Rajesh Kumar

So Called #softwareengineer 👨‍💻
Travel Addict 🌍
Cinema lover 🎥
Biker 🏍️

[Nithin Kamath @Nithin0dha]

The number of full-fledged Free and open-source software (FOSS) products and initiatives coming out of the 4th Phase, JP Nagar (Zerodha Tech), must be unprecedented for a team of its size globally.

All of these projects started as a way to solve problems we faced internally and were then open sourced. We use them at scale in our stack, and several large organisations and even government departments globally use many of these tools today.

Read more, check the website in the comments.

[Rabi Shanker Guha @rabi_guha]

Today, we're launching C1 by Thesys on Product Hunt and giving away up to 5M free tokens if you retweet this and sign up within 24 hours.

C1 is the world’s first Generative UI API that augments LLMs to respond with interactive UI like charts, forms, cards, and more in real-time, instead of plain text.

Integrates seamlessly with any LLM, framework or MCP in just 2 lines of code
- Fully customisable to match your brand
- Supports custom components
- Renders instantly with no latency

Ship rich, interactive AI apps 10× faster, with 80% less UI overhead.

[javinpaul @javinpaul]

Why gRPC Is Fast: The Real Reason Is HTTP/2, Not Just Protobuf https://t.co/z1FaLbUAMa

[Arpit Bhayani @arpit_bhayani]

Fun Fact - When you commit a transaction in PostgreSQL, the database doesn't immediately write your actual data pages to disk. Instead, it follows this sequence

1. Write to WAL
2. Force WAL to disk using fsync
3. Return a successful commit to your application
4. Write the actual data pages to disk in the background

This is the "fast commit" behaviour of PostgreSQL and the key is that the WAL contains enough information to reconstruct any committed transaction, even if the data pages haven't been written yet.

If the database crashes after step 3 but before step 4, PostgreSQL can replay the WAL during recovery to restore all committed changes. Yes, recovery will take longer in this case, but it's a relatively rare event.

This approach offers several performance advantages:

- multiple txn grouped together in WAL flushes
- during commit only seq WAL writes and not random data page writes
- predictable commit time - now it depends only on WAL write speed, not complex data page operations

btw, this came up in our open discussion on day 1 of my systems design June cohort, by the way. These concepts seem tough, but they're not, especially when you build the right intuition. We will be digging a little deeper on this in subsequent weeks.

super happy that the discussions are getting deeper and better with every cohort :)

[Rajesh Kumar @_rajesh_kumar_7]

Gold jewellers charge 18–22% for making & wastage, plus 3% GST.
That’s ~25% cost upfront. It'll take ~3 years just to break even.

Even digital gold has spread of ~6%

Yet people still call it an "investment."

When enough people lie together, it becomes the truth.

[Rajesh Kumar @_rajesh_kumar_7]

@GRTJewellers why do you need access to a microphone ?
@MIB_India
@DoC_GoI

[Rajesh Kumar @_rajesh_kumar_7]

H,G,F lower and upper, KMK Lower stands and all box front seats of rest stands given to sponsors

[Rajesh Kumar @_rajesh_kumar_7]

@ChennaiIPL
Fans are the backbone of CSK—NOT the sponsors. But clearly, the management is more interested in big-money deals than in giving loyal supporters a fair chance to watch their team play live. Absolutely disappointing. 💛💔
#CSKvsMI

[Dr. A. Velumani.PhD. @velumania]

Who said law in India “treats all equal”

Politicians or movie stars or ultra rich and their children get hearing and bail on same day of taken into custody.

But common man waits for months and even years.

#Pushpa2 #Democracy

[Rajesh Kumar @_rajesh_kumar_7]

🔥

[Shopify Engineering @ShopifyEng]

We averaged 170 million requests per minute at Shopify’s edge over BFCM, with bursts over 280 million requests per minute 🚀

[Rajesh Kumar @_rajesh_kumar_7]

@7465outof100 @SunOfGan BKC - Aarey metro

[Rajesh Kumar @_rajesh_kumar_7]

@narenvj21 @SunOfGan yes

[Rajesh Kumar @_rajesh_kumar_7]

@arpit_bhayani Postgres 🤔

[Rajesh Kumar @_rajesh_kumar_7]

@vishnukumar2017 People suffer a lot while coming out

[Rajesh Kumar @_rajesh_kumar_7]

@cmrlofficial Every alternate week you guys breaking things

[Sundar Ganesan @SunOfGan]

Genuinely ROFL ed

[Rajesh Kumar @_rajesh_kumar_7]

@aaichnairport @theairhelper solluuuu

[Rajesh Kumar @_rajesh_kumar_7]

@airtelindia I am getting a lot of spam calls now, i guess data is compromised

[Rajesh Kumar @_rajesh_kumar_7]

@harshleenchawl2 hi

[Rajesh Kumar @_rajesh_kumar_7]

@IAmPascio ig