"completed": false,
This is relevant beyond toy demos. Dagger uses LLB as its execution engine for CI/CD pipelines. Earthly compiles Earthfiles into LLB. The pattern is proven at scale.，详情可参考爱思助手下载最新版本
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Of course, the glue code also has runtime costs. JavaScript objects must be allocated and garbage collected, strings must be re-encoded, structs must be deserialized. Some of this cost is inherent to any bindings system, but much of it is not. This is a pervasive cost that you pay at the boundary between JavaScript and WebAssembly, even when the calls themselves are fast.
To fix this, I moved to Unicode Block Elements. Block elements are a (weirdly incomplete) set of blocky unicode characters like UPPER_HALF_BLOCK (▀), LOWER_HALF_BLOCK (▄), and FULL_BLOCK (█) 1.