Please consider merging branch fix-init-build of repository https://git.spwhitton.name/propellor.
fix-init-build
https://git.spwhitton.name/propellor
propellor --init can fail if the build system is cabal and the user has require-sandbox: True in ~/.cabal/config. This patch fixes that.
propellor --init
require-sandbox: True
~/.cabal/config
merged --Joey