Echo, an iOS SSH+mosh client built on Ghostty
Details
- External ID
- 47064787
- Source
- HN
- Company
- —
- Product
- Echo, an iOS SSH+mosh client built on Ghostty
- Website domain
- replay.software
- Launched
- Feb. 18, 2026
- Cohort
- —
- Upvotes
- 122
- Upvotes percentile
- 0.9097035040431267
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Enrichment
- Theme
- systems tools and desktop utilities
- Vertical
- —
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- ios ssh client built on ghostty
- Manually corrected
- False
Could you build this?
No Creating a high-performance native iOS terminal client supporting SSH, Mosh UDP state sync, and Metal-accelerated terminal rendering is an advanced systems-programming effort.
What it would actually take: Requires building an iOS app with Swift and Metal to embed the Zig-based Ghostty terminal engine via C-FFI. It requires low-level networking implementations of libssh2 and the Mosh protocol (SSP state synchronization over UDP), along with custom mobile virtual keyboard input and iOS background execution handlers. Deep expertise in graphics rendering engines, C/Zig cross-compilation for iOS, and network protocol engineering is essential.
Discussion
20 comments analyzed.
Competitors mentioned: Termius, Ghostty, ttyd
Concerns raised: Only works on iOS 16 (not older devices), Doesn't support ETM MAC algorithms for hardened NixOS sshd, Mosh sessions don't resume as expected, requires new session each time, SSH certificate authentication advertised but CA configuration missing, Keyboard handling on iOS is difficult
Feature requests: SSH jump host / ProxyJump support, Agent forwarding support, Sync saved connections to iCloud across devices, Support additional MAC algorithms, Scroll up/down functionality in UI
Competitors
Other products that read as similar to this one — 836 launches clear the similarity bar, closest 8 shown.
Attention rank: #81 of 837 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 110 days after the earliest competitor.
- Reminal · hn · 2026-07-01 · 13 upvotes · similarity 0.65
- Chuchu, an Android SSH client built on libghostty · hn · 2026-05-09 · 13 upvotes · similarity 0.65
- A collaborative SSH copilot for on-calls/DevOps/MLOps · hn · 2026-04-19 · 8 upvotes · similarity 0.63
- OxiSH, a modern, memory-safe SSH server · hn · 2026-08-13 · 28 upvotes · similarity 0.62
- Shittp · hn · 2025-12-21 · 136 upvotes · similarity 0.56
- GhostVM · hn · 2026-03-16 · 7 upvotes · similarity 0.56
- vmup · github · 2026-09-12 · 11 upvotes · similarity 0.55
- Calyx · hn · 2026-03-12 · 28 upvotes · similarity 0.55
Other launches for this product
- No other launches for this product.