
The fastest way to understand any codebase. Interactive. Visual. Narrated step by step. Part of @Principal_AI_
Joined January 2026
- Tweets407
- Following0
- Followers490
- Likes1.1K
Replying to @theo
Amazing work - 76 PRs since Monday.
See what shipped this week on the map, and by who: app.principal-ade.com/pingdo…
In honor of @JensenHuang joining X
NVIDIA/NemoClaw as a File City.
Structure, who built what, what shipped this week, and more.
Every codebase has a shape.
See structure, who built what, what shipped, what a PR is changing, and more.
Replying to @jack
Great work @jack — here's buzz as a File City map.
Explore the full codebase → app.principal-ade.com/block/…
See any codebase as a map.
Structure, who built what, what shipped this week, and what a PR is changing.
Replying to @cursor_ai
Curious how it compares to the original?
We loaded both repositories into File City so you can explore.
app.principal-ade.com/sqlite…
app.principal-ade.com/cursor…
FileCity Tour: pi
A comprehensive AI agent toolkit with interactive coding agent CLI, unified multi-provider LLM API, TUI/web UI libraries, and more.
github.com/earendil-works/pi
FileCity Tour: lexa
A fast local code intelligence for humans and AI agents. Turns any codebase into a portable, queryable graph for stable context, symbols, searches, audits, and safe edits via CLI + MCP.
github.com/anvia-hq/lexa
FileCity Tour: activegraph
An event-sourced reactive graph runtime for long-running agentic systems. Behaviors react to a shared graph instead of direct messaging; every change is traceable, runs are resumable, forkable, and diff-able via the event log.
github.com/yoheinakajima/act…
FileCity Tour: stainful
An open-source Stainless alternative. Generate idiomatic, fully-typed Python SDKs from OpenAPI specs + stainless.yml configs. Runs locally with auto-pagination, retries, typed errors, streaming, sync/async — zero migration, no SaaS.
github.com/stainlu/stainful



