TorlandoandClaude 3c090b4174 fix(nomadnet): reuse blanked image records on region regrowth
Greptile round-5 P1: "Blank Slots Exhaust Capacity." A partial that
shrinks a region blanks the removed records but leaves them in _images;
the reusable-slot scan only saw image blocks still present, so a later
regrow could not reuse the blanked records and appended past them.
Repeated shrink/grow cycles consumed the bounded record capacity until
current images fell back to placeholder text.

The reusable pool is now every record NOT still referenced by a surviving
non-region image block: region_slots (old region's records, document
order, replaced in place) plus dead_slots (records a prior shrink
blanked, ascending index, reused before any append). Retained records
stay excluded and keep their index, so decoded slots / loader entries
still resolve; overflow beyond the pool appends as before and hits
MAX_IMAGES with a run-text fallback.

Regression: grow(3)/shrink(1) x2.5 cycle pins the record count at the
retained+region bound and that the final grow renders every current
image (no blank fallback). Falsified against the append-past-blanked
code (fails), passes with the fix.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-09-22 21:15:58 +00:00
2026-02-07 11:49:21 -05:00

Pyxis logo

Pyxis

An LXMF and LXST client firmware for T-Deck, built on a highly modified fork of microReticulum

Very much WIP, don't expect stability :)

Features

Reticulum transport over:

  • RNode-compatible LoRa
  • AutoInterface (local wifi)
  • TCP Client
  • BLE Interface (barely working if at all)

Other features:

  • GPS-synced time
  • One really annoying beep when you get a new message (user toggle)
  • View the announce stream
  • Choose a propagation node (and sync with it) (fixed in v0.2.1)
  • Set auto announce timer
  • Light up keyboard (user toggle)
  • Will crash in about 5 minutes of normal use (sorry) I had 5d uptime on v0.2.0 with BLE disabled
  • Make LXST voice calls (codec2 only, quality sounds horrible coming out the other end in Columba, needs work)

Flashing

The easiest way to get Pyxis running is the web flasher, which downloads release firmware from this repository's releases and verifies each image's SHA-256 digest against the release metadata.

For esptool (or any other tool that writes raw flash), each release also publishes a merged binary (pyxis-<tag>-merged.bin) that contains the bootloader, partition table, OTA selector, and application at their fixed offsets. Provision a T-Deck Plus (8 MB flash) with:

esptool.py --chip esp32s3 erase_flash
esptool.py --chip esp32s3 write_flash 0x0 pyxis-<tag>-merged.bin

Merged binaries are for first install / provisioning. Flashing one overwrites every flash region, including NVS (settings, identity) and the LittleFS partition (messages, paths, maps). To update an existing device without losing data, flash firmware.bin to 0x10000 only, or use the Columba-compatible pyxis-<tag>.pyxis.zip update package.

Why "Pyxis"

Pyxis, latin for "compass," is a constellation in the southern sky depicting a mariner's compass. Small but essential, the compass ensures every message finds its destination - even when the path is uncertain.

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