# blef.fr

> Data, AI and tech stuff, mostly written by a human.
> Author: Christophe Blefari (@_Blef)

## About

Geek fixing printers. Currently co-founder of [nao Labs](https://getnao.io).
Before that I moved data from sources to destinations as a data engineer for 10 years.

You can find me in Paris, France or in the South East of France. I also appear on YouTube and LinkedIn.

When I say the blog is mostly written by a human, it's because I'm a human. Blogging is the most human thing I can do.

## Reading posts

Each post is available as a rendered HTML page at `/{slug}`.

Append `.md` to any slug (e.g. `/{slug}.md`) to fetch the raw Markdown
source — useful for LLM ingestion or programmatic processing. Ghost posts are
converted from HTML to Markdown on the fly; local posts return the original
`.md` file verbatim, including YAML frontmatter.

## Post list

- [We got attacked via GitHub PRs](undefined/someone-tried-to-hack-us/): Wed May 27 — A throwaway GitHub account opened 7 PRs on nao, and walked away with our OpenAI API key. (security, open source, nao)
- [Re.](undefined/re/): Wed Mar 18 — A fresh new start. (personal)
- [Data News — Week 25.43](undefined/data-news-week-25-43/): 2025-10-26 — Data News #25.43 — Best-of the last 6-months articles: AI and data eng stuff that happened. (Data News)
- [Data News — dbt Coalesce 2025](undefined/data-news-dbt-coalesce-2025/): 2025-10-20 — Data News — dbt Coalesce 2025. What about the Fivetran + dbt Labs. What it means for data ecosystem and more. (Data News)
- [Forward Data Conference + some news](undefined/forward-data-conference-some-news/): 2025-06-30 — Data News are coming back and Forward Data Conference CfP still open until next Sunday! (Data News)
- [Data News — Week 25.15](undefined/data-news-week-25-15/): 2025-04-14 — Data News #25.15 — Arrived in San Francisco, Llama 4 is out, reasoning hacks, MCP hype, Iceberg stuff. (Data News)
- [Data News — Week 25.10](undefined/data-news-week-25-10/): 2025-03-08 — Data News 25.10 — Super large edition, all new models releases, events, dbt Core vs. SQLMesh, benchmark your data team, and more. (Data News)
- [Data News — Week 25.02](undefined/data-news-week-25-02/): 2025-01-11 — Data News #25.02 — New conference AI Product Day, what are AI agents, does size matter, and awesome analytics engineering content. (Data News)
- [Data News — Small break until January](undefined/data-news-week-50-2/): 2024-12-13 — Data News #50 — Small break until January next year. (Data News)
- [Data News — Week 24.45](undefined/data-news-week-24-45/): 2024-11-08 — Data News #24.45 — dlt Paris meetup and Forward Data Conference approaching soon, SearchGPT, new Mistral API, dbt Coalesce and announcements and more. (Data News)

All posts list is available at undefined/posts.md.