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Update KaTeX to 0.16.10; remove flakes
Remove package-lock.json (use yarn.lock instead please)
This is a required component of the plugin to actually render the math.
Run docker pull quay.io/e0223b4a/staticmath-server.
Then, docker run -d -p 3000:3000 staticmath-server.
Run yarn install in the root.
Run node index.js in the root.
PORT: Environment variable that changes the port that the server listens on