I meant that the way hoot compiles r?rs to wasm doesn't have the double-garbage-collector note about php in the previous email, and has other nice attributes related to the kind of difficult way it's implemented. Not wanting garbage collection at all is another kettle of fish... I think weak pointers are as per Haible 2005, so I'm not sure what a weak references without reference to garbage collection would be. Hayley chewed me out a while ago for quasi-historical dancing to avoid using available garbage collection: The garbage collectors being avoided in the 80s aren't a good depiction of or of the useability of modern garbage collectors (obviously she's an sbcl contributor, so.). Putting garbage collectors inside garbage collectors kinda sucks. I think even ecl's experimental wasm target avoids double garbage collectoring, but I didn't talk to Jack Daniel about it recently.