This blog post touches my reality in ways I can relate to. "The reality of long-term software maintenance from the maintainer's perspective"
People often ask me what I do all days working full-time on a product that to them seemingly does the same thing now it did already ten years ago (at least). Maintenance is the gift that never stops giving.
https://www.construct.net/en/blogs/ashleys-blog-2/reality-long-term-software-1892