Ask HN: Best useful tools that are helpful in your business?

Figma, Docs/Sheets, and Airtable are the most useful for async collaboration

Honestly the hands down most useful product across my business is Google Sheets. From tracking stuff to automating stuff, it's always a tool of first resort. Later on projects or operations will "Graduate" to a more specific saas solution, but it almost always starts in Google Sheets.

Other than that, Vercel and Figma.

I like open source/self-hosted but most of the time fiddling with running my own servers for random tools is not a good use of my time when I could be expanding or automating my business elsewhere.

We use syncthing to share files between our machines. It avoids is having to use dropbox / OneDrive etc. You just choose a folder and it automatically syncs it in the background.

https://syncthing.net/