I wrote earlier about how to backup a small SQLite database. That solution works well for small databases, but can become impractical for larger databases. In particular if the machine with the database has not enough disk space for another copy of it, and you want to backup to another machine. One option is to use sqlite3_rsync, but I could not get that to work, it kept running out of memory.

I want an easy way to run one or more ephermal Linux VMs in Ubuntu desktop, including the possibility to mount host directories into them in an efficient fashion. Those VMs should have the same CPU architecture and hardware features as the host, no need to emulate some foreign CPU or special hardware, and no GUI in the VMs. The intended use case is sandboxing and isolation for security and reproducability reason.

Most Linux systems uses systemd as init and service manager nowadays. You can use systemd to start your services, so that they are automatically restarted if they crash, and automatically started when the system boots. You can even do this as a regular user, without root access (then the service will run with permissions of your user), and have it automatically started when the system boots without you having to login.