Thanks to the tremendous efforts of Elari Saal we are ready to test unitemporal PostgreSQL support. It is available in the test version of the online modeling tool. Please report any bugs you find on the github page for the PostgreSQL branch, leave comments to this post, or use the forums.
The test version of the tool is now hosted by github, which gives us much better control over deployment. Please update any old links you may have to the previous host (anchor.co.nf).