SFS has been teaching FLOSS (Free/Libre and Open Source Software) since before 2013. In 2013, we delivered our first Linux Camp for sysadmins, four days of learning by immersion. In 2018, we delivered our first DevOps Camp for developers and sysadmins specializing in DevOps tech, like CI/CD, cloud computing, containerization, and orchestration. We developed SFS Method, a teaching framework to enable quality technical training by passionate SME's who are not expert teachers. We cater to Subject Matter Experts (SME's) and newbies alike - any technology professional is very often both, being one or the other at different times, sometimes even within the same subject matter. Providing the environment to move from one role to the other is where the Software Freedom School truly shines! We honor by emulation, the spirit of the Free Software Foundation: "When we speak of free software, we are referring to freedom, not price." This means that we, like the FSF, are fully committed to the user’s Four Freedoms: the freedoms to use, study, share, and modify the software. In our case, the defend the learner's freedom to use, study, share, and modify our training material. We believe that the use and creation of software and is both an art and a science, and we believe that art and science progress best when the freedom of creators and users is protected. In that spirit, SFS teaches free software in a free software way. The assets we create or commission are all given to our students under a CC-BY-SA copyleft license. You are allowed and encouraged to use, study, share, modify our materials, and even to make money at it if you have the opportunity. We only ask that you give us credit and respect your students' freedom just as we respect yours.