Source: https://seerepo.com/compare/jub0t/Concat/vs/trycua/cua
Markdown source: https://seerepo.com/compare/jub0t/Concat/vs/trycua/cua.md
Description: Concat and cua share 11 technologies: objc2-app-kit, objc2-foundation, Tokio, objc2-metal, objc2-quartz-core, tiny-skia, wayland-client, ort, image, png, and schemars. Both are written in Rust.

# Concat vs cua

Concat and cua share 11 technologies: objc2-app-kit, objc2-foundation, Tokio, objc2-metal, objc2-quartz-core, tiny-skia, wayland-client, ort, image, png, and schemars. Both are written in Rust.

- [jub0t/Concat](https://seerepo.com/r/jub0t/Concat): Beta: The truly free, open-source, local-first, cross-platform video editor. Scriptable through a JSON-RPC API & MCP.
- [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: objc2-app-kit, objc2-foundation, Tokio, objc2-metal, objc2-quartz-core, tiny-skia, wayland-client, ort, image, png, schemars
- Only in Concat: Jetpack Compose, clru, core-ktx, fontdb, write-fonts, i-slint-core-macros, wgpu-hal, Slint, wgpu, skia-safe, i-slint-core, glow, glutin, i-slint-common, lyon_path, rfd, softbuffer, tokenizers, whisper-rs, read-fonts, resvg, rustybuzz, ttf-parser, log, android_logger
- Only in cua: axum, uvicorn, FastAPI, Flask, aws-sdk-s3, postgres-native-tls, rusqlite, tokio-postgres, SQLite, Postgres, rusty-leveldb, Claude, Hugging Face, Sentry, PostHog, anyio, pygame, tower, AIOHTTP, NIOConcurrencyHelpers, Electron, react-native, React, Expo, @react-native-async-storage/async-storage, expo-secure-store, Vite, TanStack, Tauri, @tauri-apps/api, @earendil-works/chord, fontdue, pywebview, x11rb, core-graphics, x11, xkbcommon, matplotlib, Rich, winit, hmac, hkdf, jsonwebtoken, keyring, aws-sdk-sts, pbkdf2, argon2, objc2-local-authentication, OpenAI, litellm, torch, cua-agent, torchvision, datasets, rmcp, easyocr, Ultralytics, supervision, safetensors, html5lib, odfpy, zune-core, pillow, lxml, beautifulsoup4, backhand, openpyxl, pdfplumber, python-docx, jinja2, jsonc-parser, plist, python-pptx, Yams, zip, jsonschema, Pydantic, botocore, tracing, tracing-subscriber, github.com/sirupsen/logrus, bollard, boto3, psutil, tracing-appender, sax, react-native-safe-area-context, expo-image, react-native-gesture-handler, react-native-keyboard-controller, react-native-reanimated, expo-status-bar, react-native-webview, Shopify, @expo/vector-icons, expo-symbols, expo-auth-session, expo-local-authentication, Tailwind CSS, class-variance-authority, tailwind-merge, Base UI, @legendapp/list, Lucide, uqr, tauri-plugin-dialog, tauri-plugin-notification, tauri-apps, @earendil-works/pi-ai, ink, sharp, pino, motion, Radix UI, lottie-react, react-markdown, remark-gfm

## Side by side

| | Concat | cua |
|---|---|---|
| Size | 165,559 lines written, 221 code files | 2,816,396 lines written, 3,906 code files |
| Who writes it | 66.1% of its commits signed by AI. With Claude Code, Cursor, and Codex | 29.5% of its commits signed by AI. With Claude Code, Codex, GitHub Copilot, CodeRabbit, Factory, and Cursor |
| Activity | Last push November 8, 2026, 1,280 commits, 15,408 stars | Last push November 7, 2026, 5,960 commits, 31,935 stars |
| Tests | 6 test files. 6.8% of its code files have a test that imports them | 2,216 test files. 28.5% 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, Concat or cua?

cua, with 2,816,396 lines written; Concat has 165,559.

The proof: [trycua/cua's code at commit bfded77](https://github.com/trycua/cua/tree/bfded77f1cc7d04ba0bd23b0ef2db0bb4eee0ebb)

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

cua, with 31,935 stars; Concat has 15,408.

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

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

cua, with 2,216 test files; Concat has 6.

The proof: [trycua/cua's code at commit bfded77](https://github.com/trycua/cua/tree/bfded77f1cc7d04ba0bd23b0ef2db0bb4eee0ebb)

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

Concat: its last push was on November 8, 2026, and cua's on November 7, 2026.

The proof: [jub0t/Concat's commits on GitHub](https://github.com/jub0t/Concat/commits)

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

Concat: an AI signed 66.1% of its commits, with Claude Code, Cursor, and Codex; in cua, 29.5%.

The proof: [the commits each tool signed in jub0t/Concat](https://seerepo.com/r/jub0t/Concat/ai)

## Sources

- jub0t/Concat: Read on November 8, 2026, at commit c6be3e0 (https://github.com/jub0t/Concat/tree/c6be3e05493759b9329de01bda27b4686bf1efa0)
- trycua/cua: Read on November 7, 2026, at commit bfded77 (https://github.com/trycua/cua/tree/bfded77f1cc7d04ba0bd23b0ef2db0bb4eee0ebb)

## 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.