cmux: the open source terminal built for coding agents
Native macOS Ghostty-based terminal with vertical tabs, notifications, and built-in browser
Details
- External ID
- 98405
- Source
- YC
- Company
- cmux
- Product
- cmux: the open source terminal built for coding agents
- Website domain
- cmux.com
- Launched
- March 3, 2026
- Cohort
- Summer 2024
- Upvotes
- 735
- Upvotes percentile
- 0.9891304347826086
- Tags
- Developer Tools, Open Source, AI
- Fetched at
- Oct. 1, 2026, 1 a.m.
- Updated at
- Oct. 1, 2026, 1 a.m.
Enrichment
- Theme
- coding agent interfaces and environments
- Vertical
- —
- Function
- Dev tools
- Audience
- Developer
- AI stance
- AI feature
- Project type
- Hobby / open-source project
- Normalized one-liner
- terminal for coding agents
- Manually corrected
- False
Could you build this?
Partial A web wrapper or simple Electron terminal can be vibe-coded, but a high-performance native macOS desktop terminal built on top of libghostty with native process multiplexing requires native systems programming.
What it would actually take: This app requires native macOS engineering using Swift/Objective-C and Zig/C to integrate libghostty's rendering engine and Metal acceleration directly into an AppKit GUI. Multiplexing multiple AI agent sub-processes requires custom POSIX pseudo-terminal (PTY) management, IPC event monitoring, and embedded WKWebView integration.
Competitors
Other products that read as similar to this one — 1951 launches clear the similarity bar, closest 8 shown.
Attention rank: #19 of 1952 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 123 days after the earliest competitor.
- Hazzel — a tiny, transparent coding agent for your terminal · hn · 2026-09-15 · 6 upvotes · similarity 0.76
- alter-zero · github · 2026-09-13 · 15 upvotes · similarity 0.70
- Sidekick · hn · 2026-06-06 · 12 upvotes · similarity 0.69
- Calyx · hn · 2026-03-12 · 28 upvotes · similarity 0.69
- ctx, a hackable desktop workbench for coding agents · hn · 2026-06-17 · 5 upvotes · similarity 0.68
- Clawk · hn · 2026-07-13 · 226 upvotes · similarity 0.67
- Modivue · github · 2026-09-13 · 17 upvotes · similarity 0.67
- Pie · github · 2026-09-15 · 58 upvotes · similarity 0.66
Other launches for this product
- No other launches for this product.