If you're implying something, then please get your thoughts across more clearly. The title says "profit goes to open-source", meaning CUPS, SANE, AirSane projects, which are FOSS (free and open-source), if the publicly available code and collaborative development is what you're referring to.
Additional software (web interface, scripts, utilities) is free, the source code is included in the source package.
The customer is provided with the source code of the firmware components, and with the build system based on mkosi[1] to build the complete firmware: starting from bootstrapping Debian 12 builder image which cross-compiles the packages with additional patches and builds additional software, to ARM Debian 12 image with everything compiled in the previous stage, to the final squashfs OS file and MicroSD image.