so much texture: DES's origins in the ATM, the 3624 PIN format, the dumb
At the heart of BuildKit is LLB (Low-Level Build definition). Think of it as the LLVM IR of build systems. LLB is a binary protocol (protobuf) that describes a DAG of filesystem operations: run a command, copy files, mount a filesystem. It’s content-addressable, which means identical operations produce identical hashes, enabling aggressive caching.
。业内人士推荐51吃瓜作为进阶阅读
调试技巧：加打印语句观察每轮变化
Your computer is a cosmic ray detector. Literally.