nostr:npub1vqhxl0s8n5sa39hks3nyd4hqhzgtsmtn5qnjd5nsvxv9cpa8zcesgtv3yc We can't use much of modern supply chain management techniques. The reason for this is that the stuff we build is electronic and has to be maintained and replaced for 20-40 years. It also has a 5 year development cycle and the build contracts last 5 to 6 years. So by the time we are shipping units they already contain many obsolete parts, let along 40 years down the road.