Make sure LaTeX is set up, with beamer, pdfpages, cmbright and hyperref available
Add slide PDFs to a slides/ subdir
Add entries to TALKS in source file
Run python genslides.py, a talk.pdf should result from it.
Hints
For reveal.js, try appending ?print-pdf&pdfSeparateFragments=false&pdfMaxPagesPerSlide=1&pdfBackground=true&width=1422&height=800 to the URL to get a 16:9 PDF with background.
pdfpc is great for presenting, consider mkdir ~/.config/pdfpc && cp /etc/pdfpcrc ~/.config/pdfpc and add option timer-pace-color false, then start with pdfpc talks.pdf --duration=5 --last-minutes=1 so that the timer will get red after 4m. Hit Ctrl-T between talks to reset the timer.
About
Script to generate combined lightning talk slides, as used as SPS24 on day 2