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zxdesk

A GUI operating system for the 48K ZX Spectrum, in Z80 assembly

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GITHUB · launched Sep 16, 2026 · 73 upvotes (top 11%) · 1 view

Niche: experimental and embedded operating systems · 142 launches, 6 in the last 7 days ▼ -60% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • Prosumer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

No Writing a graphical operating system in Z80 assembly for the severely constrained 48K ZX Spectrum hardware requires low-level retrocomputing expertise and precise cycle/memory optimization.

What it would actually take: Building this requires expert knowledge of Z80 machine architecture, memory banking, video RAM timings, and Sinclair ZX Spectrum hardware quirks. The stack relies on pure Z80 assembly and specialized cross-assemblers (like sjasmplus) with cycle-accurate emulators. Implementing window management, event loops, and input drivers within 48 kilobytes of RAM is far beyond typical LLM code generation capabilities.

Competitors

Other products that read as similar to this one : 3419 launches clear the similarity bar, closest 8 shown.

Attention rank: #391 of 3420 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 320 days after the earliest competitor.

  • xdos · github · 2026-11-07 · 38 upvotes · similarity 0.66
  • moxnox · github · 2026-10-22 · 20 upvotes · similarity 0.63
  • nanoui · github · 2026-10-18 · 407 upvotes · similarity 0.62
  • X86CSS · hn · 2026-02-24 · 275 upvotes · similarity 0.62
  • elixos · github · 2026-10-10 · 17 upvotes · similarity 0.61
  • ZMQ Arena · hn · 2026-08-23 · 5 upvotes · similarity 0.61
  • z80-silicon-rtl · github · 2026-10-03 · 9 upvotes · similarity 0.60
  • uberblok · github · 2026-10-20 · 19 upvotes · similarity 0.60

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.