A online hosted version of these files should be available via:
"https://mbdata.science.ru.nl/jsmits/epi_fate/epi_fate_trackhub.hub.txt"

If this is no longer available this zenodo repository contains all the files to host the trackhub yourself:

1. Unzip the files in hg38.zip towards hg38
2. Move epi_fate_trackhub.hub.txt, epi_fate_trackhub.genomes.txt, and the hg38 folder to a internet accesbile location
3. add the URL: 'internet_accesible_location/epi_fate_trackhub.hub.txt' to UCSC trackhubs.

For more info regarding trackhubs see:

https://genome.ucsc.edu/goldenPath/help/hgTrackHubHelp.html#Setup