Composer version

[Kaik]

By default it is version 2
To downgrade it manually run
composer self-update --1

Todo add composer version switch in php docker file and .env

[Guite]

Does it make sense to invest energy into composer v1?

[Kaik]

I think yes. I found myself downgrading this thing few times in a row for core 2x. I already have it just need to test it.. It might be useful for spinning up old zikulas and other code.