Why this field log exists
Useful lessons often disappear once a release is done. Writing makes the reasoning reusable: what changed, why one path won, and which constraints mattered.
Building, then writing down what held up.
Caotian is an independent builder working across product design and software development. This site is a field log for decisions, trade-offs, failures, and shipped work.
What you will find here
Independent development, product scope, offline-first software, practical architecture, and honest notes from work that reached a usable state.
Keep exploring
Browse the writing archive, inspect shipped work, or subscribe through the bilingual RSS feed. Project and repository links are published with the relevant work when available.