Hello Tatiana! An interesting command to test that everything works correctly is:
parallel 'echo {} && curl http://localhost:8080/' ::: {1..100} You can use it on an example server: ./pre-inst-env cuirass --specifications=examples/random.scm --database=test.db or ./pre-inst-env cuirass --specifications=examples/hello-singleton.scm --database=test.db It run 100 times 'curl http://localhost:8080/' in parallel, so it's good at showing issues related to multi-threading. (you need 'guix package -i parallel' :-)) Those issues are hard to debug, I'll investigate too. Clément