Source: https://seerepo.com/compare/block/buzz/vs/rust-lang/cargo
Markdown source: https://seerepo.com/compare/block/buzz/vs/rust-lang/cargo.md
Description: buzz and cargo share 7 technologies: rusqlite, SQLite, hmac, pulldown-cmark, schemars, tracing, and tracing-subscriber. Both are written in Rust.

# buzz vs cargo

buzz and cargo share 7 technologies: rusqlite, SQLite, hmac, pulldown-cmark, schemars, tracing, and tracing-subscriber. Both are written in Rust.

- [block/buzz](https://seerepo.com/r/block/buzz): A hive mind communication platform
- [rust-lang/cargo](https://seerepo.com/r/rust-lang/cargo): The Rust package manager

## What they share and what sets them apart

- In common: rusqlite, SQLite, hmac, pulldown-cmark, schemars, tracing, tracing-subscriber
- Only in buzz: Flutter, flutter_hooks, axum, tower, psycopg, sqlx, Redis, shared_preferences, flutter_secure_storage, moka, rust-s3, lru, Tokio, Vite, React, Tauri, @tanstack/react-router, objc2-app-kit, objc2-foundation, @tauri-apps/api, TanStack, appcompat, scrollable_positioned_list, video_player, highlight, cupertino_icons, jsonwebtoken, keyring, local_auth, ort-sys, rmcp, ort, tokenizers, image, image_picker, flutter_svg, infer, photo_manager, blurhash, imagesize, mobile_scanner, mp4, quick-xml, symphonia, webp, Pydantic, metrics, k8s-openapi, metrics-exporter-prometheus, tracing-opentelemetry, kube, OpenTelemetry, opentelemetry-otlp, Tailwind CSS, class-variance-authority, @fontsource-variable/inter, @fontsource/jetbrains-mono, tailwind-merge, sonner, motion, tiptap, Radix UI, emoji-mart, alacritty_terminal, virtua, tauri-plugin-dialog, dnd-kit, react-diff-view, @tanstack/react-virtual, @tauri-apps/plugin-notification, embla-carousel-react, notify-rust, objc2-user-notifications, react-day-picker, tauri-plugin-notification, tauri-plugin-window-state, tiptap-markdown, webkit2gtk, window-vibrancy, Lucide, ed25519-dalek, earshot, MediaPipe, yaml, png, react-markdown, shiki, mdast-util-from-markdown, plist, qrcode, remark-breaks, remark-gfm, upng-js, zip, Zod, tauri-apps
- Only in cargo: anstyle, http-auth, handlebars, tracing-chrome

## Side by side

| | buzz | cargo |
|---|---|---|
| Size | 1,826,129 lines written, 3,453 code files | 351,287 lines written, 327 code files |
| Who writes it | 17.2% of its commits signed by AI. With Claude Code, Codex, Cursor, and Amp | 0% of its commits signed by AI. With Codex |
| Activity | Last push November 6, 2026, 3,348 commits, 36,778 stars | Last push November 7, 2026, 16,021 commits, 15,685 stars |
| Tests | 1,760 test files. 44.8% of its code files have a test that imports them | 1,035 test files. 2.8% 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, buzz or cargo?

buzz, with 1,826,129 lines written; cargo has 351,287.

The proof: [block/buzz's code at commit 96af488](https://github.com/block/buzz/tree/96af488d968a1ae9d961c2132bea27822735f8da)

### Which has more GitHub stars, buzz or cargo?

buzz, with 36,778 stars; cargo has 15,685.

The proof: [block/buzz on GitHub](https://github.com/block/buzz)

### Which has more tests, buzz or cargo?

buzz, with 1,760 test files; cargo has 1,035.

The proof: [block/buzz's code at commit 96af488](https://github.com/block/buzz/tree/96af488d968a1ae9d961c2132bea27822735f8da)

### Which was updated more recently, buzz or cargo?

cargo: its last push was on November 7, 2026, and buzz's on November 6, 2026.

The proof: [rust-lang/cargo's commits on GitHub](https://github.com/rust-lang/cargo/commits)

### Which has more commits signed by AI, buzz or cargo?

buzz: an AI signed 17.2% of its commits, with Claude Code, Codex, Cursor, and Amp.

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

## Sources

- block/buzz: Read on November 6, 2026, at commit 96af488 (https://github.com/block/buzz/tree/96af488d968a1ae9d961c2132bea27822735f8da)
- rust-lang/cargo: Read on November 8, 2026, at commit c82e769 (https://github.com/rust-lang/cargo/tree/c82e769730a4c8559076964b4ebeed021f4aa96e)

## 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.