TinyMaix

This looks pretty decent! And then esp-dsp can be used as example code in some cases. Personally I want to have accelerated Neural Networks for ESP32-S3 using this. Ideally for https://github.com/sipeed/TinyMaix which is one of the smallest and most hackable CNN implementations.

Have a look at the BL808 chip, on the sipeed M1s board. (https://www.aliexpress.com/item/1005004970779483.html) I've never seen an MCU with access to 64mb RAM - makes for a great target chip for a simple computer. (https://btashton.github.io/bl808-notes/soc/memory_layout.htm...) There are 5 processors on the chip, which you can optionally use as required: NPU (neural processing unit https://github.com/sipeed/TinyMaix/blob/main/benchmark.md) H264 video codec RV64 application processor capable of running linux RV32 radio processor for the 3 radio protocols it supports - wifi/BT/zigbee RV32E low power core to manage the chip The radio and application cores should run fast enough to be able to bitbang digital video signals, there is 32K VRAM which I guess might be used for the bundled touchscreen display.