Yep nothing seems as rocksolid as piCore.
But becuase it stores installs/binaries as tcz it is different, not as many options.
This has forced me to learn Linux, busybox, grep, awk, sed etc, not a bad thing.
Or go through the tcz listing and figure out what has already been done and that can be installed and used
Big tcz's will slow down boot time too.
You have to go down to basic principles, installing massive dependencies to plot one graph seems silly.
So I learned how to plot graphs by using shell script to modify inline svg, 2k of code.
Life is a little too short to redo this every time a new project comes along so I use dygraph now, 100k?
Might go back and revisit this plotting one day and do it in 10k? of micropython.
Depends if you want to do it in the browser- javascript or on the server - shell, micropython etc.