We love open-source. That is why we use the free and open-source software KiCad. This enables our customers to freely edit the schematics and board files we created. KiCad has no limitations in size or pin counts and supports up to 32 copper layers.
Once the schematic and board layout is finished, we export manufacturing files for the production. For the first prototypes, we usually place the parts by hand and solder in our reflow oven to quickly verify the functionality.