<GitHub>
[solvespace] justthinkering commented on issue #323: I guess, they forgot to update the name "solvespace-2.3-20170808", but they link to the SolveSpace revision "16540b1b2c540a4b44500ac02aaa4493bccfba7e" (https://github.com/solvespace/solvespace/commit/16540b1b2c540a4b44500ac02aaa4493bccfba7e), which agrees with my version "3.0~16540b1b" (from Help → About...). I followed the default way to install the NixOS package