Unrelated(ish), but thanks for mentioning libguestfs! I've been passively looking for the solution to the non-root filesystem access problem for a while. Also,

Unrelated(ish), but thanks for mentioning libguestfs! I've been passively looking for the solution to the non-root filesystem access problem for a while. Also, PSA: this project has a program that can read and write Windows registry hives.