Comment by pavelai

You can do a blog about retro programming to find clients which have your stack. I read about group of developers who were writing in Cobol in 2010s. Because this software were in use and still in use somewhere. The guy who wrote about it was a developer with decades of experience, but no one wanted hire him because of the age. Then he found other developers in the same situation and run a company to support software written in outdated languages

You can write old-styled software for those who have nostalgic feelings about good old times, or support solutions written for old platforms. Instead of been thinking about it as of trash, think about it as it is retro