 5 life stages and 3 camera perspectives (side, dive, and top).
Solving the Git Bloat Problem: Baking daily contribution numbers into binary GIFs will bloat a repository's .git folder in months. I solved this by shipping an automatic orphan output branch publisher (similar to the classic snk action), isolating binary diffs completely from your main branch.
The January 1st Reset & Rolling Mode: Watching your whale reset to a tiny calf every January 1st turns your GitHub contribution graph into a fun, gamified annual companion. If you prefer continuous progression without seasonal resets, there is also a trailing 365-day rolling window option (window: rolling).
🐋 Try your username live right now: https://pramudithan.github.io/git-tulkun/
Check out the open-source repo at https://github.com/PramudithaN/git-tulkun.
I’d love to hear your feedback: What stage is your whale currently at, and which camera angle looks best on your profile?

git-tulkun

Interactive GitHub README Whale Generator

Interactive GitHub README Whale Generator