The guide library20

Practical guides to software decisions.

Criteria, examples and trade-offs for choosing software, automating work and protecting your systems.

20 of 20 guides

Scope, cost and the right first version.

Guide · Technical decisions
Mobile app or website: what does your business need?
Compare a responsive website, PWA and mobile app by the task, offline requirements, phone features and ongoing maintenance.
Guide · Apps and software
Demo, Prototype or MVP: What Your Idea Needs
Demo, prototype and MVP are not the same. What each one is for, what it includes and how to choose the right first step for your app or software idea.
Guide · App development cost
App Development Cost: What Drives the Price
How integrations, user accounts, payments and scope affect app development costs, and what to check before asking for a quote.
Guide · Hiring a developer
Freelance Developer or Agency: How to Decide
Compare a freelance developer and an agency by project scope, capacity, communication, handover and cost. Questions to ask before choosing.
Guide · Technical decisions
Custom software or SaaS: when to build and when to buy
Compare existing software, configuration, integrations and custom development by workflow, maintenance costs and the ability to export your data.

How to choose between rules, integrations and AI, and decide when a person should review.

Spreadsheets and internal tools
Automate Excel or build an internal tool?
When to keep Excel or Google Sheets, automate the repetitive work or move to an internal tool. Decision criteria, a worked example and a migration plan.
Guide · AI and automation
AI Agents for Small Businesses: What to Automate
A practical way to decide whether a task needs an AI agent, a fixed workflow or a person, with examples, safeguards and a small pilot plan.
Guide · Business automation
Business Process Automation: When It Pays Off
Business process automation for small companies: which tasks can be automated, when the work pays off and how to start with one process.
Guide · Business automation
Bots, chatbots and RPA: what can they do for a business?
What is a bot? What does RPA do? See how they can handle customer requests and repetitive office work together, and when a simpler solution is enough.

Protecting applications, credentials, networks and connected devices.

Guide · AI and security
AI hacking agents: progress and limits
What Google, Mozilla and studies of GLM-5.3 reveal about AI hacking agents, their limits and the security of your website or application.
Guide · Mobile app security
Mobile App Secrets: Decompilation, API Keys and Firebase
What someone can recover from an Android or iOS app, why a Firebase API key is usually not a secret, and when it becomes one, as with Gemini.
Guide · Network security
Small Business Network Segmentation: A Practical Guide
How to separate staff devices, guest Wi-Fi, IoT and servers on a small business network, and verify that access rules work.
Guide · Devices, robotics and AI agents
IoT, Robotics and AI Agents for Small Business
What connected devices, an ESP32 prototype, robotics and AI agents can do for a small business, what a prototype proves and where a person still reviews.
Guide · Technical decisions
From a connected-device idea to a useful prototype
Want a sensor or connected device for your business? Learn what a first prototype should prove, what affects the cost and when custom electronics are needed.

Technical SEO, useful content and complete websites in several languages.

Guide · Technical decisions
A professional website on a small budget: what to build first
Plan an affordable business website: essential pages, contact flow, templates, recurring costs and a brief that makes quotes comparable.
Guide · SEO and generative search
SEO and GEO for AI Search: What Actually Matters
A practical guide to SEO and AI search visibility: crawler access, useful content, multilingual pages, structured data and measurement.
Websites and continuity
LaLiga IP blocks in Spain: check your website and keep access
Why an unrelated business website can stop loading during football matches, how to check for a LaLiga block and how we keep the same address reachable.
Guide · SEO and AI visibility
Why is my website not showing on Google?
Find out whether Google can see your website, why a published page may not appear in searches and what to ask the person who manages it.
Guide · SEO and AI visibility
How to measure AI citations, referral traffic and enquiries
A practical record for separating AI citations, impressions, visits and enquiries. What to check in Search Console, Bing and website analytics.
Guide · SEO and AI visibility
A multilingual website: what should you translate?
Plan a website in several languages: which pages to translate, how visitors switch language and what to ask your developer to check for Google.