Initial Infrastructures · Rouen§ 01
Custom web application

Custom web app,code yours.

For founders and operations: custom CRM, SaaS MVP, automation, business dashboard. Modern Next.js + Postgres stack, French hosting. No no-code platform, no per-user subscription.

Book my scoping call
January 2026 · 3 spots available
CRM custom · live
ADMIN
Leads · 24h
47
Pipeline
184 k€
MRR
8 940 €
Récents leadsAuto · webhook
A
ACME Corp
Pierre M. · #348
Hot
L
Lambda SAS
Sarah D. · #347
Demo
B
Beta Inc
Jean R. · #346
Lead
G
Gamma Co
Marie L. · #345
Lead
Stack
Next.js
Données
Postgres
Hébergement
Rouen
Rouen studio⊹Next.js + Postgres + TypeScript⊹No Bubble, no Retool⊹0 € per-user fees⊹Code yours, French hosting⊹
5 WK
For a standard MVP
0 €
Per-user fees
100%
Code yours, French hosting
§ 02
— Four scopes of work

What we build, concretely.

01 / 04
CRM.
Custom internal tool · from €5k

CRM or internal tool

To replace Excel + emails or a generic Salesforce. Data model fitted to your real processes, not a forced template.

  • Data model adapted to your business
  • Authentication and fine-grained rights
  • Business workflows (assignments, validations, stages)
  • CSV / PDF exports, API integrations as needed
02 / 04
MVP.
Founder SaaS · from €8k

SaaS MVP

To validate your market in a few weeks with a product that holds. Authentication, Stripe payment, freemium or trial model included.

  • Authentication (email, OAuth)
  • Stripe payment (subscription or one-time)
  • Scoped user onboarding
  • Product analytics (events, funnels)
03 / 04
Automation.
Workflows and scraping · from €3k

Automation and integrations

To eliminate repetitive tasks eating your operations. Targeted scraping, API integrations, event-triggered workflows.

  • Business data scraping (competitors, leads)
  • API integrations (Slack, Notion, accounting, etc.)
  • Webhook or cron triggered workflows
  • Targeted notifications and alerts
04 / 04
Dashboard.
Custom reporting · from €4k

Dashboard and reporting

To visualise the business KPIs that actually matter. Connected to your data, not a patched-up Looker Studio.

  • Custom business KPIs and charts
  • Time filters, drill-down, exports
  • Connectors to your stack (DB, API)
  • Per-role access (board, ops, sales)
§ 03
— We hear it all the time

Six pains we know.

01
Off-the-shelf forces
Salesforce or HubSpot forces you to bend your processes to their logic. In the end, 60% of paid features are useless to you.
02
Bubble caps out
The no-code POC works, then comes the 50th custom feature and the platform cracks. Nightmare migration ahead.
03
Excel everywhere
Your operations still run on Excel + emails. No one knows who has the latest version, someone overwrote data last week.
04
Salesforce nibbling
150 € per user per month. On 30 people, that's €54k/year. For a tool no one really uses.
05
Freelancer gone
The freelancer who built your app is gone. No one understands the code, no docs, the repo is on his machine.
06
Unmaintained tool
Your internal tool runs but in survival mode. No evolution in 2 years, users bypass it via Excel.
§ 04
— Who it's for

The right match.

We're a good fit if
  • You have a business need not covered by off-the-shelf
  • You're validating a SaaS MVP before fundraising or bootstrapping
  • You pay Salesforce or HubSpot and find it heavy
  • You want to automate a time-consuming workflow
  • You want to own your code, not depend on a no-code platform
We're not the right choice if
  • Bubble or Notion is enough for your case (and that's great)
  • You're looking for an enterprise ERP (Sage, SAP, Odoo Studio)
  • You want to start with no scoping call
— Decided?

30-min video call about your project · no commitment.

Book a call
§ 05
— How it works

Three steps. Not one more.

01

Scoping call.

02

Design + build.

Live within 5 to 12 weeks

03

Go-live.

Typical use cases

What we build · for real

Four concrete recent or typical projects. Scope, technical choices, and budgets are indicative (each project is custom-scoped).

Custom CRM for consulting firm

Consultant management, client assignments, mission tracking, invoice generation. Replaces Excel + emails. ~25 internal users. €12k, 8 weeks.

SaaS analytics dashboard

MRR reporting, cohorts, churn, onboarding funnel. Connected to Stripe + Postgres + GA4. Reads product events to identify friction. €7k, 5 weeks.

Competitor scraping automation

Daily competitor pricing scraping, normalisation, Slack alerts if delta > 10%, historical dashboard. For a D2C brand. €4k, 3 weeks.

Bootstrap SaaS MVP

Auth + Stripe payment + 3 core features + product analytics. For a solo founder. Validated in 6 months with 200 paying users. €14k, 8 weeks.

§ 06
— Pricing per scope
€5k

Custom app. Code yours.

“Per-scope pricing, not consulting day-rate. Internal tools from €5k, MVP SaaS from €8k, automation from €3k. Firm quote after 30-min scoping, no mid-project amendments. Final ticket depends on the scope we frame together.
— Options de paiement
Internal tool / custom CRM
from €5k · by scope
SaaS MVP for founder
from €8k · by scope
Automation / scraping
from €3k · per workflow
— Included in every project
  • UX design and data schema
  • Iterative dev with weekly demos
  • Authentication and rights management
  • Git repo in your name from day 1
  • Transferable technical documentation
  • Training and full handover at delivery
— Beyond the MVP

Dashboard / reporting

from €4k

Custom business dashboards: KPIs, charts, exports. Connected to your data or external sources via API.

  • Interactive charts and drill-down
  • Filters and CSV / PDF exports
  • API or database connectors
  • Per-role permissions

Post-launch evolutions

from €290/mo

Monthly retainer for feature additions, fixes, user support. No long-term commitment.

  • Monthly dev hours pool
  • Priority bug fixes
  • Small evolutions without ad-hoc quotes
  • Tier-2 user support

Managed hosting

from €29/mo

French hosting in Rouen, monitoring, verified backups, updates. Optional: you can also host elsewhere.

  • Rouen datacenter, data in France
  • Verified daily backups
  • 24/7 monitoring included
  • Migration to another host possible
01
Direct.
vous parlez à celui qui code
02
À vous.
le code, le contenu, le domaine
03
France.
données et hébergement à Rouen
§ 07
— After go-live?

We stay reachable.

Once the app is delivered, here is how we support (or not) what comes next.

01
Full documentation and training
Technical documentation of code and data, admin user training during go-live. You know how to add a user, change rules, export data.
02
30-day post-launch warranty
During the month after go-live, any functional bug or defect is fixed at no cost. No "sorry, that's outside scope".
03
Evolutions · if you want
Monthly evolutions retainer or ad-hoc tickets. Opt-out with notice. Otherwise, you add features yourself or another dev picks up — the code is documented.
§ 08
— Frequent questions

About us. No fluff.

No-code is excellent for quickly validating a POC or ultra-simple tools. Beyond: performance limits, platform lock-in, subscription that climbs with users, and painful migration. On custom Next.js + Postgres, you pay for development once, you own everything, and any dev can pick up in 3 years. Break-even arrives around 5-15 active users depending on the platform.

§ 09
— Get started

Book your
scoping call.

30 min · no commitment · we identify the scope (CRM, MVP, automation, dashboard) and quote firmly.

0 / 400
Project type

No credit card. No aggressive follow-up. If we don't click, we forget each other. Cleanly.