Source: https://seerepo.com/compare/stalwartlabs/stalwart/vs/trycua/cua
Markdown source: https://seerepo.com/compare/stalwartlabs/stalwart/vs/trycua/cua.md
Description: stalwart and cua share 8 technologies: rusqlite, tokio-postgres, Tokio, jsonwebtoken, argon2, hkdf, pbkdf2, and zip. Both are written in Rust.

# stalwart vs cua

stalwart and cua share 8 technologies: rusqlite, tokio-postgres, Tokio, jsonwebtoken, argon2, hkdf, pbkdf2, and zip. Both are written in Rust.

- [stalwartlabs/stalwart](https://seerepo.com/r/stalwartlabs/stalwart): All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).
- [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: rusqlite, tokio-postgres, Tokio, jsonwebtoken, argon2, hkdf, pbkdf2, zip
- Only in stalwart: deadpool-postgres, mysql_async, rdkafka, rocksdb, Redis, quick_cache, async-nats, r2d2, azure_storage_blob, Kafka, ldap3, azure_identity, pwhash, scrypt, totp-rs, jieba-rs, imagesize, mail-parser, mail-builder, quick-xml, infer, azure_core, sd-notify
- Only in cua: axum, uvicorn, FastAPI, Flask, aws-sdk-s3, postgres-native-tls, SQLite, Postgres, rusty-leveldb, Claude, Hugging Face, Sentry, PostHog, anyio, pygame, tower, objc2-foundation, objc2-app-kit, 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, objc2-quartz-core, pywebview, x11rb, core-graphics, tiny-skia, wayland-client, x11, xkbcommon, matplotlib, objc2-metal, Rich, winit, hmac, keyring, aws-sdk-sts, objc2-local-authentication, OpenAI, litellm, torch, cua-agent, torchvision, datasets, rmcp, easyocr, Ultralytics, supervision, ort, safetensors, html5lib, odfpy, zune-core, pillow, image, lxml, beautifulsoup4, backhand, openpyxl, pdfplumber, png, python-docx, jinja2, jsonc-parser, plist, python-pptx, Yams, schemars, 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

| | stalwart | cua |
|---|---|---|
| Size | 637,196 lines written, 1,585 code files | 2,816,396 lines written, 3,906 code files |
| Who writes it | 0% of its commits signed by AI | 29.5% of its commits signed by AI. With Claude Code, Codex, GitHub Copilot, CodeRabbit, Factory, and Cursor |
| Activity | Last push November 4, 2026, 1,836 commits, 15,779 stars | Last push November 7, 2026, 5,960 commits, 31,935 stars |
| Tests | 38 test files. 1.4% 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, stalwart or cua?

cua, with 2,816,396 lines written; stalwart has 637,196.

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

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

cua, with 31,935 stars; stalwart has 15,779.

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

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

cua, with 2,216 test files; stalwart has 38.

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

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

cua: its last push was on November 7, 2026, and stalwart's on November 4, 2026.

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

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

cua: an AI signed 29.5% of its commits, with Claude Code, Codex, GitHub Copilot, CodeRabbit, Factory, and Cursor.

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

## Sources

- stalwartlabs/stalwart: Read on November 7, 2026, at commit 8b32686 (https://github.com/stalwartlabs/stalwart/tree/8b32686532d34623e9ce8e1237cf2bed9554af38)
- 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.