Even the lightweight server options are very heavy (resources, install process, and/or UI clutter) or are a pain to deploy. Does a single user server exist? I

Even the lightweight server options are very heavy (resources, install process, and/or UI clutter) or are a pain to deploy. Does a single user server exist? I don't want to host for others, but would like to interact with a few people that have migrated from Twitter. Are there any resource light servers that can be deployed as a container with a single config or env file that doesn't require many manual commands against a container instance?