To add - I agree that payments is great question for systems designs.
Merchants need to receive the money and being able to transact with it. Imagine the merchant receiving the payment is something like Amazon or Ebay (sorry, I don't know what similar large online retailers are in India).
With the above, the problem becomes harder. Imagine receiving 2-3k TPS just on one account during a black Friday or similar day.
Now your system has to perform fine for accounts that do 30 transactions an hour for a retail customer and 3k a second for a merchant.
This is common across all corporations. My go-to example is Unilever or Nestle pushing products that are 100% unhealthy.
In Asia, it's not uncommon to see healthy drinks for children that are sugar+artificial flavouring with huge marketing campaigns targetting the parents . The corporation makes millions and then advertises how they donated $10k to an obesity charity.
The gains are ~17% increase in individual effectiveness, but a ~9% of extra instability.
In my experience using AI assisted coding for a bit longer than 2 years, the benefit is close to what Dora reported (maybe a bit higher around 25%). Nothing close to an average of 2x, 5x, 10x. There's a 10x in some very specific tasks, but also a negative factor in others as seemingly trivial, but high impact bugs get to production that would have normally be caught very early in development on in code reviews.
Obviously depends what one does. Using AI to build a UI to share cat pictures has a different risk appetite than building a payments backend.
I have a script for each of my projects that I run when I open a new terminal window (Alacritty). The scripts set up tmux with 3-8 terminals, each terminal launches a components, utility or just sits in a folder from which I later run commands.
Having said that, I use only a few zsh plugins, and have a theme configured to not run commands that add extra latency.
Something that I find amusing in the Java community is that a good number of senior developers, with anything from 5-20 years of experience, who do 'tdd' have never heard of the concept of test doubles and religiously think that a class must be tested in complete isolation mocking everything else.
The saddest one I saw was a team trying to do functional programming (with Spring). The tech lead was a bit flummoxed when I asked why mocks are not used in functional languages and continued to think that 'mocking functions' is the correct way to do TDD.
A quick google shows this for FF (taken from a thread in StackOverflow):
> In Firefox you can completely disable beforeunload events by setting dom.disable_beforeunload to true in about:config. Extensions may be needed for other browsers.
A word of caution: I'm not 100% sure, but I wonder if some web collaboration tools might use this to ensure data has been synced with a server.
[posted this in another thread, but maybe the author can clarify this]
I wonder how this works when one runs test in parallel (something I always enable in any project). By this I mean configuring JUnit to run as many tests as cores are available to speed up the run of the whole test suite.
I took a peek at the code and I have the impression it doesn't work that well as it hooks into when a thread is started. Also, I'm not sure if this works with fibers.
I wonder how this works when one runs test in parallel (something I always enable in any project). By this I mean configuring JUnit to run as many tests as cores are available to speed up the run of the whole test suite.
I took a peek at the code and I have the impression it doesn't work that well as it hooks into when a thread is started. Also, I'm not sure if this works with fibers.
A side comment, I have found that configuring a few live templates in IntelliJ helps me to write a lot of the repetitive code just a handful of keystrokes regardless of the language.
Structural refactoring is another amazing feature that is worth knowing.
I find a bit odd that MS didn't have a couple of people in the board of directors, who I assume accepted Sam Altman resignation (and signed the severance package).
Edit: I just read he was fired, but the point remains.
I have the strong impression that most people confound cloud to be public only. Private clouds are fine and deliver a lot of the flexibility at a big % discount of a public cloud.
The big gain from clouds is the flexible infrastructure, especially in the microservices world we are now. In the past, one needed to procure, provision, etc a new server to run a service (times X per environment). With a cloud, regardless if it's public or private, provisioning a VM (or container) to run a new service is a few clicks away.
I only skimmed through the article, but if I understood correctly the scammers made $23m, now have to repay $3.3m (which probably will never happen) and some of their assets were taken. They were given 4 and 6 year prison sentences (which might be cut short for good conduct I assume).
So in 3 years these blokes come out, with probably ~5m-10m stashed away? Not a bad ROI :(.
Thanks for sharing this! I'm just getting my head around category theory (in Haskell).
I would appreciate if anyone knows of a small project out there that uses category theory to learn how to design and architect a solution (even better if it's in Haskell!)
Merchants need to receive the money and being able to transact with it. Imagine the merchant receiving the payment is something like Amazon or Ebay (sorry, I don't know what similar large online retailers are in India).
With the above, the problem becomes harder. Imagine receiving 2-3k TPS just on one account during a black Friday or similar day.
Now your system has to perform fine for accounts that do 30 transactions an hour for a retail customer and 3k a second for a merchant.