There are a few at companies that I've worked at. - Two previous companies have had hand-rolled timesheet tools (I'm sure there are plenty of alternatives now b

There are a few at companies that I've worked at. - Two previous companies have had hand-rolled timesheet tools (I'm sure there are plenty of alternatives now but both were probably built in the mid 2000s when there were't many alternatives) - A previous company had a integration environment booking tool - not sure why a custom solution was needed as any calendar tool should work but maybe there were some specific requirements (I was never a user of the tool) - A previous company had a tool for release management that pull in a bunch of items from Jira and marry them up with items in version control to generate a set of release notes in a specific format - no idea if there are any alternatives for this one but I think it had a pretty specific set of requirements None of the above would have been worth trying to monetise in my opinion.