HNHacker News
TopNewBestAskShowJobs

tflinton

253 karma · joined January 17, 2014

submissionscomments
tflinton··on What do Visa and Mastercard do? An intro to card networks
Networks like visa and Mastercard don’t seem evil. If you’ve ever had to dispute a charge and got your money back easily or relied on the fact that even if their computers are down they’ll still take the risk and allow you to take money out of your account you’d find the fees they charge pretty minimal. Now the issuer bank… that’s where most of the fee and why most banks now have reward cards because the issuing bank can ask for whatever additional fees on top of what visa/mastercard does.
tflinton··on The Twelve-Factor App (2025)
Well you’ll need to know the path in the secret store, so store the path in the environment.
tflinton··on The Twelve-Factor App (2025)
Heroku made some updates in 2025
tflinton··on The Twelve-Factor App (2025)
In older architectures you would expose services as libraries and everything ran in one UBER process… eg JBoss and ASP.. it also covered off on web server processing like cold fusion and php.
tflinton··on The Twelve-Factor App (2025)
I know large Fortune 500 companies with 10,000 apps that follow it pretty religiously.
tflinton··on The Twelve-Factor App (2025)
Yeah, secrets should be fetched by application code from a secret store (aws secrets manager, vault, etc) using an identity. Put in a pull request.
tflinton··on The Twelve-Factor App (2025)
Heroku updated it in 2025.
tflinton··on Htmx 4.0
I just discovered this and it’s exactly what I’ve been hoping for since 2016. I’m just sorry I’m JUST finding out about it.
tflinton··on Why is everyone trying to build a solid-state battery?
High density batteries allows us to have dramatically cheaper electricity. Think of it like this, what happens when electricity is 1/10th the cost? Beyond what others have pointed out (electric airplanes, cars that drive thousands of miles), costs for everything would drop as energy is a core driver of it in every good you consume. If you can pull energy where it's very cheaply available and store/transport it anywhere the world millions of lives would be saved. For example;

If energy is cheaper than the price of water you can pull water out of thin air (dehumidifiers).

If energy is cheaper you can grow food in areas you normally couldn't.

When you can transport anything for cheap you can move food to areas that are vulnerable to food insecurity.

If you can store energy at large scale you can nearly eliminate grid failures, savings lives in the summer and winter.

Costs for transporting food would go down significantly, imagine groceries being 10-15% cheaper.

Assuming airlines have competitive pressure you could expect plane flight costs to drop 20-30% improving everyone's mobility.

tflinton··on S&P Global has lowered Oracle’s creditworthiness from BBB to BBB-
[flagged]
tflinton··on Green card seekers must leave U.S. to apply, Trump administration says
If it makes you feel any better, and I’m sure it won’t. There are US citizens outraged by this as well. And I’m one of them.
tflinton··on It's all a blur
I did my thesis on using medioni's tensor voting framework to reconstruct noisy, blurry, low-res and the like images. It was sponsored by USGS on a data set that I thought was a bit of a bizarre use case. The approach worked pretty well, with some reasonable success at doing "COMPUTER ENHANCE" type computer vision magic. Later on talking with my advisor about the bizarrely mundane and uninteresting data sets we were working on from the grant he quipped that "You built a reasonable way of unblurring and enhancing unreadable images, the military doesn't care about this mundane use case." It then occurred that i'd been wildly ignorant to what I just spent 2 years of my life on.
tflinton··on Ex-GitHub CEO launches a new developer platform for AI agents
How does this differ from what Github Copilot does when writing its .github/copilot-instructions.md? That doesn't keep the transcript or prompts, but it does keep quite a bit of the context and a declarative state of the decisions/design considerations made so another AI bot can pickup and have enough context to understand the rationale. I'm also not really convinced that any AI agent wouldn't still parse the code to understand more about the context vs. just using the checkpoint.
tflinton··on Europe's $24T Breakup with Visa and Mastercard Has Begun
Don't forget stand-ins, much of this hasn't discussed that credit card networks do a lot of "stand-ins" when the issuer is unreachable (bank goes down, latency too high, etc). It's a bit unclear how things like Wero would operate when a network issue hits as Wero and EU rails won't just assume the liability for the transaction and hope it clears later as it does on Visa/Mastercard.
tflinton··on Clawdbot - open source personal AI assistant
F** oracle.
tflinton··on Clawdbot - open source personal AI assistant
Believe it or not clippy the Microsoft helper for word was a huge interest and feature for all of about 2-3 weeks before everyone realized its interactions were just “on top” of actually doing something. Once the cost of clippy, and its failure to actually be helpful sunk in it was relegated to jokes and eventually down the line memes.

It’s hard to actually create something that is a personal assistant. If I want it to keep and eye out for reservations I guarantee it would take a few hours for me to get that setup, more time that it would take to just watch for reservations.

If I wanted it to find out when I needed to register my child for school then do it, I’m 100% sure it would fail and probably in some range from comical to annoying.

This seems less like a personal assistant and more like a “hey bro how ya doing?”. It lacks the ability to inquire and ask questions and deduce.

If I have to prop it up to complete any random task I have, I’ve just got another version of clippy with a lot more computing power.

tflinton··on Offline card payments should be possible no later than 1 July 2026
Credit card companies have been doing stand-ins to support offline transactions for ages. Mainly the reason why you pay a high interest rate on your credit card.
tflinton··on Visa and Mastercard are getting overwhelmed by gamer fury over censorship
Websites aren't accountable for user content because of the DCMA and Safe harbor laws protecting them from the risk of what users post [1]. Gun manufacturers are protected from liability by the PLCAA [2]. Police aren't held accountable because of qualified immunity [3].

What i'm saying is no such protections exist for financial transaction that occur on a network. Infact, the opposite exists, laws exist (called Know Your Customer [4]) that specifically hold financial networks (like Visa and Mastercard) liable for allowing transactions related to fraud, money laundering or other high risk transactions like gambling and adult entertainment.

[1] https://en.wikipedia.org/wiki/Safe_harbor_(law) [2] https://www.congress.gov/bill/109th-congress/senate-bill/397... [3] https://en.wikipedia.org/wiki/Qualified_immunity [4] https://en.wikipedia.org/wiki/Know_your_customer

tflinton··on Visa and Mastercard are getting overwhelmed by gamer fury over censorship
It’s still a very large considerably risk. They don’t have the equivalent of a net neutrality law to shield them. Money transferred on their network is their liability.
tflinton··on Visa and Mastercard are getting overwhelmed by gamer fury over censorship
Before anyone goes with pitchforks at Mastercard or Visa it's worth remembering that just because something isn't criminal it can still be quite a civil issue.

Visa and Mastercard take on quite a bit of risk by allowing payment transactions to companies who wade into murky businesses that while not illegal may have a lot of risk.

The amount of lawsuits that these processors get co-named in for providing payment rails is probably enormous and without laws protecting them I don't see how they don't have a choice in actively censoring.

tflinton··on Career Development: What It Means to Be a Manager, Director, or VP (2015)
I might disagree a bit with this, I've had all three titles and from my experience:

A manager is executing on plans, managing the work, aligning people on teams and enforcing policy & process.

A director is creating the plans to solve problems, intaking work, aligning teams and creating good processes from policy.

A VP is about defining the problem teams need to solve, managing capacity/budget for work, aligning on a strategy across a company and creating good policy.

tflinton··on DOGE Has Started Gutting a Key US Technology Agency
I'd go as far as say 4-chan rather than reddit, but yeah, pretty much.
tflinton··on The Origins of Wokeness
I think the basis of his arguement is a prig is incentivized by calling out the moral failures of others to make themselves feel more virtuous.

Where perhaps the quakers or MLK were doing it out of moral outrage.

tflinton··on CrowdStrike Update: Windows Bluescreen and Boot Loops
For some areas of our critical systems we have three independent software groups program the same exact system on different infrastructure. Just for moments like these...
tflinton··on Show HN: Glasskube – Open Source Kubernetes Package Manager, alternative to Helm
The selling point of being faster than helm isn’t a very big draw to me.. I never felt the problem with helm was its speed.
tflinton··on A Rant about Front-end Development
I literally left front end development because of stuff like this. It felt like insanity. Throwing out the door debuggers, linters, all the tooling so we could express objects as attributes?… and enforce managing state better?..

It felt like a flood of junior programmers in an echo chamber set off by an opportunistic engineers at Facebook who were more interested in creating their own job security then work to evolve an existing standard.

Seriously who honestly thinks that the authors and governing board of HTML and CSS didn’t closely consider the features in react?

What kind of arrogance does it take to say they’re fucking dumb let’s reinvent EVERY tool on front end because we know better.

But I digress…

tflinton··on A Rant about Front-end Development
Why didn’t he mentioned rewriting or adding to browser history?!
tflinton··on Decline in heart failure deaths has been undone, led by people under 45
Not necessarily. The CDC reported a sharp increase of stimulant prescriptions at the same time. Adjusted for population it’s not as dramatic as 2012 but still. Amphetamines are incredibly dangerous and cause heart failure and were being prescribed at an alarming rate until the last year.

https://www.cdc.gov/mmwr/volumes/72/wr/mm7213a1.htm

tflinton··on When do we stop finding new music?
I have discovered better music in my 30s and 40s and sort of regret my musical decisions in my teens and 20s.

Music to me is linked to my emotional state and like I’ve matured I’d like to think my music tastes have too…

but then I remember I’ve stopped listening to silly music of Fugazi and replaced it with the artistic stylings of Taylor Swift and I’m right back in my pit of despair knowing my musical sophistication is still out of reach.

tflinton··on Decline in heart failure deaths has been undone, led by people under 45
I’m fairly confused by some comments here claiming Covid or vaccines were the cause as the article clearly points out the uptick in deaths started in 2012.

I tend to think it might be the uptick in use of amphetamines. Millineials and late genx were the first to use them in wide scale with a 2.5 increase and a second derivative maxima in 2012, the same time heart failures began dramatically increasing.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261411/

Page 1 of 4Next →