At [DebConf17](https://debconf17.debconf.org/talks/165/ "Debian for Medical Software") Roche Diagnostics presented the internally developed “Roche Linux” which is based on Debian GNU/Linux. Fast forward two years, we would like to share our experience with migrating a medical device to Linux, debianizing and developing software on Debian. Furthermore we would like to demonstrate our Debian toolchain and share how we create reproducible and upgradeable Debian environments for development, test and production on multiple architectures.