triviatise hits most of the topics already. But I have some comments to add. 1) Congratulations! You've got a great opportunity here. 2) There's nothing wrong

triviatise hits most of the topics already. But I have some comments to add. 1) Congratulations! You've got a great opportunity here. 2) There's nothing wrong with not using the cool-kids tools. The cool kids get lots of attention, but they might not get lots of profit. Remember, even twitter's bottom line is negative. Pay off the technical debt over time, don't go gung-ho all at once. I would seriously work on your sales strategy. Get some more sales done and diversify in addition to that one 80% client. 3/4) I wouldn't do this. Target some low-hanging fruit to attack and bootstrap growth. Good luck!