Its an interesting presentation that does show the current state of emulating these two platforms on your PSP in 2023.​

Now there is still work to be done but the progress has shown promise and much more then the original PoC's of these emulators early in the PSP Homebrew Scene. Every year, thousands of developers of free and open source software from all over the world gather at the event in Brussels.' This presentation shows the challenges and also alot of progress Dremcast and NIntendo DS emulation has come on the PSP.

Now there was a very interesting presentation from a few days ago at the Fosdem 2023 event, FOSDEM ' is a free event for software developers to meet, share ideas and collaborate. How far can the PSP go, in terms of emulation power? We have seen alot of progress in the emulation of various PlayStation Homebrew platforms, we have seen recent progress in the PS3 dynarec (see here), we have seen progress with the PS Vita with n64 and dreamcast and even the PS2 has seen its share of improvements to emulation.