Improve microblog.pub setup.

[config] / bullseye / etc_files / microblogpub / etc / systemd / system / microblogpub.service

[Unit]
Description=microblog.pub

[Service]
Type=simple
User=plom
WorkingDirectory=/home/plom/testing.microblog.pub/
ExecStart=/bin/sh -c 'poetry run supervisord -c misc/supervisord.conf -n'
Environment=VENV_DIR=REPLACE_venv_dir_ECALPER
Restart=always

[Install]
WantedBy=multi-user.target