Source: https://seerepo.com/compare/clockworklabs/SpacetimeDB/vs/trycua/cua
Markdown source: https://seerepo.com/compare/clockworklabs/SpacetimeDB/vs/trycua/cua.md
Description: SpacetimeDB and cua share 4 technologies: React, Vite, axum, and Postgres. Both are written in Rust.

# SpacetimeDB vs cua

SpacetimeDB and cua share 4 technologies: React, Vite, axum, and Postgres. Both are written in Rust.

- [clockworklabs/SpacetimeDB](https://seerepo.com/r/clockworklabs/SpacetimeDB): Development at the speed of light
- [trycua/cua](https://seerepo.com/r/trycua/cua): Scale computer-use 2.0 with open-source drivers, cross-OS sandboxes, and benchmarks for training, evaluation, and data generation.

## What they share and what sets them apart

- In common: React, Vite, axum, Postgres
- Only in SpacetimeDB: SQLite
- Only in cua: FastAPI, Flask, PostHog, Sentry, Claude

## Side by side

| | SpacetimeDB | cua |
|---|---|---|
| Size | 645,010 lines written, 1,625 code files | 2,541,798 lines written, 3,520 code files |
| Who writes it | 0.6% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, and Qwen Code | 27.8% of its commits signed by AI. With Claude Code, Codex, GitHub Copilot, CodeRabbit, Factory, and Cursor |
| Activity | Last push November 3, 2026, 3,785 commits, 25,519 stars | Last push November 2, 2026, 5,587 commits, 31,513 stars |
| Tests | 934 test files. 15.6% of its code files have a test that imports them | 1,988 test files. 26.8% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, SpacetimeDB or cua?

cua, with 2,541,798 lines written in 3,520 code files; SpacetimeDB has 645,010 in 1,625.

The proof: [trycua/cua's code at commit e6a88bf](https://github.com/trycua/cua/tree/e6a88bf12766b6ab85e4ab51aac6e5007588e747)

### Which has more GitHub stars, SpacetimeDB or cua?

cua, with 31,513 stars; SpacetimeDB has 25,519.

The proof: [trycua/cua on GitHub](https://github.com/trycua/cua)

### Which has more tests, SpacetimeDB or cua?

cua, with 1,988 test files; SpacetimeDB has 934.

The proof: [trycua/cua's code at commit e6a88bf](https://github.com/trycua/cua/tree/e6a88bf12766b6ab85e4ab51aac6e5007588e747)

### Which was updated more recently, SpacetimeDB or cua?

SpacetimeDB: its last push was on November 3, 2026, and cua's on November 2, 2026.

The proof: [clockworklabs/SpacetimeDB's commits on GitHub](https://github.com/clockworklabs/SpacetimeDB/commits)

### Which has more commits signed by AI, SpacetimeDB or cua?

cua: an AI signed 27.8% of its commits, with Claude Code, Codex, GitHub Copilot, CodeRabbit, Factory, and Cursor; in SpacetimeDB, 0.6%.

The proof: [the commits each tool signed in trycua/cua](https://seerepo.com/r/trycua/cua/ai)

## Sources

- clockworklabs/SpacetimeDB: Read on November 3, 2026, at commit 0028d79 (https://github.com/clockworklabs/SpacetimeDB/tree/0028d79e0b722f8f9d9dbd91da8d998fb458e48e)
- trycua/cua: Read on November 2, 2026, at commit e6a88bf (https://github.com/trycua/cua/tree/e6a88bf12766b6ab85e4ab51aac6e5007588e747)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.