Intellectual Guides

Practical, evergreen guides on money, productivity, and the web.

Welcome — this is a growing library of practical, evergreen guides on personal finance, productivity, developer tooling, and the web. No hype, no breaking news: just explainers that stay useful. Browse the latest below, or jump into a section from the sidebar.

Latest articles

Respecting Remote APIs: Backoff, Queues and Caching
How to treat remote APIs as shared resources: jittered exponential backoff, queues for backpressure, caching stable responses, batching and …
Sep 27, 2026
Handling Secrets When There Is No Platform Team
A practical baseline for solo developers: one source of truth, least-privilege keys, a rotation you have rehearsed, and a revocation list for the day …
Sep 27, 2026
Ten Configuration Habits That Keep Automations Alive
Config files, one secret store, timeouts, exit codes, dry runs, idempotent steps, log rotation, pinned versions: ten habits that stop jobs going …
Sep 26, 2026
Prompt Hygiene: Six Rules That Survive a Model Swap
Six prompt rules that keep working when you switch models: constraints first, labeled context, one example, a fixed output shape, a definition of …
Sep 26, 2026
Local Inference Hardware: Reading the Cycle Without the Hype
Tradeoffs in unified memory, consumer GPUs and NPUs for local LLM inference, what is genuinely unknown, and the rule for when renting still wins.
Sep 25, 2026
Agent Memory in Production: What Holds Up and What Doesn't
Transcript replay, structured state files and vector retrieval compared: where each holds up in production, where it degrades quietly, and what to …
Sep 25, 2026
The Solo Operator's Tool Sprawl Problem, and When to Stop
Every tool you add buys a feature and sells you a maintenance surface. How to hold a small boring stack and the tests tool number N+1 must pass.
Sep 24, 2026
Build, Buy, or Glue: How to Choose an Automation Route
Build it, buy it, or glue existing tools: compare the three automation routes on time to first value, upkeep, failure visibility and lock-in.
Sep 24, 2026
Feishu, Notion or Plain Docs: Which Reads Best to an Assistant
A practical comparison of Feishu, Notion and plain Markdown docs on structure, fields, permissions and API access — plus how to choose by team …
Sep 23, 2026
Backtesting an ETF Strategy Without Fooling Yourself
A practical methodology for avoiding lookahead bias, dividend and cost omissions, single-window testing, and overfitting when you backtest an ETF …
Sep 23, 2026
Your First Automation in Four Hours: An Hour-by-Hour Build Plan
A realistic four-hour plan for your first AI automation: scope it, build the happy path, handle the failure you'll hit, then schedule, log and disable …
Sep 22, 2026
Swapping Models on a Single-GPU Box Without Downtime Drama
A step-by-step procedure for swapping vLLM models on a one-GPU machine: drain traffic, confirm VRAM is released, health-check with a real request, and …
Sep 22, 2026

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