Is there an alternative way to fire up an instance of GrowthBook without using Docker? (For reference, I'm using Linode.)

you can build it yourself - the instructions are in the contributing.md

@fresh-football-47124 Thanks, I'll take a look.

You would basically do the same steps as the Dockerfile is doing, but directly on your host - https://github.com/growthbook/growthbook/blob/main/Dockerfile