Luke

- self-taught developer in php/js;
- trying to figure out my own indie-SaaS journey
- inspired me to join twitter; inspiring me to post

[How To Prompt @HowToPrompt__]

The entire RAG industry is about to get cooked.

Researchers have built a new RAG approach that:

- does not need a vector DB.
- does not embed data.
- involves no chunking.
- performs no similarity search.

It's called PageIndex. Instead of chunking your docs and stuffing them into pinecone, it builds a tree index and lets the LLM reason through it like a human reading a book.

hit 98.7% on financebench. beats every vector RAG on the leaderboard.

no embeddings. no chunking. no vector DB.

100% open source.

[Luke @notes_of_lukas]

@ThePrimeagen From now on, I'll start my chats with affirmations and self love. After 10k tokens on that, we can move on to the task!

[Luke @notes_of_lukas]

@De234Genius @TRobinsonNewEra Wow, that's impressive video.. I wonder how many takes and prompting it took

[Luke @notes_of_lukas]

@theo Vibe coding React inside a terminal 😂

[Luke @notes_of_lukas]

@JustinMitchel Algolia was pricey but then Meilisearch came a long almost half a decade ago. I really don't understand why someone would still use Elastic Search. It was the biggest PITA to setup in my career out of all search engines I tried

[Xiaomi MiMo @XiaomiMiMo]

⚡ Faster than Fast. Designed for Agentic AI.
Introducing Xiaomi MiMo-V2-Flash — our new open-source MoE model: 309B total params, 15B active.

Blazing speed meets frontier performance.

🔥 Highlights:
🏗️ Hybrid Attention: 5:1 interleaved 128-window SWA + Global | 256K context
📈 Performance:
⚔️ Matches DeepSeek-V3.2 on general benchmarks — at a fraction of the latency
🏆 SWE-Bench Verified: 73.4% | SWE-Bench Multilingual: 71.7% — new SOTA for open-source models
🚀 Speed: 150 output tokens/s with Day-0 support from @lmsysorg🤝

🤗 Model: https://t.co/4Etm0yZKTL
📝 Blog Post: https://t.co/5zxmcDuB6o
📄 Technical Report: https://t.co/crac1YTLYl
🎨 AI Studio: https://t.co/nSReUs6QgW

[Luke @notes_of_lukas]

@alex_prompter I know too, so it's 2.1% now ahaha

[Luke @notes_of_lukas]

@dhh @NicolasDorier I'm in DK and you got my attention

[Luke @notes_of_lukas]

@tomeromrix @base44 If all those websites are AI generated, I'm sold!!

[Luke @notes_of_lukas]

@Zephyr_hg Hooks!

[Luke @notes_of_lukas]

@karthikponna19 My wise mentor who's perhaps double my age 🥸

[Luke @notes_of_lukas]

@beffjezos I'm sort of embarrassed for being from EU...

[Luke @notes_of_lukas]

Got banned from @claudeai Code on my trip. At first I suspected sharing mobile data that could look like VPNs

I read line by line usage policies and haven't done any of those... but did try @helicone_ai proxy for stats
https://t.co/ynKkEAcpA4

Anyone else?

[Luke @notes_of_lukas]

Two AWS outages a week apart, I might actually believe they start shipping vibe coding to the production!

[ThePrimeagen @ThePrimeagen]

it's dns

[Luke @notes_of_lukas]

@lgrammel @ai Oh that's a good point. Somehow I missed that in migration docs. I will update my article!

[Luke @notes_of_lukas]

Recently I had a smooth journey migrated @vercel AI SDK from v4 to v5

It was quite a list of breaking changes but not as bad after I sat down for a weekend

Biggest tip, prep code in v4 to be as close to v5 as possible!

https://t.co/q0VhjuCLWC

[Luke @notes_of_lukas]

@taylorotwell There are many great options but all the convenience and safety that I get for 36Eur/year is not making me switch away from 1pass any time soon!

[dax @thdxr]

in the next version of bun

you can use `Bun.PHP` to run inline php scripts

[Luke @notes_of_lukas]

Yes, I want "Postgres is in C" as the reason.