He doesn't list what the mistakes will be. He said that he fears that because hardware people aren't software people, that they will make the same mistakes that x86 made, which were then made by Arm later.
He did mention that fixing those mistakes was faster for Arm than x86, so that brings hope that fixing the mistakes on Risc V will take less time
It is extremely dark, and the lights imitate fire, so they provide ambiance, not lighting. (They look bright because of the long exposure) The garden definitely gets more lighting from the street lights than it does from the tiki lights
Early reports suggest it was caused by a loose chain dragging on the ground and throwing sparks behind a horse trailer. But the cause is still under investigation.
I don't know the answer to your question, but you can get the functionality of pihole directly in pfsense using pfblocker-ng