Français English

Louis Thissen

Freelance IT Professional in Luxembourg

Custom ticketing for parallel conferences

Custom ticketing for parallel conferences

The Challenge: Overcoming the limits of standard ticketing platforms
The organiser of a one-day professional event faced a major technical constraint: managing several parallel conference sessions. Unlike a classic concert (one ticket = one event), this day included three simultaneous conferences followed by a late plenary session. Existing ticketing solutions enforced a rigid "one ticket, one event" logic, making it impossible to register for a personalised path combining multiple sessions. It was crucial to let participants build their own agenda while still respecting room capacity limits.

The Solution: A flexible, intelligent registration platform
We built a dedicated ticketing interface specifically designed around a "speaker path" logic:

Multi-Session Registration: During the purchase flow, participants don’t just buy an entry ticket – they build their schedule. They select sessions across parallel time slots, with the system checking schedule compatibility and seat availability in real time.

Dynamic Capacity Management: Each session has its own seat counter. Once a session is full, it is automatically shown as "fully booked" for new registrations, without blocking access to other sessions or the main event.

Centralised Organiser Dashboard: The organiser has a real-time overview:

  • Registration Tracking: Who is registered for which specific session.
  • Fill-Level Gauges: Exact number of remaining seats per room to anticipate logistics.
  • Granular Access Control on Event Day: A dedicated scanning app allows staff to check not only ticket validity but also registration for each individual session. The system confirms whether a participant is expected in a given room and logs their actual presence.

The Results: Smooth logistics and an optimal attendee experience

  • Full freedom of choice for participants, who can personalise their day without technical constraints, boosting satisfaction and engagement.
  • Secure capacity management, avoiding overbooking of small rooms while optimising occupancy.
  • Reliable attendance data thanks to session-level scanning, providing trustworthy statistics on each talk’s performance.
  • Ability to bypass market rigidities, proving that a solution tailored to the specific business need is far more effective than an ill-fitting generic tool.

Collaborative wedding photo gallery with live projection

Collaborative wedding photo gallery with live projection

The Challenge: Capturing every moment without an official photographer
While organising my own wedding, I faced a classic but crucial challenge: how to retrieve the hundreds of photos taken by guests when there is no professional photographer? Traditional methods (WhatsApp groups, post-event email exchanges) quickly become chaotic: compressed image quality, scattered files, and loss of context (date, location). The goal was to create a smooth experience for guests while guaranteeing a complete, high-quality archive for the couple.

The Solution: An immersive sharing and projection platform
We built an event-focused web application designed for the here-and-now and for long-term memory preservation :

Simplified Collection via a Single Link: Guests access the dedicated gallery via a simple link. They can instantly upload photos and videos directly from their smartphone, with no complex account creation.

Live Image Wall Projection: To energise the evening, uploaded photos are displayed in real time on a large screen in the venue. This playful feature encourages guests to share their shots and creates immediate collective interaction.

Built-In Moderation: A filtering system lets the organiser approve photos before public projection or final inclusion in the gallery, ensuring only appropriate content is shown.

Full Quality and Metadata Preservation: Unlike social networks or messaging apps, the platform keeps the original files at 100% quality. It also preserves all EXIF metadata (geolocation, exact date and time), enabling precise chronological and geographic sorting in the final gallery.

Shared Post-Event Access: After the celebration, the newlyweds and all contributors can download the entire gallery, with everyone leaving with a complete visual memory of the day.

The Results: Perfect memories and amplified atmosphere

  • Exhaustive photographic coverage: thousands of photos captured from multiple angles and moments a single photographer would likely miss.
  • Engaging guest experience: live projection acts as both icebreaker and entertainment, making guests active participants in the celebration.
  • Durable digital archive: preservation of original quality and metadata provides a rich digital heritage, ideal for printed albums or geolocated memories.
  • Versatility: although born from a wedding use case, the platform adapts perfectly to other events (conferences, corporate parties, birthdays) requiring large-scale visual content collection.

This platform is accessible to all: EvePics.eu

Digitising orders and securing restaurant checkout

Digitising orders and securing restaurant checkout

The Challenge: Eliminating calculation errors and simplifying order taking
A restaurant owner was facing recurring issues affecting both productivity and margins: manual handling of receipts by a student team. The complexity of the menu, combined with numerous customisation options (extras, ingredient removals), frequently led to calculation errors, missed items on the bill, and slower service. These inaccuracies distorted daily accounting and created friction with customers at bill time.

The Solution: An intuitive, tailored point-of-sale (POS) system
We built a custom restaurant management application that perfectly mirrors the structure of the menu:

Visual, Intuitive Item Selection: The interface lets waiters build orders in just a few taps, with no manual price entry. Each item is preconfigured with its exact price.

Granular Management of Customisations: The system natively supports "à la carte" logic:

  • Adding Extras: Automatic price increase when adding options (e.g. extra cheese, special sauce).
  • Removing Ingredients: Ability to remove items based on customer preferences or allergies, clearly highlighted for the kitchen to avoid preparation errors.

Automatic, Error-Proof Calculation: The bill total is generated instantly and with full accuracy, regardless of the number of modifications applied to the order. No more manual checks or stressful mental maths for student staff.

The Results: Peace of mind in the dining room and preserved margins
Deployment of the tool fundamentally changed the restaurant’s daily operations:

  • Zero billing errors: Removing manual calculation eliminated revenue losses due to forgotten items or price mistakes.
  • Time savings and productivity: Order taking is faster, allowing staff to focus on welcoming guests and providing service rather than admin work.
  • Improved customer satisfaction: Accurate bills, correctly prepared orders and smoother service all contribute to stronger customer loyalty.

Structured backup and smooth restoration for a private client

Structured backup and smooth restoration for a private client

The Challenge: Securing the digital environment before a repair
A private individual had to send their laptop in for warranty repair due to a faulty keyboard. With the manufacturer stating that the machine would be fully wiped, the client risked losing not only personal files (photos, documents) but also their entire custom setup. Without being a technical expert, they needed a simple, reliable way to get their computer "back to normal" as soon as it returned, without having to reinstall everything manually.

The Solution: A one-off, structured and smart backup
We carried out a methodical intervention before the laptop was sent:

Inventory and Smart Sorting: Clear identification of critical folders (documents, images, desktop) and configuration items (browser bookmarks, passwords, software settings).

Centralised External Backup: Full, organised copy of everything onto a secure external drive. The folder structure was kept identical to simplify later restoration.

Guided Restoration Procedure: When the laptop came back (fresh from a software reset), we restored the data in logical steps: first the base configuration so the client could find their way around again, then personal files.

The Results: An immediate, stress-free return to normal
This structured approach led to:

  • No data loss: All memories and documents were recovered in full.
  • Simplified return to work: The client got their familiar desktop, bookmarks and configured software back, avoiding the tedious task of reconfiguring everything.
  • Demystifying the process: A clear, explained method reassured the client and showed that a well-done backup is the best insurance against hardware failure.

Digitising registrations for the pedagogical week

Digitising registrations for the pedagogical week

The Challenge: Eliminating manual data entry and registration errors
The yearly organisation of a school "pedagogical week" was a major logistical challenge. With many different activities offered to pupils of varying ages and grades, the traditional process relied on distributing paper forms. This led to a double loss of time for the organiser: physically collecting forms and then manually re-entering everything into Excel spreadsheets. The process was not only time-consuming but also error-prone (age incompatibilities, overbooked activities, pricing mistakes).

The Solution: An intelligent, autonomous registration platform
We developed a centralised web application, accessible via a simple link, that automates the entire registration process:

Interactive, Filtered Catalogue: Pupils browse the full list of activities. The system natively applies compliance rules: automatic checks on age and grade level for each activity. Incompatible options are hidden or disabled, ensuring valid registrations from the start.

Real-Time Capacity Management: Each activity has its own seat quota. As soon as the limit is reached, registrations are automatically closed for that activity, preventing overbooking.

Automatic Fee Calculation: For paid activities, the system keeps a running total of costs in real time. At the end, each pupil gets a clear summary of the total amount due, eliminating manual calculation errors.

Dual Management Dashboards: The organiser benefits from two automatically generated views:

  • Per Pupil View: Detailed list of activities selected by each student and the corresponding amount to be paid.
  • Per Activity View: List of participants for each workshop, including ages and grades, making it easier to plan logistics (supervisors, materials).

The Results: A pedagogical week fully under control
Digitising the process transformed the experience for all stakeholders:

  • Massive time savings: Complete removal of manual data entry and paper form checking. The organiser can focus on educational content instead of admin work.
  • Data reliability: Business rules (age, grade, capacity) are embedded in the code, eliminating registration errors and schedule conflicts.
  • Financial transparency: Automatic fee calculation ensures clear, accurate billing for parents and administration.
  • Autonomy and smooth experience: Pupils manage their own schedule, while the school instantly gets accurate statistics to organise groups and required materials.

Digitisation and automation of proof validation

Digitisation and automation of proof validation

The Challenge: Stopping the time drain in validation workflows
A printing and communication company was facing a critical bottleneck: the validation of print proofs (BAT). The process relied entirely on manual email exchanges, causing a considerable loss of time for both internal teams and clients. PDF versions multiplied, delays accumulated due to the lack of systematic follow-ups, and tracking approvals became an administrative nightmare.

The Solution: A central platform for validation and file transfer
We designed and deployed a custom web application that radically transformed the workflow:

Unified Client Portal: For each project, the company uploads the PDF proofs to the platform. The system instantly generates a secure link sent to the end client.

Interactive Validation Workflow: Through this unique link, the client views the proofs and has two clear actions:

  • Approval: An immediate notification is sent to the printer so production can start without delay.
  • Rejection with Comments: The client provides reasons for rejection and adds annotations. A "rework" alert is then sent to the production team.

Smart Automatic Reminders: To avoid forgotten approvals, the system automatically sends reminders when no action is recorded within a defined time frame, ensuring proactive follow-up without manual effort.

Integrated File Transfer (WeTransfer-style): Through the same link, the client can also upload source files or missing assets. All exchanges, approvals and files are centralised in a single global view.

The Results: Restored efficiency and operational peace of mind

  • Drastically reduced validation times thanks to instant notifications and automated reminders.
  • Secured process by eliminating versioning errors and centralising all decisions in an auditable history.
  • Improved client experience with a simple, clear and unique interface for all interactions (approval and file transfer).
  • Freed up valuable time for teams who can now focus on production and creativity instead of administrative email chasing.
QR Code pour accéder au site de contact Louis Thissen sur mobile

Open on phone

Scan this QR code with your phone to access this contact page