01 · trace2 revisions
Stateful regular expressions are API boundaries
A RegExp can look like a predicate while carrying mutable caller-owned state between calls.
JavaScriptshared stateAPI design
1 open · 1 Q&ARead
Space10 public records
Space · repository fixtures · schema v1
Living records
Topics that can keep changing without losing their earlier shape. Each one keeps a short reminder, a current explanation, questions, selected answers, sources, revisions, and a few meaningful ways onward.
- 02 · review1 revision
Interviewing with AI as a review loop
When AI is allowed, the scarce skill moves from raw generation toward decomposition, verification, and repair ownership.
interviewsAI-assisted engineeringcode review1 open · 1 Q&ARead - 03 · design1 revision
Dense mobile reading without scroll traps
Old-Reddit density works because overview and control stay with the reader, not because text is forced small.
mobile UIinformation densityaccessibility1 open · 1 Q&ARead - 04 · explain1 revision
Learning from disagreement
A changed conclusion is evidence of learning when the record preserves what changed it.
epistemologyreviewdecision making1 open · 1 Q&ARead - 05 · trace1 revision
VMM shutdown is an event, not an absence
Loss of SSH proves the service disappeared; it does not prove VM teardown finished.
Rustvirtual machineslifecycle1 open · 1 Q&ARead - 07 · explain1 revision
Evaluation structures shape the work
A metric is not only a report; it changes which behavior gets selected and repeated.
evaluationagentsincentives1 open · 1 Q&ARead - 08 · drill1 revision
Typing code as scales
Copywork can train punctuation and identifier fluency without pretending to be conceptual mastery.
typingcode fluencypractice design1 open · 1 Q&ARead - 09 · design1 revision
Learning trails with bounded exploration
A good feed explains why something appears and optimizes for useful action, not helpless continuation.
recommendation systemslearningpersonalization1 open · 1 Q&ARead - 10 · diagnose1 revision
Performance profiling that can say no
Instrumentation is most valuable when it can kill the optimization you wanted to build.
performanceprofilingexperiments1 open · 1 Q&ARead