For ebooks only, there are options to charge and make them available for free as well. One option is honor system: pay if you can, see for ex https://twitter.c

For ebooks only, there are options to charge and make them available for free as well. One option is honor system: pay if you can, see for ex https://twitter.com/b0rk/status/1254396387703361536 https://twitter.com/b0rk/status/1254396387703361536 . Another option is where people can buy the book and pay for other people as well.