Based on a request in a modding community I ported the mods to 1.21.10, you can find the source code here:
https://github.com/MagnusHJensen/AriKeys/tree/1.21.1
Feel free to copy it into your project, it uses https://github.com/jaredlll08/MultiLoader-Template for the multi loader template
Based on a request in a modding community I ported the mods to 1.21.10, you can find the source code here:
https://github.com/MagnusHJensen/AriKeys/tree/1.21.1
Feel free to copy it into your project, it uses https://github.com/jaredlll08/MultiLoader-Template for the multi loader template