Yasser

Building @envfyjs

[Nick Oates @nickoates_]

You can just email people.

[Yasser @yasserfds]

@vivekxgupta0 https://t.co/hDbKNxFe0B

[Yasser @yasserfds]

@connoratlunon https://t.co/hDbKNxFe0B

[Yasser @yasserfds]

🚀 Day 4 of building @envfyjs !

📚 Documentation is now live:
https://t.co/oYpNgzts5Q

✅ v0.3.0 released
⚡ v0.4.0 is already in progress

🗺️ Roadmap:
https://t.co/8OH4k6pSXU

#NodeJS #TypeScript #OpenSource #BuildInPublic

[Tanuj @tanujDE3180]

Senior Backend Interview in 2026.

How many of these can you explain without Googling?

- Event Sourcing
- CQRS
- Saga Pattern
- Outbox Pattern
- Idempotency Keys
- Consistent Hashing
- Distributed Locks
- Backpressure
- Write-Ahead Logging (WAL)
- Read-Your-Writes Consistency
- Quorum Reads & Writes
- Vector Clocks
- Gossip Protocol
- Bloom Filters
- Tombstone Records
- Token Bucket vs Leaky Bucket
- Circuit Breakers
- Bulkhead Isolation
- Cache Invalidation
- Leader Election
- Split Brain Problem
- Exactly-Once vs At-Least-Once Delivery
- Change Data Capture (CDC)
- Two-Phase Commit (2PC)
- Raft vs Paxos

If you know more than 10, you are ready for system design interview.

[Yasser @yasserfds]

@p32929 I would apperciate it

[Yasser @yasserfds]

Envfy v0.2.0 is out!

What's new?
✅ Enum validation support (readonly string[])
✅ New parseEnum validator
✅ Better test coverage with Vitest
✅ Exported EnumType

#NodeJS #TypeScript #JavaScript #OpenSource #BuildInPublic #WebDev #DevTools

[Yasser @yasserfds]

envfy v0.3.0 is now out!

Make sure to update the library right now.

#NodeJS #TypeScript #JavaScript #OpenSource #BackendDevelopment #WebDevelopment #DeveloperTools #BuildInPublic #Programming #npm

[Madni Aghadi @hey_madni]

Cursor just held their first ever conference.

And they dropped:

- 1.5T model trained from scratch
- Github direct replacement Origin
- iOS app

nobody saw this coming...

full breakdown (thread):

[CG @cgtwts]

SpaceX just acquired Cursor for $60B

> be Cursor
> 4 MIT students start a side project in 2022
> build the AI coding tool developers love
> hit a $10B valuation
> decide copilots aren’t enough
> move into models
> need massive compute to compete with OpenAI, Anthropic & Google
> meanwhile xAI is losing the coding race
> realizes catching up could take years
> skips the line
> buys Cursor for $60B
> Cursor gets compute
> xAI gets the coding leader
> founders become multi-billionaires

[Yasser @yasserfds]

Just bumped Envfy to v0.2.1 a hotfix release. You can now use the library safely again.

#NodeJS #TypeScript #JavaScript #OpenSource #BackendDevelopment #WebDevelopment #DeveloperTools #BuildInPublic #Programming

[Yasser @yasserfds]

Env files break Node.js apps more than you think 😬

I built Envfy - a simple, type-safe env validator for Node.js

Check the full blog on medium:
https://t.co/CEtkJr6adh

#NodeJS #TypeScript #OpenSource #BuildInPublic

[Shubh @TheSuperEng]

Want to get into backend development?

- Build your own DNS
- Build your own BitTorrent
- Build your own Decentralized file system
- Build your own Interpreter
- Build your own kafka
- Build your won web scraper
- Build your own Redis
- Build your own Database Engine
- Build your own Distributed Job Queue
- Build your own Search Engine
- Build your own web server
- Build your own Reverse Proxy
- Build your own API gateway
- Build your own Load Balancer
- Build your own URL Shortener
- Build your own CDN
- Build your own Pub/Sub System
- Build your own Task Scheduler
- Build your own Email Service
- Build your own File Storage Service
- Build your own Logging System
- Build your own Metrics/Monitoring System
- Build your own Feature Flag System
- Build your own Payment Gateway Mock
- Build your own Rate Limiter
- Build your own Notification System
- Build your own WebSocket Server
- Build your own OAuth Server
- Build your own CI/CD Pipeline System

[spidey @lochan_twt]

top 10 research papers you should try reading in ai engineering :
(in order)

1) Attention Is All You Need — Transformer architecture
2) BERT — Bidirectional language understanding
3) GPT — Autoregressive transformers
4) LoRA — Low-rank fine-tuning
5) PEFT — Efficient model tuning
6) RAG — Retrieval + generation
7) Diffusion Models — Image generation
8) ViT — Vision transformers
9) GANs — Adversarial generation
10) VAE — Latent representation learning

(paper's in replies)

[AI_Explorer @ai_explorer25]

Learn AI for free directly from top companies.

1 - Anthropic:
https://t.co/cc4SxBn4S7

2 - Google:
https://t.co/r1bv5XfHsN

3 - Meta:
https://t.co/UALdoellxL

4 - NVIDIA:
https://t.co/JKTgY3mtf0

5 - Microsoft:
https://t.co/izcZcNQ9NN

6 - OpenAI:
https://t.co/nY93DIwg3G

7 - IBM:
https://t.co/lIYoazapqo

8 - AWS:
https://t.co/770qBjw9po

9 - https://t.co/4UrenSfxVZ:
https://t.co/SnPZ287LiW

10 - Hugging Face:
https://t.co/AAym51yGo9

Comment "Learning" if you find this helpful.

Repost so others can take help.

Must bookmark for future reference.

[Vivo @vivoplt]

15 AI related accounts you should follow on Twitter:

1. @karpathy
2. @fchollet
3. @ylecun
4. @AndrewYNg
5 @rasbt
6. @dair_ai
7. @lilianweng
8. @jeremyphoward
9. @simonw
10. @_akhaliq
11. @ID_AA_Carmack
12. @gwern
13. @goodside
14 @drfeifei
15 @demishassabis

Let me know who I missed guys

[Captain Insight @CaptainInsightX]

Netflix, Wikipedia, Airbnb, Dropbox ~ all run on the same web server.
One quiet Russian engineer wrote it alone. For free. 🤯

Meet Igor Sysoev 🇷🇺

> Russian software engineer. Born 1970 in Soviet Kazakhstan.
> Failed his first university entrance exam.
> Joined Rambler in 2000 as a system administrator.
> 2002 ~ started writing a new web server in his free time. Alone.
> Goal: handle 10,000 simultaneous users on one machine ~ a problem Apache (the dominant web server at the time) couldn't solve.
> 2004 ~ released nginx publicly. Free. Open source.
> Zero marketing. Zero PR. Just the code.
> 2008 ~ nginx was serving 500 million requests per day at Rambler.
> 2011 ~ founded Nginx Inc. with co-founder Maxim Konovalov.
> 2013 ~ Netflix scaled its streaming CDN to 40 Gbps per server using nginx.
> 2019 ~ F5 acquired the company for $670 million.
> December 2019 ~ Russian police raided his Moscow office over a fake copyright claim.
> The Russian tech community publicly defended him. Charges were dropped.🚀
> 2021 ~ nginx overtook Apache as the #1 web server on Earth.
> 2022 ~ left F5 quietly. No farewell tour. No book deal.
> Today nginx powers Netflix, Wikipedia, Airbnb, Dropbox, Cloudflare, WordPress.
> 33% of every website on Earth runs on his code. Apache trails at 26%. Microsoft's IIS isn't even close.
> Still 100% open-source. Still free.

One man wrote it alone, in his free time, for free.
He never sought publicity. He never asked for credit.
A third of every website on Earth still runs on his work.

Webserver GOAT. 🐐

[Yasser @yasserfds]

I just got into Rust School 📷 Cohort 01! Thanks to @_HerDAO, @Onallee and @Hari_priyoo for making this possible. Let’s build!

[Programmer Humor @PR0GRAMMERHUM0R]

thatsMinimumRequirement https://t.co/2iozyPyAgO

[Bharat Kara @KaraBharat]

⚡ TypeScript utility types cheatsheet for cleaner and safer code

#typescript