Side projects which are basically a "hello world" in framework X are not impressive so don't waste time with polluting your Github with N hello world examples.
Instead create something more substantial, either contribute directly to the library/framework which is core of the new tech or build some useful new addition to the ecosystem.
Write some blog posts along the way as you learn and become more and more familiar with the technology and different edge cases.
This, from my experience will get you a lot of interviews.
Also, during the interviews, don't say things like you are pivoting, instead tell them that you are expanding your expertise in a new direction or making a next step in your career. Or that you want to work with this new tech on a daily basis and this job would allow you to do that.