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Game Boy on the Beam

A DMG Emulator in Pure Elixir

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HN · launched Jul 29, 2026 · 6 upvotes (top 71%) · 0 views

Niche: video game console emulators · 100 launches, 7 in the last 7 days ▼ -67% · Explore this niche →

Category and tags
  • Media & entertainment
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

More like this: all 100 launches in video game console emulators →

Could you build this?

No Writing a Game Boy hardware emulator in Elixir demands deep knowledge of the Sharp LR35902 CPU, memory-mapped I/O, cycle-accurate timing, and custom audio/PPU rendering on the BEAM virtual machine.

What it would actually take: Building this requires mapping the full 8-bit instruction set with accurate cycle counts, emulating the Pixel Processing Unit (PPU) frame-by-frame, and implementing memory bank controllers (MBCs) and the programmable sound generator. Implementing this in Elixir requires advanced OTP actor design for concurrency, binary pattern matching, and efficient low-level state manipulation without the garbage collector causing frame drops.

Discussion

No comments on this launch.

Competitors

Other products that read as similar to this one : 2926 launches clear the similarity bar, closest 8 shown.

Attention rank: #2059 of 2927 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 273 days after the earliest competitor.

  • oink · github · 2026-09-22 · 11 upvotes · similarity 0.65
  • peggle-enhanced · github · 2026-10-31 · 19 upvotes · similarity 0.61
  • Refract · github · 2026-09-27 · 82 upvotes · similarity 0.61
  • Journey · hn · 2026-02-16 · 10 upvotes · similarity 0.60
  • PS5EmuShell · github · 2026-10-23 · 63 upvotes · similarity 0.60
  • ssrecomp · github · 2026-10-14 · 75 upvotes · similarity 0.60
  • PS5-GameLauncher · github · 2026-10-08 · 14 upvotes · similarity 0.59
  • Parin · hn · 2026-10-16 · 75 upvotes · similarity 0.58

Related data

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