Being a software engineer, the best thing you can do is to invest in your typing speed. Me

I know this might sound odd to you; but, your best Tool of War is a Keyboard. The earlier you can get done with this step, the better. It will save you precious time in the long run and will also help you to maintain focus on one thing: Innovation. 

The amount of time saved will be enormous knowing how to use a keyboard without looking at it. You can save almost 21 days per year if you know how to type efficiently. I have seen it in my professional life. It is like already knowing how to cook; so, you can focus on new recipes. Once you have that recipe all planned in your mind, it is show time and you can get over with the typing stuff fairly quickly; like Sun Tzu said in his writing The Art of War: 

There is no instance of a country having benefited from prolonged warfare. – Sun Tzu

Hence, you can design the software architecture, plan the workflows and type it all out quickly to get the MVP out as soon as possible. Otherwise, you might get into the “Just One More Feature” MVP trap. You best bet is to get in quick and get it done already. As Sun Tzu said: 

In war, then, let your great object be victory, not lengthy campaigns. – Sun Tzu 

Fighting the Keyboard Switches and Keys should be the least of your worries!