SideTNFS

Unofficial, open-source firmware for the Raspberry Pi Pico W on SidecarTridge hardware. Through GEMDRIVE, it gives an Atari ST normal GEMDOS drive letters backed by a TNFS network share or a local SD card — no floppy images or traditional Atari hard-disk images needed for everyday use.

Built on top of the original SidecarTridge hardware and firmware architecture. Currently primarily developed and hardware-tested on a Mega STE with TOS 2.06.

• TNFS network drives, up to eight at once
• Optional local SD-backed drive
• Built-in read-only SETTINGS drive with the SIDETNFS.PRG configuration tool
• RTC/NTP clock sync, friendly NET_ERR.TXT error handling
• Read and write support through GEMDRIVE

The full product page, with installation instructions, requirements and FAQ, lives at retroloft.net/sidetnfs.

Source code, releases and issue tracker: github.com/RetroLoft/SideTNFS-Firmware