plotting without LaTeX ("File `type1cm.sty' not found" on Cardiff JupyerHub)

Trying to run the GW190412 samples release notebook on the Cardiff JupyterHub with igwn-py37, the PESummary plotting commands (e.g. _1d_histogram_plot()) all throw errors that boils down to

! LaTeX Error: File `type1cm.sty' not found.

My workaround is to set plt.rc('text', usetex=False) after importing PESummary, but it would be nice if it either would automatically decide to fall back to TeX-less rendering, or give a user option to do so.

According to Charlie, there should already be some sort of check to see if latex is installed, but either this isn't triggering at all here, or maybe there is a partial install but just that font file is missing.

Not urgent, since the workaround works.

(Why the igwn-py37 doesn't contain LaTeX fonts is another interesting question, but beyond this issue tracker.)