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NebulaOS Nightly — 2026-08-15

NebulaOS Nightly — 2026-08-15 Pre-release
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@coreflake1 coreflake1 released this 15 Aug 21:38
nightly-2026-08-15
0b60f7e

This is the first published NebulaOS developer nightly.

It's the exact build that went through the Final Closure hardware qualification on the reference
Ender-3 V3 KE — the same one that came out of the switch to NebulaOS's own unified build container
(no more nested Pellcorp/GuppyDev containers). We didn't rebuild anything for this release; these
are the actual bytes that got flashed and tested.

What was actually tested, on real hardware

  • Boots normally, comes up on the custom slot
  • Klipper connects to the MCU and reports ready
  • Moonraker and Mainsail come up and work
  • Wi-Fi connects
  • GuppyScreen, including the b15ad7f config/theme persistence fix (settings actually survive a reboot now)
  • Camera
  • Full G28 homing
  • PRTouch (the load-cell probe)
  • Z offset calibration (Z_OFFSET_CALIBRATION)

All of the above passed directly on the printer, not just in a build pipeline.

What we haven't specifically tested

  • A full, representative print start to finish
  • Pause/resume/cancel partway through a real print

This is a developer build, not a polished consumer release — read the install and recovery docs
below before flashing it onto your own printer.

What's in this build

Source Commit
NebulaOS-firmware 5c2b066
NebulaOS-kernel (openke) 295b710
NebulaOS-klipper (master) 9ccb2e5 — the PRTouch disarm + Z-offset XY-reference fixes
NebulaOS-guppyscreen (main) b15ad7f — the config/theme persistence fix
Moonraker d5ee171
Buildroot 74d0200
Build container ghcr.io/coreflake1/nebulaos-build@sha256:a6ba57c69fa1ea630b037a1d1f55cf0c044a7f5a403bde9b155ea54bca1cceba
Qualified baseline tag nebulaos-canonical-baseline-2026-08-14-prtouch-qualified

Full provenance, every pin, and every hash: see build-manifest.txt attached below.

Files

  • xImage — the kernel
  • rootfs.squashfs — the rootfs you actually flash (this is what the install docs use)
  • rootfs.ext2 — same rootfs, ext2 form
  • build-manifest.txt — exactly what went into this build
  • kernel.config — the resolved kernel config
  • flash-spare-slot.sh — the version of the flash script that matches this build
  • SHA256SUMS — checksums for everything above; verify before you flash anything

Docs you'll actually want

This is a developer/advanced-testing build, not a supported consumer installer. If that's not what
you're looking for, hang tight — there isn't a polished install experience yet.

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