refresh() unconditionally ran lv_obj_clean(_list) and recreated 5-7 LVGL objects per row on every call - every navigation back to Messages, every 750ms coalesced inbound batch, and the periodic name-resolution sweep - even when nothing had changed. With the store read now O(1) (index preview cache), that widget churn was the remaining gap vs NomadNet / Network / Maps, which build once and just unhide. refresh() now gathers row data first (index preview + hash + unread, no message-file I/O) and diffs it against the rendered rows; the rebuild only happens when data actually changes. Rows keep focus-group membership and the screen keeps its scroll position on the no-change path. The per-refresh 'Found N conversations' log drops from INFO to DEBUG (serial output under the LVGL lock stalls the render task). get_conversations() ordering is deterministic (last_activity desc with peer-hash tie-break), so the index-aligned comparison is stable.
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.