define build. product? side/night project? consultancy? there will be still a lot of (SRE) work building out hybrid cross-cloud that goes deep into cost and performance optimization - that AI cannot solve (e.g. have direct access to engineering in mid/big tech). if product building is your thing - focus on problems in your domain. make a list. ask others how painful it is vs how much money it can be worth etc. make it fun. my2cts good luck!