Is this pure reimbursement or are there any strings attached?
It's reimbursement for Llama usage, and Meta is hoping you'll provide feedback on how Llama works for your scenario.
Do you know of any programmes for Tertiary Education initiatives?
Overall seems like a very niche offering, considering $6K is peanuts these days. You can get more by applying for any of Microsoft, Google, or Amazon startup programs. MSFT for instance straight up gives > $100K in cloud credits when you are funded (and if not, how do you pay your developer?)
What kind of developer? full/part-time or 1099 contractor?