Well, everything is open source, I have a partial and very limited (but currently enough for my needs) linker for x86_64 and RISC-V 64bits (but written in plain and simple C which compiles with tinycc and cproc/qbe!).

I even have an ELF capsule for executables (for x86_64, written in assembly).

So it is out there, but not "tidy" (aka a wip messy tarball), as I said, I am not sorta sure about how to handle the in-process loader, which is beyond simple, but I still believe I can make it even simpler (yeah, not more gigantic external "interpreter"/"loader).

Once I am satisfied, I'll ship that to a nicely tidied GIT repo (but with support of noscript/basic HTML browsers, unlike ... you know which ones...).