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simon_acca

935 karma · joined March 20, 2015

Ping me at hi@xplorh.com

meet.hn/city/ch-Zurich

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simon_acca··on Ask HN: Best codebases to study to learn software design?
redis
simon_acca··on Show HN: Offline SOS signaling+recovery app for disasters/wars
The EU is mandating Apple to implement WiFi-Direct https://www.ditto.com/blog/cross-platform-p2p-wi-fi-how-the-...

WiFi doesn't fare any better than BLE under rubble unfortunately, but WiFi is going to be a useful technology to build disaster response tools in general

simon_acca··on Contribution of OS to slim nature and passive fanless cooling of MacBook Airs
Plenty to read on this topic here

https://eclecticlight.co/m1-macs/

A good start is the series of articles “Making the most of Apple silicon power”

simon_acca··on Poll: Unitree Stunts: CGI or Real?
clickable link https://x.com/UnitreeRobotics/status/1902218781268832538
simon_acca··on Ask HN: Books about people who did hard things
Cool question!

Patrick Collison (of stripe fame) put together a collection of historical ambitious projects that got done quickly, look into the biographies of people mentioned in there. https://patrickcollison.com/fast

simon_acca··on Ask HN: How does my ISP know I am making a WhatsApp call?
They do it via operator specific IP pools https://www.whatsapp.com/cidr.txt
simon_acca··on I replaced my son's school timetable app with an e-paper
Very cool!

If someone is looking for something similar with less hassle, let me plug my friend’s product :) https://www.inklay.app/ I’ve been using it for the better part of a year now to show the weather, a dashboard and some comics and am very happy with it, it just works and looks great too

simon_acca··on Starlink Direct to Cell
SpaceX has no qualms launching competitors constellations, it has done so with Kupier already.

Sure the prices might not be quite as good as what Starlink gets but definitely comparable in big-O notation (especially compared to other launch providers).

simon_acca··on Did your car witness a crime? Bay Area police may be coming for your Tesla
They have this on airliners now https://en.m.wikipedia.org/wiki/Flight_operations_quality_as...
simon_acca··on Ask HN: How do you sync your Git repos across machines at home?
Git is peer to peer, you can add an ssh remote that points to the directory containing the git repo on another machine.

https://stackoverflow.com/questions/4131164/how-do-i-pull-fr...

simon_acca··on Emotional about X11: I'm creating a pure X11 “emoji keyboard”
Nice project!

Made me think of the emoji physical keyboard from Tom Scott https://youtu.be/3AtBE9BOvvk

simon_acca··on Testing sync at Dropbox (2020)
Seems like a great use case for https://antithesis.com
simon_acca··on Ask HN: Drumset form-factor for alternative keyboard?
Something could be hacked together with this perhaps https://jouemusic.com/en

It is not big but it is meant as a computer input device that can be struck with drumsticks

simon_acca··on Ask HN: How to identify value and how to create one?
I meant Github issues of open source projects, maybe it's not so obvious :)
simon_acca··on Ask HN: How to identify value and how to create one?
Github issues are an infinite well of tasks that people find valuable, and they make for a great portfolio too
simon_acca··on Show HN: 3 years and 1M users later, I just open-sourced my "Internet OS"
The experience of making and publishing websites and apps from within puter is sobering for how simple it is. Something to aspire to
simon_acca··on Reifying execution, the interactive programming missing piece by Juan Monetta [video]
The provided link jumps directly to the flowstorm demo, while the initial 15 minutes provided an overview of the problem statement.
simon_acca··on Show HN: Scan QR codes to check in guests registered via Google Forms
> the average techy has through some combination of general news like this and just enough technical know how formed an unrealistic threat model for themselves.

amen :)

simon_acca··on Show HN: Scan QR codes to check in guests registered via Google Forms
Not only do I agree with you, but I don’t think anyone would be able to tell an attack was imminent if they were to see the URL anyway. I was just providing facts to the comment above that didn’t seem to think RCE are a thing anymore.
simon_acca··on Show HN: Scan QR codes to check in guests registered via Google Forms
Remote code execution vulns are still routinely discovered, for example: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4199...
simon_acca··on Show HN: Scan QR codes to check in guests registered via Google Forms
There’s apps that just scan the qr code into a text field no matter what its content is, then you can inspect the URL manually.

Unfortunately there’s a deeper problem in this security model, in that only a tiny tiny fraction of the web’s userbase knows how to assess a URL, and even experts can easily struggle

simon_acca··on Germany hits 80 GW milestone
With some caveats perhaps... theoretically speaking if 80GW of PV were to produce at 100% output power 24/day that would be about 700TWh in a year
simon_acca··on Germany hits 80 GW milestone
For context, demand in Germany sits at about 500 TWh/year

https://ourworldindata.org/grapher/electricity-demand?tab=ch...

simon_acca··on XetCache: Improve Jupyter notebook reruns by caching cells
Some prior art: https://github.com/nextjournal/clerk

> Clerk notebooks always evaluate from top to bottom. Clerk builds a dependency graph of Clojure vars and only recomputes the needed changes to keep the feedback loop fast.

simon_acca··on Cloudflare is experiencing elevated 5xx responses
posthaven seems like a good shot: https://posthaven.com See faq>archive mode

Of course it’s nothing more than an organization of people promising you that they will keep the lights on for you insofar as it is feasible, but i’m not sure you can get better than that in practice

simon_acca··on Ask HN: What is the best way to get into Physics as a coder?
“Structure and interpretation of classical mechanics” by Sussman bridges this gap beautifully
simon_acca··on How to easily pay a single employee in another country
Look up "employer of record"
simon_acca··on Autonomous excavator constructs a six-metre-high dry-stone wall
I recently witnessed something similar dating back to pre-Inca times in the archeological city of Quilmes: https://drive.google.com/drive/folders/1-6DnSeACUPUUskeJJIuB...

We have them in Italy too btw, search for “muretti a secco”.

simon_acca··on Ask HN: Self-host small business stack for a brewery?
Odoo is a nice and easily customizable (in Python, iirc) ecosystem if you can find what you need in there
simon_acca··on Ask HN: Distributed Systems Course Suggestions
This lecture series by Martin Kleppman is excellent: https://youtube.com/playlist?list=PLeKd45zvjcDFUEv_ohr_HdUFe... as well as his book “ Designing Data-Intensive Applications”

Reading trough the Jepsen analyses is also invaluable (not for the faint hearted, you might find some software that is dear to you absolutely torn to shreds in there): https://jepsen.io/analyses

Finally, all of the classic papers are worth a read: spanner, bigtable, google file system, dynamodb, chubby, dapper, the google paxos engineering paper, the main ones from Lamport… that said distributed system is a vast field, resources as far apart as the bitcoin paper or the original Shapiro paper on CRDTs might be of interest :)

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