Notes

Stop ending up in spam: configuring SPF, DKIM and DMARC on your domain

An explanatory guide to authenticating your email domain: understanding why Apple Mail is stricter than Gmail, putting SPF, DKIM and DMARC in place, and moving from a domain that spams to a domain people trust.

Installing an Omada business network: a field report

A field report on setting up an Omada network with VLANs, LAG, Wi-Fi, ACLs and separation of uses in a combined residential and professional environment.

IT stewardship tools that aren't really stewardship tools

A dashboard, an Excel export or a monthly report is not enough to run an IT estate. How to tell real stewardship tools from false friends.

Custom development vs. SaaS tools: when should you build?

Buy an existing product or have a custom solution built? The decision criteria for the leader of a smaller company.

Giving AI access to your internal documents

How to let an AI agent answer your teams' questions using your own internal documentation, without exposing your data.

Automation without code: what AI agents change for smaller companies

AI agents make it possible to automate complex tasks without traditional development. What that changes in practice for a smaller company.

AI agents in business: beyond the chatbot

AI agents are not limited to chatbots. They can automate entire business processes, from monitoring to decision-making.

Open source in business: benefits, risks and good practice

Why and how to adopt open source in business, between cost savings, digital sovereignty and keeping the risks under control.

Building an IT budget for a smaller company: line items and ratios

The line items in an IT budget, benchmark ratios by sector, and a simple method for building and tracking your budget.

Migrating email in a crisis

How to organise an emergency email migration when the supplier lets you down or the infrastructure gives way.

Hosting in France: why and how to migrate to a sovereign cloud

Between GDPR and the US CLOUD Act, hosting data in France is becoming a strategic issue. An overview of the sovereign alternatives and of the migration itself.

GDPR: the checklist for leaders of smaller companies

An actionable checklist for bringing a smaller company into GDPR compliance, with the real obligations and the practical priorities.

Vendor lock-in: how to avoid becoming dependent on an IT supplier

Understanding vendor lock-in, spotting the warning signs and putting concrete strategies in place to preserve your technological independence.

Change management: driving adoption of a new business tool

Why business tools fail without change management, and the concrete steps that secure adoption by the teams.

The 7 essential indicators for steering your IT estate

Seven practical KPIs every business leader should track in order to steer their IT estate effectively and make the right decisions.

AI in smaller companies: five practical, accessible use cases

Five practical applications of artificial intelligence that smaller companies can reach today, with no heavy infrastructure and no large-corporate budget.

Disaster recovery: building a plan for a smaller company

Why most smaller companies have no disaster recovery plan, and how to build one pragmatically, step by step.

Technical debt: understanding it and reducing it without a full rebuild

What technical debt is, how it builds up in a company's IT estate, and a pragmatic approach to reducing it step by step.

Cutting your SaaS licence costs: method and tools

A concrete method for identifying unused SaaS licences, rationalising subscriptions and renegotiating contracts.

APIs and integration: why connect your business tools

Understanding what an API is in plain terms, why integrating business tools is a productivity lever, and where to start.

Checklist: auditing a smaller company's IT estate in 10 points

A practical 10-point checklist for auditing the IT estate of a smaller company and quickly identifying where to improve.

How to choose an IT supplier: an evaluation framework

Concrete criteria and a scoring framework for evaluating and comparing IT suppliers before you commit.

Ransomware in smaller companies: 8 practical prevention measures

Smaller companies are a prime target for ransomware. Here are 8 practical, accessible measures that drastically reduce the risk.

Choosing an ERP for a smaller company: how to get it right

The essential criteria for selecting an ERP that fits a smaller company, the classic mistakes to avoid and an overview of the solutions on the market.

The 3-2-1 backup rule: protecting your data effectively

The 3-2-1 rule is the foundation of a reliable backup strategy. Here is how to apply it in practice in a small or mid-sized company.

Writing an IT specification: structure and mistakes to avoid

A standard structure for the specification of an IT project, and the most common mistakes that put the success of the project at risk.

How to remove the signature separator in Thunderbird

A step-by-step guide to removing the automatic dashes above your email signature in Thunderbird. A simple fix through the Config Editor.

Nextcloud, the update is stuck

Updating a Nextcloud instance hosted at Gandi but the update is stuck? Here is the solution.

Linux commands cheat sheet

A listing of Linux commands.

The NATO phonetic alphabet (Alpha, Bravo Charlie, Delta...)

How to spell your name over the phone in a foreign language.

Multiple Bitbucket accounts with SSH on a single machine

A complete guide to setting up and using several Bitbucket accounts (personal and work) on the same workstation with separate SSH keys.