Hello Guix, I suspect this is related to my environment and not to next... but don't understand why and how to fix it also, probably I have dbus problems for other applications too but I do not see them because they are not blocking like in next I installed next 1.4 via guix on two Debian 10 machines: 1. my laptop: next works fine and I'm happy 2. my LTSP app server: it does not work :-S this is the error I get on my app server: --8<---------------cut here---------------start------------->8--- giovanni@roquette: next -v Arguments parsed: (VERBOSE T) and NIL Next version 1.4.0 [18:38:43] next remote.lisp (ensure-dbus-session fun1 fun65) - Failed to run (dbus-launch): dbus-launch not found --8<---------------cut here---------------end--------------->8--- my dbus related processes on this failing machine are: --8<---------------cut here---------------start------------->8--- giovanni 32087 0.0 0.0 11032 2276 ? S 18:34 0:00 /usr/bin/dbus-launch --exit-with-session --sh-syntax giovanni 32088 0.0 0.0 8880 2888 ? Ss 18:34 0:00 /usr/bin/dbus-daemon --syslog --fork --print-pid 5 --print-address 7 --session giovanni 32124 0.0 0.0 3336 2852 ? S 18:34 0:00 /gnu/store/zjalyyj5v1gygqh613p3y5b3hp7rdxpj-dbus-1.12.12/bin/dbus-daemon --config-file=/gnu/store/rhx1m9ms4a856rayxdb60z776av63f18-at-spi2-core-2.32.1/share/defaults/at-spi2/accessibility.conf --nofork --print-address 3 --8<---------------cut here---------------end--------------->8--- and the related DBUS env on the failing machine is: --8<---------------cut here---------------start------------->8--- DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-X4UdsFONq5,guid=8fc98da614e6df5de9ef6fe45e1caa2d --8<---------------cut here---------------end--------------->8--- on the laptop, where next is running fine, I have this dbus related processes: --8<---------------cut here---------------start------------->8--- g 2665 0.0 0.0 9088 4388 ? Ss Jan12 0:22 /usr/bin/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only g 2878 0.0 0.0 8884 4160 ? S Jan12 0:00 /usr/bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/accessibility.conf --nofork --print-address 3 --8<---------------cut here---------------end--------------->8--- and this dbus related env: --8<---------------cut here---------------start------------->8--- DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus --8<---------------cut here---------------end--------------->8--- Any hint please? Thanks, Gio' -- Giovanni Biscuolo Xelera IT Infrastructures