How Long Did It Take You to Get Isotope to the Point Where It Was Ready to Be Released?

How long did it take you to get isotope to the point where it was ready to be released? And how did you juggle that with your work responsibilities? I didn't really have a timeline and this because it was a side project, I was able to let myself have enough breathing room. It probably took me about three to four months to launch it. This is my first time kind of working on a project like this, even as a side project.