Release 0.5.0 is out! This release contains the disassembler, which is invoked via SEE and DISASSEMBLE (the former takes a word name, the latter takes an address range). There may still be bugs in it, but it is functioning well enough at this point that I figured that it should be officially released as part of the zeptoforth_full-$VERSION.bin binaries rather than having to be manually loaded and compiled by the user.