we are not a SaaS company, we just run some simple nodejs based services on swarm and my goal is to use swarm as a testing hub for docker - mostly the ci should

we are not a SaaS company, we just run some simple nodejs based services on swarm and my goal is to use swarm as a testing hub for docker - mostly the ci should push something there for the devs. So uptime does not matter, however swarm crashed badly a few times on me and at the moment everything important is well configured outside using your typical LTS linux distribution and I'm hesitant to move our basic services to it...basically 9-5 it has to work, I can just run apt-get update && reboot earlier or later - really not sure if I should move all the stuff into swarm / k8s - also because bus factor would be one and there is some experience with the old linux way. For everything that resembles a microservice/service -> Docker, everything else (ldap, mail) -> oldschool. So far so good. I'm looking at k3s or minikube with rancher as ui - maybe that's better, or we just ignore the hype and run docker-compose.yml files by hand but that's also pretty shitty.