I also recommend Vikunja. You can store instructions with the task.

• Unlike Grocy, it supports due dates based off the last completion date for tasks such as “mow the lawn within 2 weeks of last mowing.”
• However, it doesn’t have task completion history like Grocy.

Self-hosting NocoDB has gone very well for me. Do you know which features you need that are enterprise only?

NocoDB: Community Edition vs Enterprise Edition