Static linking also costs $0 if you comply with the terms of the LGPL: https://www.gnu.org/licenses/gpl-faq.en.html#LGPLStaticVsDynamic https://www.gnu.org/lic

Static linking also costs $0 if you comply with the terms of the LGPL: https://www.gnu.org/licenses/gpl-faq.en.html#LGPLStaticVsDynamic https://www.gnu.org/licenses/gpl-faq.en.html#LGPLStaticVsDyn... Note that does not necessarily require “your code” to be/come open source.