en · fr

Portrait of Valentin Lachaise

Valentin Lachaise

engineering student · nantes, france · IMT Atlantique · founder of TrustPlug

01cv

One page. Click it to read it full screen.

pdf download version française (pdf)

CV of Valentin Lachaise, one page

02about

Who I am and what I'm on right now.

Engineering student at IMT Atlantique (Nantes), after two years of preparatory classes (CPGE PCSI/PC*) at Lycée Montaigne in Bordeaux. I like building things that work end to end: a line-following robot I designed, 3D-printed and programmed, a microwave physics experiment taken all the way to a chemistry application, and a one-person company of plugins, TrustPlug, where I do everything myself: front-end and back-end development, sales, SEO.

In my second year I specialise in development and management of nuclear installations.

Right now: preparing the launch of TrustPlug, and running partnerships and sponsors for the TEDx EULiST x IMT in Paris. I am also an IMT Group ambassador (Student Union, EULiST).

03trustplug

My micro-business: Framer plugins that I design, build and sell on my own.

TrustPlug makes no-code plugins for Framer. Each one does a single job, goes in with one click, and needs no API key. I handle all of it: the plugin code, the trustplug.net site, the back end, the commercial positioning, SEO and social media (Instagram and X).

The 10 plugins

[in development]

Framer · trustplug.net · permanent free plan + paid plans

  • Testimonials: Google reviews as widgets (23 layouts), from a Place ID.
  • Gallery for Instagram: the posts of a public account as a grid, no Instagram login.
  • Gatekeeper: allows or blocks visitors by country, flags VPN and proxy traffic.
  • Pathfinder: redirects by country, language or device, or suggests a page with a banner.
  • Landmark: a navigable Google Map of your address, with directions.
  • Open Hours: open, closed or closing soon, from typed hours or a calendar.
  • Feedback: popup, button or drawer that sends visitor feedback to Slack, Discord, Teams or a spreadsheet.
  • FAQ: searchable questions and answers in eight layouts.
  • Standby Mode: a maintenance page with a countdown, while you still see the live site from your own IP.
  • Cookie Consent: holds back trackers until visitors accept, deletes refused cookies, Google Consent Mode v2.
Home page of trustplug.net: Tiny plugins. Serious impact.
fig. 1: the trustplug.net home page

how it is put together

The site is a static Next.js export hosted on Cloudflare Pages. The plugins are Framer code components that call a small service on Cloudflare Workers (waitlist, messages, licences, feedback dashboard).

framer editor ──► plugin ──┐
published sites ──► component ┼──► cloudflare worker (API)
trustplug.net (static) ────┘          │
                                      └─► D1 database · licences

04projects

School and personal projects, newest first.

LethalBot

[February–May 2026]

PRONTO project, IMT Atlantique · project site

An autonomous rolling base that follows a black line and carries up to 20 kg while weighing under 2 kg empty, ten times its own mass. An OV7670 camera tilted at 45° reads the floor at 40 × 30 pixels; each row of the image gets its own black/white threshold, then a linear regression through the black pixels gives the line's offset and angle, which steer the two drive wheels.

Chassis in four PLA-printed modules and laser-cut plywood panels, modelled in SolidWorks and rendered in Blender. Programmed in CircuitPython on a Raspberry Pi Pico W. I also built the project's website: a 3D exploded view that follows the scroll, a line-following simulation, downloadable parts.

The finished LethalBot on a scale reading 1.778 kg
fig. 2: the finished robot on the scale, 1.78 kg
Raspberry Pi Pico W wired on a breadboard
fig. 3: the Pico W wired on the breadboard
Home page of the LethalBot website with the 3D model of the robot
fig. 4: the project website, with the 3D robot you can turn with the mouse

TIPE: Characterisation and optimisation of a microwave heating process

[2024–2025]

CPGE PC*, Lycée Montaigne · slides (in French) · MCOT (in French)

Starting point: a talk by Jean-Michel Courty in which potatoes heated in a microwave oven show two hot spots under a thermal camera. I wanted to understand where these inhomogeneities come from (Mie resonances) and to use them.

I modelled spherical and ellipsoidal shells in SolidWorks and 3D-printed them as moulds, filled with agar-agar (20 g/L) to mimic water. I solved Maxwell's equations in these geometries in Python (power-series expansion truncated at order 10, Bessel functions for the sphere and the cylinder), then compared with temperature profiles measured by thermal camera. I also disproved the naive "foci" hypothesis for the ellipsoid, studied the evanescent wave between two nearby objects and computed the energy balance for several shapes.

Application: a Fischer esterification (ethanoic acid + 3-methylbutan-1-ol) heated for 1 minute at 570 W, with the reactants in a glass bauble. Yield measured by titration: 75% at the centre of the waveguide, against 60% without a waveguide and 49% at its edge.

3D printing of the shells, shells of different shapes and a stabilising foot
fig. 5: the 3D-printed shells used as moulds for the waveguide
Thermogram, reactants at the centre of the waveguide
fig. 6: at the centre, 75%
Thermogram, reactants without a waveguide
fig. 7: no waveguide, 60%
Thermogram, reactants at the edge of the waveguide
fig. 8: at the edge, 49%

05in progress

What is being prepared.

TEDx EULiST x IMT

[February 2027]

Paris · partnerships and sponsors manager

A European event with about 1,100 attendees expected. I run the sponsorship strategy, a budget of about €50k, logistics and team coordination.

TrustPlug launch

[coming soon]

micro-business · trustplug.net

Putting the first plugins online, with a permanent free plan and paid plans.

06documents

The important papers, as PDFs.