- Get apktool (due to 2 bugs present in v2.3.4, you're strongly recommended to use v2.4.0 or higher, I compile latest from source).
- Get apktool (use [this self-built version](//f001.backblazeb2.com/file/avepub/apktool-cli-all.jar) which is master + [this pr](https://github.com/iBotPeaches/Apktool/pull/2463)).
- Get a keystore, see [here](https://stackoverflow.com/a/14994354/3286892), step 1.
- Get apksigner, it's part of android build tools.
- If you want Mutant Standard emoji patches, get 72x72 PNG copies of latest version of mutant standard emojis with codepoints. I have a zip [here](https://mutant.lavatech.top/72x72.zip).