Production or site tracking
Who does what, where things stand, without phoning everyone: the real state of the business, on one screen.
Business software
Custom business software: a tool shaped to your hand, that saves you hours.
Management, planning, quotes, shop-floor tracking: software (or a business application) built around the way you work, from €690 for a first module, then hosted and monitored by the person who designed it.
Free first conversationFree detailed quote within 48 hThe code belongs to you
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Tracking, planning, quotes, client portal: the tools I build
When Excel stops keeping up: shared workbooks, double entry, fragile habits. It works, until the day it doesn't; one overwritten file, one absent employee, and nobody knows where the order stands.
Quotes and invoicing tied to reality
No more double entry between the spreadsheet and the accounting software: the numbers flow on their own.
Team planning
Absences, emergencies, rounds: one schedule, up to date, visible to everyone.
Client portal
Your clients check their documents and progress without calling you.
After delivery
How I host itHosting and maintenance, by the person who wrote it
Your software runs on my infrastructure: encrypted daily backups, continuous monitoring, evolutions as your needs grow.
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Custom tools already in production
A subscriber account space, an accounting firm's file platform and the tool that receives my client sites' enquiries, all three in production.
online
The myVFR account spaceLa Maison de Sébastien · app for VFR pilots
The subscriber's account, the subscription paid through HelloAsso, up to three devices, and the app download through a ten-minute link or a QR code. An email goes out a month, then a week, before renewal.
Read the case study (in French)online · monitoredThe CEC Expertises file platformAccounting firm · Thun-Saint-Martin, France
A file server behind the firm's firewall: about 640 GB of files migrated without downtime, individual accounts and role-based permissions, backups with an encrypted off-site copy.
Read the details (in French)onlineThe hub, my message backboneMy own tool · NestJS and PostgreSQL
It receives my client sites' forms, stores them in a database and forwards them, with a retry queue when a delivery fails. Its administration only answers on a private network.
Read the details (in French)03
What custom software changes day to day
Hoursrecovered every week from double entry and information hunting.
Zero lossdata lives in a database, backed up, no longer in a fragile workbook.
Autonomyyour team runs the tool day to day: training included at go-live.
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How a custom software project runs, and starting prices
After a free first conversation, everything is set down in black and white.
- 01Conversationwe look at how you actually workfree
- 02Quotescope line by line, within 48 hfree
- 03Buildin usable stages
- 04Go-liveyour data migrated, training
- 05Maintenanceevolutions, backups, support
Simple management toolone module, a few screensfrom €690 excl. VAT
Full softwareseveral modules, access rights, data migrationquoted per project
Hosting + maintenancemonitoring, backups, evolutionsfrom €19 excl. VAT / month
VAT not applicable, art. 293 B of the French tax code. Starting prices are indicative; every project gets a quote.
An online space for your clients rather than an internal tool: see custom web applications.
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Questions about custom business software
How long does it take?
A simple tool: 6 to 12 weeks after the deposit. Full software is cut into stages: you use the first module while I build the next.
Is our Excel data migrated?
Yes, migration is part of go-live: your history is imported and checked together before switching over.
What if you're gone in three years?
The code belongs to you, the data is exportable at any time, the infrastructure is documented: a peer could take it all over. It is written into the contract.
Is the development subcontracted?
No, I write the software myself. It is built on common technologies, TypeScript, PostgreSQL and Docker, not on a proprietary tool: that is what makes a handover to another developer possible.
Prices, timelines, how they compare with the market and when an off-the-shelf tool is enough (in French): prix d'un logiciel métier sur mesure.
The other services
WebsitesFast brochure sites and online stores, easy to find and easy to update.Automation and AIRepetitive tasks handed to scripts and AI, under control.Site rescue and careAn abandoned or broken site, a vendor who stopped answering: written audit from €290 excl. VAT, then repairs.
Also: custom web applications (from €890 excl. VAT)website hosting and maintenance (from €19 excl. VAT a month)
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Your custom software quote, free within 48 hours
Tell me how you work today, in your own words: what eats your time, what breaks, what you would like to never redo by hand.
- Reply within one business day
- First conversation and quote free, no strings