# Lambda Nantes Meetup - 21 May

**URL:** <https://discourse.haskell.org/t/lambda-nantes-meetup-21-may/14053>\
**Category:** Events\
**Created:** [May 8, 2026, 8:38am UTC](https://discourse.haskell.org/t/lambda-nantes-meetup-21-may/14053 "2026-05-08T08:38:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![abailly](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.haskell.org/abailly/32/5359_2.png) [@abailly](https://discourse.haskell.org/u/abailly)\
**Post date:** [May 8, 2026, 8:38am UTC](https://discourse.haskell.org/t/lambda-nantes-meetup-21-may/14053/1 "2026-05-08T08:38:45Z")

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Hello,

The Lambda Nantes Meetup is back in May, the 21st, with not one but TWO talks:

- Clément Delafargue (@clementd.wtf) will demonstrate that everything boils down to traverse
- Eric Torreborre (@etorreborre.bloh) will share some new ideas about Compositional Programming

Please note that talks will be in French 🇫🇷 !

Registration and location/time details on Mobilizon: [Programmation compositionnelle et traversabilité - Mobilizon](https://mobilizon.fr/events/804503f4-0552-4f48-9eab-ce060e6df83d)

Lambda Nantes is not a Haskell-only meetup, it’s dedicated to all varieties of functional (or applicative as we like to call it in French) programming languages, tools, and techniques, but not only as we welcome any programming topic that’s fun, intriguing, fascinating, puzzling…