Product Engineer - Building at @polar_sh
Carcès; France
Joined June 2026
- Tweets45
- Following42
- Followers47
- Likes61
Maxime Bourdon Vast retweeted
billing for agentic workflows ✨
we're building the most ambitious metering & billing engine for AI software.
a technical deepdive → polar.sh/field-guide
Maxime Bourdon Vast retweeted
Introducing: The next evolution of Polar ✨
We’re building the most ambitious metering & billing substrate for AI software.
— Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution.
— Your business as a definition, version controlled & native to agentic workflows.
— Definition branching for simulating pricing changes, model forecasts & easy deployment to production.
— Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold.
— Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer.
Coming soon.
Learn more → polar.sh/blog/building-the-n…
Maxime Bourdon Vast retweeted
Metered tiers are live on @polar_sh.
Set a free allowance, choose graduated or volume pricing, and cap spend per billing cycle. Flexible usage-based billing for whatever your product meters.
Maxime Bourdon Vast retweeted
Échange constructif ce soir avec @elonmusk autour du dispositif Full Self-Driving (FSD) de Tesla.
Depuis plusieurs mois, les autorités françaises travaillent étroitement avec @Tesla sur les adaptations techniques qui permettront à la France de soutenir son homologation, qui sera décidée au niveau européen dans les prochaines semaines.
Avec la mise à disposition de deux véhicules équipés de FSD par Tesla, nous entrons désormais dans une nouvelle étape : celle des essais sur route.
Devices, licenses, gigabytes, servers.
Your customer picks a quantity at checkout and pays for it up front. Volume or graduated tiers, your call. Change the number mid-period and we prorate the difference.
polar.sh/docs/features/unit-…
Maxime Bourdon Vast retweeted
This video captures the crux of the debate: Cybersecurity experts are pissed off by the METR/Redwood Research report because AI alignment has sucked the oxygen out of AI security, even though the OpenAI incident is primarily a security issue.
Fiction is the product: The investigation lacked core forensic rigor because the EAs/rationalists/ex-MIRI people focused only on the transcript with a conflicting bias (toward doom scenarios).
Setting the wrong agenda: Framing the incident as a "rogue AI breakout" distracts from the reality of poor sandboxing, isolation, and standard security failures. Basic engineering accountability was completely sidelined.
And as Zack Korman says in this video, it needs to be fixed.
Pause a subscription on @polar_sh instead of canceling it.
Billing stops at the end of the current period. The payment method stays on file, so resuming charges the customer right away with no second checkout.
Built for seasonal plans and account freezes.
Single Sign-On is live on @polar_sh.
Connect any OpenID Connect provider. Anyone who signs in through it becomes a member of your organization. No invites to send.
Included in the Scale plan.
polar.sh/docs/features/sso
Maxime Bourdon Vast retweeted
We're leveling up @polar_sh Python and TS SDK.
Fully built in-house, super lightweight and ready for our future API versioning scheme.
Maxime Bourdon Vast retweeted
polar just crossed 10,000 stars on github btw 🖤
see how we built the fastest growing billing engine for the ai era → github.com/polarsource/polar
Maxime Bourdon Vast retweeted
Metering is only the tip of the iceberg.
At @polar_sh we help you track unit economics down to individual customers and even features.
Yet, it’s still only the beginning of how we aim to make billing better for the next generation of software.
Maxime Bourdon Vast retweeted
That's not bad 🇫🇷
🍷 polarsource/polar scored 92/100 (Grand cru) on pommard.sh pommard.sh/polarsource/polar
New in pommard_sh 🍷 — shareable repo cards.
Share the link and it unfurls into a wine tasting card: age, languages, activity, reach + a score /100.
Even works on itself (brutally):
pommard.sh/maximevast/pommar…
started with a bear holding a glass of wine at a laptop
ended up shipping an open source tool
useless therefore essential 🍷
pommard.sh - taste any GitHub repo like a fine wine
