After mentioning this on IRC Ludovic pushed 8d31cafbdcb818160852a5d1e6fc24c1a9c53e41 to the shepherd repo.
I wanted to try this out and reconfigured using the shepherd from this commit as pid1 in the vm (a bit tricky because of help2man). The first connection still fails in the same way.unexpected build daemon error: reading from file: Resource temporarily unavailable A client mentions: guix build: error: corrupt input while restoring archive from #<closed: file 2396ea8> However subsequent connections work.
