bldenv and ws need to merge
To build small components, a full nightly is way too much.
There are currently two tools to allow one to "enter a workspace" and build illumos parts. One is ws(1), and the other is bldenv(1). The primary difference between them is that bldenv(1) requires an env file like nightly(1) does, where ws does not, and derives what it can from the directory argument or PWD.
These should be merged, possibly keeping the same names as aliases, but one should be able to construct on the fly most of what bldenv would need merely based on path to a local illumos-gate repo.