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Practical guides

Answers, examples and sources. Start with a question you need to solve.

Why castling exists: from the king's leap to a one-move fortress

A short origin story of castling — medieval king leaps, stronger queens, and the modern FIDE move — plus when to castle early in an online Board Atlas game.

From rules to skills: create, migrate, and find Agent Skills that stick

Turn ad-hoc agent rules into portable SKILL.md packages: write them well, migrate with Cursor's /migrate-to-skills, find installs via skills.sh, and read before you trust.

Europe raised, America held: what 2 vCPU / 4 GB costs on 1 October 2026

A sourced briefing on netcup G12.5, IONOS and Hetzner hikes versus flat US big-five list prices for 2 vCPU / 4 GB, with commitment, disk, renewal and VAT checks.

Merge PDF files in the right order

Prepare the source documents, combine them in the intended sequence, and check the downloaded PDF before sharing it.

Prepare an image for a bead pattern

Choose a readable subject, plan the grid and review the colour choices before committing to a physical pattern.

Check hackathon fit before spending a weekend on it

Use the directory to discover an event, then verify eligibility, deadlines and submission rules with the organizer.

Evaluate a working demo with a reproducible task

Pick one task, record the input and expected result, and distinguish a live capability from a mock or placeholder.

Your first VPS: a checklist before choosing a plan

Start with the workload and total monthly cost. This checklist helps you compare a small website, Docker host or learning server without confusing capacity with performance.

Douyin and Instagram: compare posts at the same age

Review your own post metrics with a consistent window and clear denominators. A worked example shows how to turn the data into the next content experiment.

Turn a tarot reading into a journal prompt

Use the reading to name a concern, explore a different perspective and choose one action within your control.

Start a browser game without losing the controls

Check the game's own instructions, give the playfield focus and use short practice rounds before chasing a high score.

Read an agent skill before installing it

Check what the instructions can change, which tools they use and whether their assumptions match your project before giving them access.

Make the first online board-game session easier

Choose a short game, agree on the basic controls and explain the goal before the first move.

Learn a card game one turn at a time

Identify the goal, legal moves and end condition before focusing on speed or advanced strategy.

Choose a two-player game together

Decide whether you want shared-screen play, a remote session, cooperation or a light competition before picking a game.

Observe a Cat Town session before changing the settings

Watch a short scene, read the activity context and change one control at a time so you can understand what happened.

Check a bibliography with evidence, not a single score

Start with bibliographic fields, follow the matched records and inspect uncertain entries before citing them.

Linode 2GB in Singapore costs 12 USD per month

The plan pairs 2 GiB RAM with 1 shared vCPU, 50 GiB SSD and 2000 GB transfer for small workloads

One VPS a day: DigitalOcean Basic Regular 2 GiB for twelve dollars

A mid-small shared droplet with twice the memory of the 1 GiB starter, checked against DigitalOcean public pricing for standard regions.

Frontend-design skill update rejects generic defaults

The 2026-09-03 change to skills/frontend-design/SKILL.md requires distinct palette, typography, and hero choices.

One VPS a day: Nanode 1GB in Singapore for five dollars

A small shared plan from Akamai / Linode, priced for light personal work, with a quick check of what each dollar buys.

Five skills worth a closer look: auto permissions, CLI attach, and keepers

A Managed Agents permission update in Anthropics skills repo, plus practical tools for installing skills and checking a local web app.

One VPS a day: a six-dollar starting point for a small site

A modest server for a modest workload, and a useful reminder to filter for enough memory before comparing price ratios.

Installed a skill? Remember to keep it current

A correction in official skill documentation offers a reason to revisit the skills you use, check their updates and keep a repeatable test.

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