For context, I have some hard currency, but I'm not spending it as yet. Electronic means of payment are fully functional - spend at the supermarkets, or pharmacies, without issue (other than supply issues at supermarkets of course). I haven't yet tried an international bank transfer into Ukraine, but I suspect it would be OK. I use an EU issued bank card, it works no problem (I also have a UA bank card as backup)
At the moment, therefore, the best thing to do: get money into the hands of regular Ukrainians. Personally, I have been raising funds from abroad and using the money to either give directly to Ukrainians (via bank transfers), or purchasing food etc and delivering it (in my local area) to the most vulnerable. At the moment, if people run out of money, they will run out of food.
Keeping people fed, keeps people sane. It's the most effective thing for Ukrainians that are remaining in Ukraine.
I would say the second most effective thing, is asking your politicians to do more - that may be providing lethal aid, humanitarian aid, or money, to Ukraine.
Further - logistics are incredibly compromised now, in every possible way. For the moment, money is the most effective solution. The situation is fluid - what Ukraine needed yesterday, is possibly not what they will need tomorrow. Money can be used immediately to help purchase what needed, with respect to what is actually available.
Internet in Kyiv has been stable the entire time.
Edit
> purchasing food etc and delivering it (in my local area) to the most vulnerable.
is there more information here? a way to do this over the inet that can be verified as legit and not a scam? If so, i can see this being very useful. I've been seeing people rent AirBnbs in Ukraine all of social media to get money in people's hands. I'm wary of fraud though, it's a situation ripe for fraudsters to take advantage.
The problem is, I see we both have our contact details empty on HN.
If you can suggest a way for me to contact you, I will reach out. I don't want to be compromised (which for me, is a bigger threat than normal right now).