This is an adaptation of my dev.to article for Glitch. It’s recommended to read it first, to understand the concept of this oversimplified Blockchain.
First step: Import this repo https://github.com/Icesofty/blockchain-demo
OR Remix this Glitch project (easier) https://glitch.com/~blockchain-glitch
Second step: If Node is not installed, follow this outstanding tutorial by @17lwinn How to install node 13+ (Guide)
Last step: run node app.js in your terminal
Congrats, you just mined your first block!