Refactoring DLTJ, Winter 2021 Part 4: Thursday Threads Newsletter Launches

Success! Four parts plus a half (or a "re-do"" of part 2):

1. Ramp up automation for adding reading sources to Obsidian
2. Refactor the process of building this static website on AWS
   • Fix the webmentions cache, an unanticipated diversion
3. Recreate the ability for readers to get updates by email
4. Turn the …