You can run ELF binary apps directly from an SD card without restarting or flashing the ROM. There's an SDK for building these apps, but I haven't made an official release yet.

I wrote a blog post with some background information: https://bytewelder.com/posts/2025/01/06/tactility-one-year-later.html

Source code and project files: https://github.com/ByteWelder/Tactility

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[–] Valmond@lemmy.world 6 points 5 days ago (1 children)

I have a python app that would love to run on a small wifi device like an ESP, how far away is the possibility to do that? Could I freeze the python fikes to (8MB IIRC) executables (Linux) and run them?

Also, how do you use an sd card on the esp?

I toyed around a lot with the old ESP 8266 back in the day so I'm a bit out of the loop with thise newer ones.

[–] ByteWelder@feddit.nl 11 points 5 days ago

I don't expect regular Python apps to ever run on Tactility, as the memory requirements are likely too high. There is at most about 8MB of RAM for apps available. Perhaps a special build of micropython could work at some point.

You can open the Files app and there's a folder named "sdcard". So far, all SD card implementations are done via a serial interface (SPI). I cannot mount them on-the-fly yet - only at boot.