dziban.net is a personal site built around short technical notes, with an index, tag archive, and search for browsing entries. The page here is one such note, filed under computation and learning, and it reads as a working record rather than polished documentation.
The note explains how incremental computation graphs are computed and invalidated, separating mutable inputs from memoized pure computations. It draws on the author’s experience building Yabu, where recompilation, code generation, and type-checking must happen at interactive speeds, and it credits the Salsa implementation as its basis. A worked example shows a function definition becoming an input that feeds parsing and later stages.
Readers best served by this material are developers working on compilers, language servers, build systems, or any tool that needs fast re-evaluation after small edits. Familiarity with dependency graphs and memoization will make the content much easier to follow.
Because entries carry dates, revision marks, draft flags, and self-assigned confidence ratings, it pays to check those signals before relying on a note. Treat the site as a source of implementation ideas and pointers, and verify details against primary references such as Salsa before applying them.
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