Hacker News: fernandezpablo

New comment by fernandezpablo in "Domain expertise has always been the real moat"

fernandezpablo — Sun, 31 May 2026 15:37:25 +0000

Things the domain expert on the author's example cant tell (from the top of my head):

- is the app is properly deployed - how will the release cycle be - is it secure? - can we run two instances of it without messing up the orders/routes/whatever? - will we spend 5k/month in vercel if people start using it - how will we notice service degradation - if we change the data do we have downtime? how do we schedule that downtime window. - where is the code stored? can the team access it? - how are new contributors onboarded? - does the app use credentials and where to store them? - does the app manipulate or store PII? - if the user refreshes the app does it generate a duplicate order/route/whatever? - if there's an upstream service are we making sure our timeouts are properly configured? - if there's an upstream service are we making sure our connection pool is properly configured? - do we have a max connection lifetime so that middleware like AWS NAT or ALB don't leave us with dead connections in our pool?

I think that makes the point clearly. Also it may explain why software developer jobs are currently on the rise despite SWE-Bench-Pro-Ultra-Magic has been maxxed for months now.

New comment by fernandezpablo in "Opus 4.5 is not the normal AI agent experience that I have had thus far"

fernandezpablo — Fri, 09 Jan 2026 21:45:55 +0000

Starting back in 2022/2023:

- (~2022) "It's so over for developers". 2022 ends with more professional developers than 2021.

- (~2023) "Ok, now it's really over for developers". 2023 ends with more professional developers than 2022.

- (~2024) "Ok, now it's really, really over for developers". 2024 ends with more professional developers than 2023.

- (~2025) "Ok, now it's really, really, absolutely over for developers". 2025 ends with more professional developers than 2024.

- (~2025+) etc.

Sources: https://www.jetbrains.com/lp/devecosystem-data-playground/#g...

Its faster because its C (2010)

fernandezpablo — Fri, 07 Jun 2024 13:58:04 +0000

Article URL: https://web.archive.org/web/20100716203206/http://pl.atyp.us/wordpress/?p=2947

Comments URL: https://news.ycombinator.com/item?id=40608765

Points: 2

# Comments: 0

New comment by fernandezpablo in "Git as a debugging tool"

fernandezpablo — Sun, 31 Mar 2024 14:14:52 +0000

> A nice way to see the pathspecs in action is using git ls-files. That command lists all the files in the staging area,

This should read "That command lists all the files in the _working directory_"

Twitter needs to decentralize or it will die (2010 – Alex Payne)

fernandezpablo — Wed, 27 Apr 2022 14:43:48 +0000

Article URL: https://www.al3x.net/blog/2010/09/15/the-very-last-thing-i-ll-write-about-twitter

Comments URL: https://news.ycombinator.com/item?id=31180502

Points: 2

# Comments: 0

New comment by fernandezpablo in "Cuba′s Covid vaccine rivals Pfizer, Moderna"

fernandezpablo — Tue, 29 Jun 2021 04:22:24 +0000

1. Yes. Twice.

2. Yes. Happy to read the Cuban vaccine one, do you have a link?

New comment by fernandezpablo in "Cuba′s Covid vaccine rivals Pfizer, Moderna"

fernandezpablo — Sun, 27 Jun 2021 20:48:38 +0000

Can't believe people is so eager to believe in this without any real scientific publication of vaccine efficacy.

Cuba lacks things so common as soap, to the point that you can bribe police officers or even pay sex workers with a tiny hotel soap bar or shampoo flask.

New comment by fernandezpablo in "Cuba′s Covid vaccine rivals Pfizer, Moderna"

fernandezpablo — Sun, 27 Jun 2021 20:44:27 +0000

I'll add another trivia: they also throw you in jail if you speak badly of the current regime, which btw doesn't allow free elections.

Introduction to Genetic Algorithms in Python

fernandezpablo — Tue, 28 Jan 2020 22:02:41 +0000

Article URL: https://dev.to/fernandezpablo/introduction-to-genetic-algorithms-in-python-e9p

Comments URL: https://news.ycombinator.com/item?id=22174578

Points: 2

# Comments: 0

Latency numbers every TV fan should know

fernandezpablo — Thu, 23 Jan 2020 17:41:37 +0000

Article URL: https://medium.com/@fernandezpablo/latency-numbers-every-tv-fan-should-know-992e1b041313

Comments URL: https://news.ycombinator.com/item?id=22129712

Points: 4

# Comments: 0

New comment by fernandezpablo in "Autopilot Full Self-Driving Demonstration [video]"

fernandezpablo — Sat, 19 Nov 2016 18:02:33 +0000

Is it doing a weird maneuver on 1:32 or is it just me? Something like stopping right after turning. I'm not full aware of the USA transit laws so this might be required but it doesn't seem likely.

Testing Java Libraries from ScalaCheck

fernandezpablo — Tue, 02 Aug 2016 13:42:19 +0000

Article URL: http://videlalvaro.github.io/2016/07/testing-java-libraries-with-scalacheck.html

Comments URL: https://news.ycombinator.com/item?id=12209841

Points: 2

# Comments: 0

New comment by fernandezpablo in "Why we’re no longer using Core.typed"

fernandezpablo — Thu, 24 Sep 2015 15:27:35 +0000

That's a ton, you're probably not using typescript incremental compilation feature but recompiling your whole codebase instead. Even in that case, 7 seconds for compiling a 100k LOC code base is not even close to what I call "slow".

New comment by fernandezpablo in "Why we’re no longer using Core.typed"

fernandezpablo — Thu, 24 Sep 2015 13:56:29 +0000

I disagree. Typescript is an excellent example of an optional static type system that works great. It has none of the 3 problems the OP describes: it's fast, it nicely encompasses the whole language and the Definitely Typed repository includes a TON of 3rd party library type definitions.