Small NixOS Appliances with Over-The-Air updates using systemd-sysupdate

Guides
1

Hey there!

We just published the 3rd article of our 4 article series about NixOS appliances:

In the different parts of the article series, we handle the following topics step by step:

  1. NixOS appliance images with systemd-repart
  2. Minimizing NixOS images
  3. Immutable A/B system partitions with NixOS for over-the-air updates (:point_left: this article)
  4. Cross-compiling the image for other platforms (TBD)

Immutable system partitions A/B layout:

talk-partitions.B0dgKVeK_9Djyf
talk-partitions.B0dgKVeK_9Djyf1920×1080 46.6 KB

Systemd-sysupdate’s builtin update capabilities:

update-progress.IRcVIi1U_Zv5NRj
update-progress.IRcVIi1U_Zv5NRj980×314 18.8 KB

[edit: fixed images]

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2

That’s really cool! Good work!