Learning

Swipe sideways

1. Learning6 Oct 2026 · #32Tutorial Gap FinderPaste the tutorial's outline and the step where you got stuck. Get the missing lesson, not a repeat of the steps you already did.InTutorial outline, a public CLI guide:→OutStopMedium

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   1. 0:00 Done vs stuckInstall and help worked on ledger 1.4.0. Step 3 points at a dashboard they do not have. Step 4 returns 401 bad signature.
   2. 0:08 The gapThe tutorial never says the secret in .env must be the same bytes the signature is computed over, or what header the local tool expects.
   3. 0:16 The lessonPut the placeholder secret in the env name the help text would show, restart the command, and compare the 401. No repeat of npm install.
   4. 0:24 StopIf it still 401s, the next paste is the header name from --help, not another install step.

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2. Learning24 Sep 2026 · #20Spaced Repetition MakerPaste notes you are trying to keep. Get cloze cards and a seven-day review schedule you can paste into any app.InNotes from a billing API afternoon. These are my words.→OutLeft outMedium

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   1. 0:00 Three notesWhere the key lives, what a retry returns, and the empty-key rule. The shared-user question is marked unsure.
   2. 0:08 The cardsCloze deletions hide 'invoice row,' 'the same invoice,' and 'rejected.' The unsure point is a question card with no invented answer.
   3. 0:16 The weekStarting 2026-09-25: day 1 all new cards, day 2 the ones they miss, then a short mix. No card appears before the notes support it.
   4. 0:24 Left outNo card claims two users may not share a key. That sentence was never in the notes.

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3. Learning12 Sep 2026 · #08Explain Like I'm ShippingLearn a concept by making the model explain the smallest version you could ship this week, then quiz the gap.InConcept: idempotency keys on a POST that creates an invoice.→OutThe quizEasy

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   1. 0:00 The constraintA TypeScript billing API, Postgres already there, one afternoon, no consensus lecture.
   2. 0:08 The tiny versionA unique key column on invoices, the client sends it, a retry with the same key returns the same invoice row.
   3. 0:16 Left outNo new queue, no vendor, no lecture about exactly-once delivery in the abstract.
   4. 0:24 The quizThree questions: where the key is stored, what a second POST returns, and what you do if the key arrives empty.

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