- [beelzebub](https://beelzebub-honeypot.com/) `⚠` - Honeypot framework designed to provide a highly secure environment for detecting and analyzing cyber attacks. ([Demo](https://beelzebub-honeypot.com/docs/), [Source Code](https://github.com/mariocandela/beelzebub)) `MIT``Docker/K8S/Go`
- [Bracket](https://evroon.github.io/bracket) - Flexible tournament system to build a tournament setup, add teams, schedule matches, keep track of scores and present ranking live to the public. ([Demo](https://www.bracketapp.nl/demo), [Source Code](https://github.com/evroon/bracket)) `AGPL-3.0``Docker/Nodejs`
- [CapRover](https://caprover.com/) - Build your own PaaS in a few minutes. ([Demo](https://captain.server.demo.caprover.com/#/login), [Source Code](https://github.com/caprover/caprover)) `Apache-2.0``Docker/Nodejs`
- [Cerbos](https://cerbos.dev) - A self-hosted, open source user authorization layer for your applications. ([Demo](https://play.cerbos.dev), [Source Code](https://github.com/cerbos/cerbos)) `Apache-2.0``Go/deb/Docker/K8S`
- [Cloudlog](https://magicbug.co.uk/cloudlog/) - Cloudlog is a self-hosted PHP application that allows you to log your amateur radio contacts anywhere. ([Source Code](https://github.com/magicbug/cloudlog)) `MIT``PHP/Docker`
- [CUPS](https://www.cups.org/) - The Common Unix Print System uses Internet Printing Protocol (IPP) to support printing to local and network printers. ([Source Code](https://github.com/OpenPrinting/cups)) `GPL-2.0``C`
[Serverless computing](https://en.wikipedia.org/wiki/Serverless_computing), [Function as a Service (FaaS)](https://en.wikipedia.org/wiki/Function_as_a_service) and [Platform as a Service (Paas)](https://en.wikipedia.org/wiki/Platform_as_a_service) management software.
- [Coolify](https://coolify.io/) - An open-source & self-hostable Heroku / Netlify alternative (and even more). ([Source Code](https://github.com/coollabsio/coolify)) `Apache-2.0``Docker`
- [Dokku](https://dokku.com/) - An open-source PaaS (alternative to Heroku). ([Source Code](https://github.com/dokku/dokku)) `MIT``Docker/Shell/Go/deb`
- [fx](https://github.com/metrue/fx) - A tool to help you do Function as a Service with painless on your own servers. `MIT``Go`
- [Kubero](https://www.kubero.dev/) - A self-hosted Heroku PaaS alternative for Kubernetes that implements GitOps. ([Demo](https://demo.kubero.dev/), [Source Code](https://github.com/kubero-dev/kubero)) `GPL-3.0``K8S/Nodejs/Go`
- [LocalStack](https://localstack.cloud/) - LocalStack is a fully functional local AWS cloud stack. This includes Lambda for serverless computation. ([Source Code](https://github.com/localstack/localstack)) `Apache-2.0``Python/Docker/K8S`
- [Nhost](https://nhost.io/) - Firebase Alternative with GraphQL. Get a database and backend configured and ready in minutes. ([Source Code](https://github.com/nhost/nhost)) `MIT``Docker/Nodejs/Go`
- [OpenFaaS](https://www.openfaas.com/) - Serverless Functions Made Simple for Docker & Kubernetes. ([Source Code](https://github.com/openfaas/faas)) `MIT``Go`