My Today I Learned snippets. Inspired by jbranchaud/til, which I spotted on Hacker News.

• Only run GitHub Action on push to master - 2020-04-19
• Dump out all GitHub Actions context - 2020-04-19
• Set environment variables for all steps in a GitHub Action - 2020-04-19
• Commit a file if it changed - 2020-04-19
• Running different steps on a schedule - 2020-04-20

• Convert a datetime object to UTC without using pytz - 2020-04-19
• macOS Catalina sort-of includes Python 3 - 2020-04-21
• Generated a summary of nested JSON data - 2020-04-28

• Running a Python ASGI app on Zeit Now v2 - 2020-04-19

• Lag window function in SQLite - 2020-04-19
• Null case comparisons in SQLite - 2020-04-21

• Using macOS stickies to display a workshop link on the screen - 2020-04-20

• Running pip install -e .[test] in zsh on macOS Catalina - 2020-04-21
• Get Skitch working on Catalina - 2020-04-21
• Close terminal window on Ctrl+D for macOS - 2020-04-21
• Fixing "compinit: insecure directories" error - 2020-04-26

• Use labels on Cloud Run services for a billing breakdown - 2020-04-21

• Restricting SSH connections to devices within a Tailscale network - 2020-04-23

• Session-scoped temporary directories in pytest - 2020-04-26
• How to mock httpx using pytest-mock - 2020-04-29