wololo.net/talk

I'd like to port over one of my Arduboy games really quick to the PSP. I remember I had the toolchain and stuff installed years and years ago, but much of the info and tutorials are now gone. In 2018, what's the best way to get started programming for the PSP in C++?

From memory, this is what I imagine someone must do:

1) Download the toolchain and Cyqwin (Is this still necessary??)
2) Install the SDK and libraries
3) Create the files somewhere and then compile them
4) Optionally self-sign the EBOOT.PBP to run it on official hardware without CFW

MinPSPSDK can be a fine place to start.
If you want the complete sdk then go with cygwin or try to use some of the Linux subsystems Windows 10 now offers. Maybe Ubuntu?

Also, it helps to have some sort of Emulator so you can debug and check progress. While emulators won't catch everything, they definitely help.