A few issues I encountered. in case you want to make a FAQ or similar.

[datvidc]

When installing and attempting to run Yarn install and Yarn start - I encountered a couple of problems, and just wanted to list them here in case you wanted to make a FAQ:

Error: ENOSPC: System limit for number of file watchers reached, watch "FILE LOCATION".
Gatsby error: gatsbyjs/gatsby#11406

VSCODE beautifier conflicts. Project uses Prettier, but apparently if any of your VSCODE extensions have any form of beautifier, this will result in catastrophic formatting.
some extensions only made wrong indentation, however others split tags over several lines. Beautifier is a big no no.