[ocornut]

Interestingly there are no modification of the core Dear ImGui library involved. It's using a software renderer, which have been available already e.g. that one had been optimized to run on ESP32 https://github.com/LAK132/ImDuino

They are really cool/fun setup as well as being proofs of the portability of Dear ImGui but I imagine probably a little too taxing for the SoC involved. In the sense that if you were to want to use more of the SoC computational power it might feel like an unbalanced amount of resources to allocate to a GUI library (which normally expects a GPU).