box64 userspace emulation on postmarketos

[aspauldingcode]

Note to anyone who wants to build it under postmarketOS (or Alpine).

Just create a debian chroot

Install debootstrap, which will allow you to 'install' the base Debian system
apk add debootstrap

Install Debian stable to /debian
debootstrap stable /debian http://deb.debian.org/debian/

Chroot into it
chroot /debian /bin/bash

Create a user
useradd -m -s $(which bash) debianuser # can name debianuser whatever you'd like

Install build dependencies
apt install git cmake python3

Switch to your new user
su - debianuser

Then clone the repo and follow the build instructions.