SES builds on capability theory to let you run "adversarial" code together with your trusted code safely. Deno is a runtime that aims to isolate the code from

SES builds on capability theory to let you run "adversarial" code together with your trusted code safely. Deno is a runtime that aims to isolate the code from the system amongst other issues. SES uses a proof over the JS grammar with induction, Deno does isolation by not giving any OS level access to your code. Neither are particularly complete and are mostly orthogonal. Both are looking for people to help with them :]