On multiple occasions I've shipped things with the Nova Poshta service to units very close to the front line. In some cases they're getting picked up at Nova Poshta shipping outlets so close to the front lines that FPV drones are a genuine risk.
It just works. Nova Poshta has a nice app. There's complete and accurate tracking, you can easily redirect shipments on the fly to different locations and even different people, and they have package lockers everywhere. The staff are very friendly and go above and beyond to help out. I once showed up at a Kyiv branch with four used truck tires covered with mud, without any packaging, and said I needed to get them to a unit in Sloviansk, a town 20kms from the front lines. They handled everything for me for the equivalent of ~$30 and they showed up the next day.
If Ukraine can manage shipping at scale in the middle of a war, WTF is Africa doing? Why do you have to rely on sketchy shit like trusting random airline passengers getting some extra cash on the side? You can't have a modern economy without good shipping services.
I'm reminded of the time I visited both Kyiv and South Africa in Febuary 2024... Cape Town and Johannesburg had more scheduled blackouts than Kyiv, even with Russia actively trying to destroy the electricity grid. The GDP/capita of South Africa is higher than Ukraine!