"Rekall" database frontend

We have been using and developing a database frontend for our small trading company for well over 10 years, using “Rekall” software with mySQL/mariaSQL as database.
We intend to upgrade our operating systems to openSUSE LEAP 15. This is not possible because the Rekall software is not yet available for this new version.
Can we expect that Rekall will be available in the future? If not, can anybody compile it for us? Are there possibilities to replace Rekall with something else?
Thank you for any useful suggestions.

Ask the maintainers to see if they can get it to build;

I have my doubts as it looks like a dead project…