All those RP2040 hacks are impressive (HDMI, etc) but also suggest that the RP2040 is just slightly underpowered for many practical applications. I hope some cheap RISC-V MCU unbound by ARM licensing constraints (with Atomic ops+SIMD, unlike Cortex-M0) comes soon.
It appears they've overclocked the RP2040 quite a bit without also increasing voltage. First time seeing that. Eg, slightly higher at 250Mhz some RP2040's have been unstable without it: <a href="https://github.com/pimoroni/picosystem/pull/57">https://github.com/pimoroni/picosystem/pull/57</a>