Start contributing to open source projects you’re interested in. Alternatively, what I did last time was start my own company and then use the most appropriate

Start contributing to open source projects you’re interested in. Alternatively, what I did last time was start my own company and then use the most appropriate technology (Elixir in my case) despite not having it on my resume. The downside though, was financial turbulence and ultimately a bit slower learning on the tech side than if I’d been a FT employee using it instead of also being busy talking to customers, doing support, marketing, etc.