m64p (2021/06/11) is released. m64p uses mupen64plus-gui, a brand new mupen64plus frontend written in Qt5. It supports all thing things you’d expect from a frontend (savestate management, pausing, screenshots, etc..). m64p comes bundled with GLideN64 for the graphics plugin. It should give you the best out-of-the-box experience available for N64 gaming.

m64p changelog:
This release adds support for games created with the libdragon (https://dragonminded.com/n64dev/) toolchain. These are homebrew/fan made games. An example is here: https://github.com/meeq/FlappyBird-N64
There are quite a few games created with this toolchain, you can google "N64 homebrew" to find some.
If you know of other homebrew games that have issues, I'd be curious to hear about them!

Download: m64p (2021/06/11) x64
Source:Here