Hydroxychloroquine & Remdesivir work against CoVID-19? How?

In this episode, we dive into the big two drug players on the front against CoVID-19 - hydroxycloroquine and remdesivir. Do they work? If so, how do they work?

References:
Remdesivir:
https://www.nih.gov/news-events/news-releases/nih-clinical-trial-remdesivir-treat-covid-19-begins
https://www.jbc.org/content/early/2020/02/24/jbc.AC120.013056

Hydroxycloroquine:
https://www.medrxiv.org/content/10.1101/2020.03.22.20040758v3
https://www.medrxiv.org/content/10.1101/2020.04.16.20065920v2
https://www.nature.com/articles/s41584-020-0372-x
https://www.nature.com/articles/s41421-020-0156-0