I'm also experiencing this same issue on two different installations of Guix.
Running `context` directly yields the same result as Reza's. However, I was able to successfully run the `mtxrun` binary and to generate the database files using `mtxrun --generate`. While `context` is unable to execute, `mtxrun --script context` throws the following error: unknown script 'context.lua' or 'mtx-context.lua' Kind regards, -- Aziz