Code documentation and overall project documentation are boring to do, yet required for long term success of any software project. It helps with on-boarding new engineers as well as maintaining a log of what transpired over the previous months and years and why certain choices were made. I would also include all team communication over slack, jira, bug trackers etc into this documentation. Writing it, Organizing it, Enhancing it, Updating it and sifting through them is extremely boring work. I have to dig out old e-mails or messages from the ERP from old colleagues if the documentation does not match the actual features, now that is really boring.