It depends on your goal. Is your side project aiming to become a side business or an experimentation to learn new things? If it's a business, it's important to

It depends on your goal. Is your side project aiming to become a side business or an experimentation to learn new things? If it's a business, it's important to get things done. If it's for fun and to experiment, sometimes the end goal is not to actually complete it. The endeavour itself will be reward enough, perhaps. It's true that a lot of programmers do jump from shiny new tech to the next shiny new tech. If it's to start a business, it's probably best to stick with boring stacks.