Every published module, all in one place.
130 modules
Design & Art → Brand Identity
Rules for writing a logo design brief that produces usable concepts: brand attributes before visuals, audience and usage contexts, required sizes, color and monochrome requirements, references, and feedback vocabulary.
by @markdowners
Frameworks → Node & Express
Express API conventions: router/controller/service layering, centralized error middleware, async handler wrapping, edge validation, env-based config, graceful shutdown, and keeping routes free of business logic.
Business Docs → Other
Rules for writing performance reviews that are fair and useful: evidence-based specifics, behavior over personality framing, the SBI structure, balanced but honest assessment, forward-looking goals, and the no-surprises rule.
Writing → Copywriting
Rules for writing press releases journalists actually use: the inverted pyramid, leading with the newsworthy angle, headline and subhead construction, quotes that sound human, boilerplate structure, and what journalists skim for.
Data & AI Features → RAG & Embeddings
Rules for building retrieval-augmented generation systems that actually retrieve the right thing: chunking strategy, metadata filtering, hybrid search, retrieval evaluation, citation, and re-indexing discipline.
Video & Audio → Transcription
Rules for cleaning up raw transcripts into readable text: verbatim versus clean-read decisions, filler removal, speaker labels, punctuation for spoken rhythm, and inaudible/crosstalk conventions.
Payments → Webhooks
How to receive any provider's webhooks safely: signature verification, idempotent processing, fast acknowledgment, and ordering assumptions.
Social & Marketing → Content Calendar
Rules for building a content calendar that survives contact with reality: content pillars before individual posts, sustainable cadence, batching, a repurposing matrix, timely-vs-evergreen slotting, and a review loop.
Security → File Uploads
Handling user file uploads safely: validating type by content not extension, enforcing size limits, re-encoding images, storing outside the webroot, random filenames, never executing from upload dirs, malware scanning, and correct serving headers.
Personal Productivity → Journaling
Rules for building habits that actually stick: start absurdly small, anchor to an existing routine, track streaks without perfectionism, design the environment for the behavior, use identity framing, and build one habit at a time.
Rules for writing landing page copy that converts: one page one goal, a headline that states the value promise, hero-to-proof-to-objections-to-CTA hierarchy, specificity over adjectives, social proof placement, and CTA wording.
Personal Productivity → Cooking Recipes
Rules for meal planning that survives a real week: plan around the actual calendar not an ideal one, use a repeatable rotation with one new dish, group the grocery list by store section, batch-cook overlaps, and treat leftovers as planned meals.
Database → Nosql
Model document databases like MongoDB correctly: design for access patterns rather than normalization, choose embed vs. reference deliberately, denormalize with an explicit update plan, avoid unbounded arrays, index for real queries, and validate schema even in a schemaless store.
Personal Productivity → Other
Rules for a personal budget that survives real spending: track before optimizing, set category budgets from actual history, automate pay-yourself-first savings, split fixed from variable costs, run a monthly review, build a buffer, and skip shame accounting.
E-commerce → Catalog
Rules for ecommerce product description copywriting that converts: outcome-first leads, keyword placement, feature-benefit pairing, sensory language, and objection handling.
API & Backend → Serverless
Write serverless and edge functions that perform well and cost predictably: stateless handlers, cold-start budgets, timeout and memory sizing, idempotency for retries, database connection pooling, local dev parity, and cost awareness.
Study & Research → Study Plans
Rules for building study plans that actually prepare someone for an exam: backward planning from the exam date, spacing and interleaving, active recall over rereading, realistic session sizing, weak-topic prioritization, and review cadence.
Personal Productivity → Task Management
Rules for a weekly review that stays under an hour and actually resets the system: a fixed slot, emptying every inbox, honestly reviewing what slipped and why, planning next week's three outcomes, and reconciling calendar against tasks.
Writing → Resumes Cover Letters
Rules for writing a cover letter that earns its place: 250-350 word limit, a company-specific hook, evidence over restatement, a direct close, and honest handling of gaps or career changes.
UI & Frontend → Email Templates
How to build HTML emails that actually render across clients: table-based layout, inline CSS, the 600px width convention, alt text and image fallbacks, dark mode quirks, plain-text versions, and cross-client testing.
Study & Research → Flashcards
Rules for writing spaced-repetition flashcards that actually build recall: the minimum information principle, active-recall phrasing, cloze deletion, and deck structure for Anki-style study.
Rules for writing headlines and titles across formats: specificity over vagueness, curiosity paired with a real payoff, using numbers and brackets effectively, length bands per channel, banned clickbait patterns, and testing variants.
Translation & Languages → Language Learning
Rules for structuring language learning around what actually builds fluency: comprehensible input volume, speaking early despite errors, frequency-first vocabulary, sentences over isolated words, spaced review, tolerating ambiguity, and handling plateaus.
Study & Research → Other
Rules for taking notes that are actually usable later: own-words capture over transcription, atomic notes with links, separating capture from organizing, progressive summarization, retrieval-friendly titles, and a review loop that actually happens.