I can only guess to that as much as you can. I’m not handing out work or grants on behalf of Nu to anyone, neither being paid in any form or means other than the benefits (if any) of my own shareholdings. I would only do that when there is a public contract as I have done in the past for NuDroid.
My observation: in the last few weeks we have seen work around NuBot (look at the repo), we had an announcement about liquidity charts and some work on the blockexplorer and the work Sigmike has done on the client. Also had the handover of the forum which took some work. This beside the liquidity operations and operational expenses for websites, domanins, certs etc. Given the amount of 45k I hope there is an explanations for the gap. Possibly some future announcement on a piece of infra or backpay?