Updating mastodon (v3.5.3 to v4.0.1)

⚠️This update was a bit problematic because my machine didn't have enough memory (my machine has 1GB) and that same day v4.0.2 came out. Still, this were all the steps I had to perform. These are the steps to upgrade mastodon from v3.5.3 to

Mastodon server tutorial

A step by step tutorial to create your own mastodon server (including screenshots) on Digital Ocean. It includes the mail server and the S3 bucket for images. A quick note: This tutorial was written for v3.5.3 and minutes after writing it a new version of Mastodon arrives. Preparing