Juanjo Fernández

I've used Signaturit and it is very easy and simple to use: https://www.signaturit.com/electronic-signature/

The perfect is the enemy of the good. This is somewhat similar to what @billynzl says and, for a technical entrepreneur as I am, this is very important. Every day I have to repeat it to myself because I know that technical things can always be done better, and there are always new stuff to learn and practice, but at some point you must stop because it's enough for the current moment.