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Typst uses constrained memoization (comemo) and pure function design to make the language and compiler work together, achieving efficient incremental compilation and real-time preview. The article details the design ideas of layout caching, module evaluation memoization, function purity, and the introspection system.
A Rust developer profiles and optimizes the incremental rebuild time of SQLx tests, identifying bottlenecks like debuginfo generation and proc macro overhead, and proposes improvements to speed up test compilation.
The new Zig ELF linker now supports fast incremental compilation with external libraries and C sources, enabling rebuilds in milliseconds on x86_64 Linux.
A technical blog post critiques query-based compilers, arguing that their effectiveness is limited by the dependency structure of the source language, particularly the avalanche effect where changes can propagate widely, making incremental updates often as expensive as a full rebuild.