• Option to disable downloading
• If the binary is read-only, automatically skip downloading, maybe output a warning < Decided not to do this at least for now in favor of being explicitly and predictably controlled by settings
• Check the version beforehand in case etags are not supported

In some environments, it is not allowed to download then execute arbitrary binaries; such binaries have to be approved, specifically packaged and then installed from a central application repository through e.g. UI tooling.

#122 adds settings for the Coder binary source and destination; would it be possible to also allow pointing to an existing coder executable (e.g. "C:\Program Files\Coder\bin\coder-windows-amd64.exe"), and disable the remote download?