Posts
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A Cheaper, Better refill for the Waterman - the Signo
In my quest for a better pen, one of the better looking and incredibly balanced pen is the Waterman. However, my desire to hack the Waterman to greater heights cannot be restricted to mundane things like “oh - you cannot do stuff with a rollerball”.
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UPI Zero - Digital Payments without Phone
What is UPI-card ?
UPI-card is a plain plastic card with a grid of numbers printed on it. UPI-card can be enhanced with a magnetic stripe or a smart chip inside. The grid of numbers is random and unique to every single card. This is not a new invention. ICICI Bank already uses it today and is compliant with RBI mandates on 2-factor authentication.
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Thorium is the future of energy in India
Molten Salt Reactors (MSR) or Liquid Fluoride Thorium Reactors (LFTR) are a very old technology that was never built to its potential in the United States for a single reason - the US does not have the reserves of thorium needed to make this technology productive.
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RBI is correctly taking baby steps around fintech regulation
This post is a response to the YourStory article - Is RBI over-regulating by allotting online platforms additional responsibilities?
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Suspending systemd/upowerd/logind on low battery (Fedora or Ubuntu)
On older Linux OS versions, the system used to automatically suspend on low battery. Then this was managed by gsettings using
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The power of Digital India and the futility of our government
There’s been a few reddit threads started about how the #DigitalIndia campaign is a stupid exercise and our funds and efforts should be better utilized on building basic infrastructure for farmers. It is a classic comment that gets repeated again and again. It is fairly similar to an argument in a hospital - should you do the surgery yourself or spend a lot of extra time+effort+money training a new intern on how to perform surgery. Do note that it will take many years for the intern to qualify to do a surgery.
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Dr APJ Abdul Kalam - RIP
Dr Kalam used to live in the house behind mine before he came President. The day he became President, the only person allowed in his house was the dhobi! He still has the photo hanging under his tree. I still remember when APJ Abdul Kalam spoke at IIT Bombay. He was one of my inspirations. RIP
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Creating a Fedora 21 LiveUSB in Ubuntu 14.04
Sadly, Ubuntu’s startup disk creator does not allow you to create fedora images.
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The correct way to update/change git submodules
- rm -rf .git/modules/interesting_modules
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The Android ART runtime is a Golang tunnel
I’m willing to bet that the first reason that Android switched to ART from Dalvik is the possibility of linking directly to object code from Golang.
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Setting up btcd + Go build for bitcoin
My last post was about setting up the build system for Bitcoin reference system 0.9.0.
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Compiling bitcoin 0.9.0 - the transaction malleability fix
I had a bit of trouble compiling Bitcoin 0.9.0 (which contains the all important “transaction malleability” fix). So I’m posting here for the benefit of everyone. This is done on an Ubuntu 12.04 machine - which is relevant only for the system packages (if you’re on any other machine just ask around for what are the equivalent packages)
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The intricacies of Bitcoin
What are some of the under-the-surface aspects of Bitcoin that safeguard its larger application as a viable digital currency
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Aptitude equivalent of "apt-get autoremove"
As I am moving away from Ubuntu towards base debian, I am realigning my workflow to work better in the latter. The biggest being, unsuprisingly, package management.
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Getting a fully activated Windows 8.1 installed on VirtualBox - and the crap that Microsoft puts you through
- Create a new VM on VirtualBox. Make sure you are running atleast VirtualBox 4.2.16
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