Our public sites:

Gondola Archive
Math Tree
Kevin's blog

If you wish to donate please do so here:

Cardano (ADA)
addr1qx0nh3g87a4hkem6u7xexc7t9ztgevt2l3j0f7jqdwv6h382wkxqnyjgum4qxpaghzkl8ljm4waq49pz4cuy5e8cj69s880lff