Daniel Meißner <daniel.meissner-i4k@ruhr-uni-bochum.de> writes:

[…]

> Was this behaviour somehow changed to only accept file-like objects?

Yes, no strings anymore.  Sorry about breaking your configuration, but
guix home still under development as the manual says.  I do not think
similar breaking will happen in the future.

> I quite liked the string options because for simple aliases there is
> no need for a file-like object. WDYT?

It's already discussed at https://issues.guix.gnu.org/50967 (shortly in
https://issues.guix.gnu.org/50967#42 ) and guix-devel mailing list.

> 1: See info "(guix) Shells Home Services" under "Bash home service"

Ouch, it should be changed accordingly to the current behaviour.