Custom software development and business applications
Off-the-shelf tools do not follow your business rules. ISOMORPH builds the application that does: specific, maintainable, hosted in France.
Most representative plugin
npm install @isomorph-agency/strapi-plugin-linkCount the hours your teams spend working around your current tool: that is the loss custom software eliminates. Not a hypothetical gain, a loss already in progress.
For an institutional website or a public-facing web application, see our custom web development page.
What we build
Process modelling
We document your business logic before writing the first line of code. Every rule is recorded, every exception validated with your teams.
Application development
Strapi v5 for data management and access rights, Next.js App Router for the interface, strict TypeScript for long-term maintainability.
Business interfaces
Dashboards, complex forms, multi-step workflows. The interface is designed for your real users, not for a demonstration.
Hosted in France
Deployed on Scaleway (French servers), PostgreSQL, verified daily backups. Your data does not leave French territory.
Why we host on French infrastructure (in French): our article on sovereign hosting.
The code is yours
Our plugins are published under MIT licence and our stack is documented: it is the same code, written the same way, on your projects as on ours.
Takeover and maintenance
Audit of the existing codebase before any work. Error monitoring with Sentry, security updates, feature additions on demand.
Our code, installed by other teams
| Package | Version | Downloads (30 days) |
|---|---|---|
| @isomorph-agency/cookie-consent | 1.0.7 | 751 |
| strapi-plugin-cookie-consent | 1.0.4 | 675 |
| strapi-plugin-cookie-consent-v4 | 1.0.5 | 586 |
| @isomorph-agency/link-resolver | 0.1.2 | 425 |
| @isomorph-agency/strapi-plugin-link | 0.1.1 | 275 |
npm registry snapshot, July 30, 2026, covering June 30 to July 29, 2026. Each figure is verifiable package by package on npmjs.com.
Two MIT-licensed repositories on github.com/agenceisomorph: cookie-consent, strapi-plugin-link-v2.
Four standards, on every project
RGAA 4.1.2
Accessibility
RGESN
Eco-design
Core Web Vitals
Performance
OWASP Top 10
Security
How a project runs
01
Written scoping
Scope, business rules, interface layouts. This document is delivered before any development starts.
02
Architecture
Data modelling, access rights, API structure.
03
Module-by-module development
Each module is reviewed before the next begins.
04
Acceptance testing
Tests on a staging environment with your teams.
05
Go-live
Deployment, training, documentation.
We quote after a written scoping exercise, never from a rate card.
Let's talk about your project
Describe your business process and the tool you use today. We come back with a written scoping document.