@mitsuhiko
Software developer and Open Source nut. Creator of the Flask framework. Founder of @earendil-works. Other things of interest: @pallets and @getsentry
24 following
Every leaf is a headline number from Armin Ronacher’s public GitHub. The canopy fills out as the work grows - sway and all.
Data from GitHub API · refreshed in real time
Based on public GitHub activity · how this is calculated
Rust is the largest language share across analyzed repositories, at 49%.
High confidence
Public visibility is broadly distributed across analyzed repositories rather than concentrated in one or two projects.
Medium confidence
Public GitHub activity is implementation-heavy: commits account for 91% of tracked contribution activity.
Medium confidence
Most analyzed repositories (25 of 40) show no public activity in over a year.
Medium confidence
This analysis covers 40 of 205 public repositories (20%); broader totals may differ.
High confidence
Signals from analyzed public data
Strong
Developing
Developing
Needs work
Needs work
A skim of public evidence, not a hiring judgement
Largest language shares across analyzed repositories
Analyzed repositories rated established or maintained
Public pull requests and code reviews in the trailing year
Summed across analyzed repositories
Calendar months with at least one tracked contribution
Strongest signals
Armin Ronacher maintains a public GitHub presence built primarily around Rust, which accounts for roughly 49% of their committed code, alongside Go and TypeScript. The profile lists 205 public repositories that have attracted 23,371 stars, led by agent-stuff at 3,152. Over the past year they recorded 12,544 contributions, including a longest run of 298 consecutive active days. Armin Ronacher has been on GitHub since 2008 and is followed by 26,216 developers.
This overview is generated from Armin Ronacher’s public GitHub activity at the time of the last refresh. Figures cover public repositories and the trailing twelve months of contributions.
Add topics to agent-stuff
High impactagent-stuff is pinned but has no topic tags, making its stack harder to identify.
agent-stuff →Add topics to pipsi
Low impactpipsi has no topic tags, making its technology harder to discover.
pipsi →Add topics to pluginbase
Low impactpluginbase has no topic tags, making its technology harder to discover.
pluginbase →Add topics to self-replace
Low impactself-replace has no topic tags, making its technology harder to discover.
self-replace →How these are calculated: see the methodology page .
These are commands I use with agents, mostly Claude
A snapshot testing library for rust
MiniJinja is a powerful but minimal dependency template engine for Rust compatible with Jinja/Jinja2
pip script installer
A high level diffing library for rust based on diffs
A simple but flexible plugin system for Python.
Utility library that helps to implement processes that replace themselves
OAuth Support for Flask
Development helper utility for helping with auto reloading for projects supporting systemd socket activation
The Python micro framework for building web applications.
AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI
MiniJinja is a powerful but minimal dependency template engine for Rust compatible with Jinja/Jinja2
A very fast and expressive template engine.
Python composable command line interface toolkit
These are commands I use with agents, mostly Claude
These are commands I use with agents, mostly Claude
A snapshot testing library for rust
MiniJinja is a powerful but minimal dependency template engine for Rust compatible with Jinja/Jinja2
pip script installer
A high level diffing library for rust based on diffs
A simple but flexible plugin system for Python.
Public visibility is broadly distributed across many analyzed repositories.
Leading repository: agent-stuff (3,152 stars, 23,371 total across analyzed repositories)
Derived from repository languages and topics - horizontal bars, never a pie.
README, contributing-guide and GitHub Actions badges below are detected by exact filename on each repository’s default branch - they report presence, not quality.
Deine Projekte und Fähigkeiten sind bereits aus GitHub übernommen. Ergänze, was GitHub nicht veröffentlicht - Kontaktdaten, Berufserfahrung und Ausbildung - und exportiere ein einseitiges, ATS-taugliches PDF.
Alles, was du eintippst, bleibt in diesem Browser (localStorage). Es wird nichts hochgeladen.
| Name | Language | Stars | Forks | Size | Updated |
|---|
No repositories match those filters.
Best coding day: Tue
Created the @mitsuhiko account.
Published classy, the oldest repository still on the account.
classy is the earliest-created repository to have earned stars.
python-modernize was the 10th public repository created.
pi-llamacpp is the most recently created repository.
6,177 contributions recorded in 2026, more than any other year on record.
Your GitHub career, year by year.
→Started with Python.
Went deeper into Python.
Went deeper into Python.
Shifted from Python to JavaScript.
Shifted from JavaScript to Python.
Went deeper into Python.
Shifted from Python to Rust.
Shifted from Rust to Go.
Shifted from Go to Rust.
Shifted from Rust to CSS.
Shifted from CSS to Rust.
Shifted from Rust to Go.
Shifted from Go to TypeScript.
Built from mitsuhiko’s public, non-fork repositories. Star totals reflect current counts, not historical snapshots.
7 / 9 unlocked
The primary languages of repositories created each year.
Repositories created per year, and the running total.
Built automatically from repository languages and topics.