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teatime-os

A bare-metal operating system for the ESP8266 with no vendor blobs

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GITHUB · launched Sep 15, 2026 · 14 upvotes (top 55%) · 0 views

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

Category and tags
  • Horizontal
  • Hardware & robotics
  • Developer
  • Not AI
  • Hobby / open-source project
  • bare-metal
  • embedded
  • esp8266
  • operating-system
  • reverse-engineering
  • wifi-driver
  • +1 more

Visit website ↗ Source listing ↗

More like this: all 142 launches in experimental and embedded operating systems →

Could you build this?

No Writing a bare-metal operating system without vendor binary blobs on microcontrollers requires extensive embedded systems, low-level assembly, and reverse-engineered hardware architecture expertise.

What it would actually take: Requires writing custom bootloaders, interrupt handlers, memory management, and hardware register interfaces in C and Xtensa assembly from scratch for the ESP8266 SoC. Bypassing Espressif's proprietary SDK and blobs requires reverse engineering the Wi-Fi PHY, MAC layer, and RF calibration registers. This demands specialized expertise in embedded hardware systems, electrical engineering, and low-level firmware development.

Competitors

Other products that read as similar to this one : 3604 launches clear the similarity bar, closest 8 shown.

Attention rank: #2012 of 3605 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 319 days after the earliest competitor.

  • Nønos · hn · 2025-12-23 · 9 upvotes · similarity 0.69
  • ember · github · 2026-09-13 · 137 upvotes · similarity 0.68
  • elixos · github · 2026-10-10 · 17 upvotes · similarity 0.67
  • moxnox · github · 2026-10-22 · 20 upvotes · similarity 0.66
  • xdos · github · 2026-11-07 · 38 upvotes · similarity 0.66
  • LiberNT · github · 2026-10-14 · 14 upvotes · similarity 0.66
  • tinysd · github · 2026-10-24 · 78 upvotes · similarity 0.66
  • eggshell · github · 2026-11-03 · 103 upvotes · similarity 0.65

Related data

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.