Open source repo

What's inside trycua/cua

trycua/cua is a Rust repo with 2,541,798 lines written in 3,520 files. cua is built with React, Vite, FastAPI, and 2 more and uses Postgres, PostHog, Sentry, and Claude. AI signed 27.8% of the 5,587 commits of cua.

Its description on GitHub: “Scale computer-use 2.0 with open-source drivers, cross-OS sandboxes, and benchmarks for training, evaluation, and data generation.”

RustMIT31,513

Read on November 2, 2026, at commit e6a88bf.

What the card proved: what it’s built with on the left, what it uses on the right.

See each one with its proof

Its folders

TechnologiesWhat is cua built with?cua is built with React, Vite, FastAPI, and 2 more and uses Postgres, PostHog, Sentry, and Claude.

+1 Who writes itHow much of cua did AI write?27.8%AI signed 27.8% of the 5,587 commits of cua.

In figures

lines written: 2,541,798; The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
files: 3,520; The product’s, not counting tests.
test files: 1,988; The files that test the code.
technologies: 9; Each one with the file and line that prove it.

SeeRepo read its code facts-only: no AI, and none of its code is kept.

Frequently asked questions

What is trycua/cua?

trycua/cua is a Rust repo with 2,541,798 lines written in 3,520 files. Its description on GitHub: “Scale computer-use 2.0 with open-source drivers, cross-OS sandboxes, and benchmarks for training, evaluation, and data generation.”

The proof: its page on GitHub

What is cua built with?