John
John
https://github.com/treehouses/builder/tree/arm64-bionic progress on the arm64 release can be seen here
This is also happening to terraform and various yml files. I believe wget is not overwriting, and creating a ton of clutter by duplicating the file. 
possible solution: add -N to every wget call `-N, --timestamping don't re-retrieve files unless newer than local.` or add the relevant files to `clean.sh`
may also want to change `exit 0` to `return 0`