Gaëtan Wittebolle.
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Gaëtan Wittebolle

GaëtanWittebolle_

I ship service as a software that a team of 10 would spend months to build.

6 products500+ freelancersBordeaux
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Trusted by
Bpifrance
Equans
Novaxia
Apiday
SNCF
AXA Climate
Decathlon
EY
Vinci
04

What I
build.

My tools run in production and bring together 500 freelancers. The first one was born from a problem I lived every day: the isolation of freelancing. The model works because the problems I solve are the ones I lived first.

Climate × AI
01CarbonaraGreen IT↗02claude-carbonOpen source↗03TokenClimateTeam SaaS · pilot↗
Other products
04BuddyWorkersFreelancer community↗05PanettonePersonal Branding↗06PestoooSustainable hospitality↗
Climate × AI

Make the footprint of software visible

Ten years measuring carbon, first at EY then independently. Three tools, one obsession: from the whole IT estate down to generative AI, from the solo dev to the team.

01
Bilan Carbone ITCarbonara
GHG Protocol
248tCO₂e
↓ 12% vs 2023
Scope breakdowntCO₂e
Scope 12%
Scope 218%
Scope 380%
2024Publié248 tCO₂e
2023Publié282 tCO₂e
2025Brouillon—
BridgesPlan d'actionsTrajectoireSimulateur
✦AI Dente · renouveler 40 postes vieillissants ≈ −14% sur le Scope 3
01Green IT

Carbonara

Carbon footprint of your IT estate. Precise emissions, phase by phase, with a granularity you won't find elsewhere.

4
Phases
80%
IT Scope 3
Visit site →
02
02Open source

claude-carbon

The CO₂ of your Claude Code sessions, right in your status line. Open-source plugin, Jegham 2025 methodology.

MIT
License
1 line
Install
View on GitHub →
claude-carbon ⌥ main | ● Opus 4.7 ▓▓▓░░░ 35% | $0.50 · 65g CO₂ | ↻13:00
$ /carbon-report
Today312 g CO₂e≈ 2.6 km by car
This year4,1 kgtop project: tokenclimate
7 jours▁▃▂▅▇▃▄g CO₂ / jour
ModèlesOpusSonnetHaiku
MITopen source★ GitHub
03
TokenClimateMay 2026 · team
4 820 €
Cost
38 kg
CO₂e
12
Devs
Répartition par modèle
Opus 58%Sonnet 30%Haiku 12%
Platform2 140 €
Data1 460 €
Frontend1 220 €
03Team SaaS · pilot

TokenClimate

The cost and CO₂ of Claude Code by team, project and developer. The team version of claude-carbon. Pilot program open.

FinOps
the real cost
Tech lead
usage per project
Sustainability
the CO₂ of AI
Join the pilot →
Other products
04
04Community

BuddyWorkers

500 French freelancers in one space. The thing I was looking for when I was alone behind my screen.

500+
Members
10+
Cities
1000+
Meetups
Visit site →
BuddyWorkers
05
05Personal Branding

Panettone

AI personal branding for leaders, consultants and independents. Ready-to-post capsules, AI thumbnails, writing workshop, editorial calendar and Vaniglia AI, all in one tool.

72/100
Diagnostic score
5
AI modules
Visit site →
PanettoneBrand studio

Stop posting into the void. Build a brand that pulls people in.

Diagnostic72/100
Capital média
Double niche
Client idéal
Plan 90 jours
V
Vaniglia · Mode rédaction

"I help leaders grow their influence."

06
Pestooo
Clef Verte 2026
72%Conformité
Basile

Commencez par les 12 critères impératifs. Score estimé : 45% → 62%.

Basile · AI Coach
Énergie
Eau
Déchets
06Sustainable hospitality

Pestooo

Simplified Green Key certification for sustainable hospitality. Interactive diagnostic, action plan and consumption tracking, built with hoteliers tired of Excel audits.

78%
Audits automated
200+
Properties
Visit site →

From consultant
to solobuilder_

ACT I
2021 · The spark
Leaving my corporate job

After a few years in consulting, I went freelance. Not a grand plan - more of a desire to pick my own topics and pace.

ACT II
2022 · Colombia
Freelancing from Medellín

I went to work a few months from Colombia. The remote life works great; alone in front of a screen, much less. I came back with an idea.

ACT III
2024 · The community
Launching BuddyWorkers

It started as a few coffees with local freelancers. Three years later, 500+ members, ten cities, and a mission-driven company. The first product that stuck.

ACT IV
2026 · Solobuilder
AI changes the game

With Claude and the right tools, I ship six products in parallel. A few large companies trust me, the newsletter grows, and I keep learning as I go.

Umami

The real
behind-the-scenes_

Once a month, I write what I learn building these products: the numbers, the tools, what doesn't work, what I'd change. Raw, hopefully useful.

✓ Monthly
✓ 1-click unsubscribe
✓ Free

A problem
to solve ?

I build custom tools for companies with a real operational problem. Let's talk.

@
Email
gaetan.wittebolle@gmail.com
→
in
LinkedIn
@gwittebolle
→
★
Lemcal
Book a slot
→
Gaëtan
Wittebolle_
About

Based in Bordeaux. Six products in parallel, one of them open source, a freelancer community, a monthly newsletter. I build with AI as leverage, no team, no funding.

Products
Carbonaraclaude-carbonTokenClimateBuddyWorkersPanettonePestooo
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© 2026 · Written in Bordeaux
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