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Filip Hracek

@filiph.mastodon.social.ap.brid.gy
20 followers 0 following 93 posts

I’m a pro­gram­ming buff with formal train­ing in jour­nal­ism. I worked in Sili­con Valley, now I’m based in Prague. I build games, teach pro­gram­ming, explain […] 🌉 bridged from ⁂ mastodon.social/@filiph, follow @ap.brid.gy to interact

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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 15/10/2026
GIANT ROBOT GAME has a new trailer (updated after 3 years of development). Here it is: www.youtube.com/watch?v=22IIYgE_rko
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 14/10/2026
Today I realized that I have a Kevin Bacon number and it's surprisingly low, only 3 — through Joseph Fiennes and Colin Firth. That's me in the background, as an extra in the historical movie Luther (2003). en.wikipedia.org/wiki/Six_Degrees_o…
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 12/10/2026
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 12/10/2026
Včera jsem si vzpomněl na svůj starý interaktivní projekt o alternativních způsobech hlasování. Tak tady je: fajfka.cz/lepsi-volby
fajfka.cz
Lepší volby
Pomalý ale jistý způsob, jak zlepšit ČR
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 04/10/2026
Good news, people! I just published a new #Flutter and #Dartlang benchmark blogpost: filiph.net/text/dart-for-loops-perf…
filiph.net
Benchmark: Which Dart loop is the fastest?
Yet another microbenchmark, for science!
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 04/10/2026
Ugh.
techhub.social
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Reposted by Filip Hracek
Jiří Fiala Total Landscaping @stooovie.mas.to.ap.brid.gy · 08/09/2026
THREE different people called me today if I was free to help them fix a video project ASAP. AI videos probably don't make themselves, I don't know. Also no, I'm probably the busiest I've ever been.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 05/09/2026
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 03/09/2026
Každopádně, myslím, že je užitečné do těchle věcí šít. Žádný debil by si neměl myslet, že je všemocný a všemi milovaný, a narozdíl od nasraného psaní příspěvků na sociální média, oficiální žádost má nějakou možnost se dostat až k adresátovi.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 03/09/2026
Možná si pamatujete na to, jak začátkem srpna Ministerstvo zahraničních věcí zakázalo vstup na tiskovku novinářce, ostentativně kvůli tomu, že pochází z "alternativního média" (byla to novinářka Deníku N, který nejen není "alternativní", ale za posledních pár […] [Original post on mastodon.social]
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 02/09/2026
Guess what, I benchmarked Flutter state management libraries. The results are very much what you'd expect (i.e., it's very anticlimactic). filiph.net/text/flutter-state-manag… #flutter
filiph.net
Benchmark: Flutter state management approaches and thier performance
Does using a particular state management technique really have an impact on performance?
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 02/09/2026
RE: mastodon.social/@danluu/11719705413… I didn't know who Ed Zitron is until today but reading this article was illuminating nonetheless. I tend to be on the skeptical side when it comes to AI much more often than on the optimistic side. So it's important for me to hear about […]
mastodon.social
Original post on mastodon.social
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 31/08/2026
RE: witter.cz/@banterCZ/117188745540693… This is my "layered skills" argument from a different perspective, argued much more elegantly than I ever could.
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Reposted by Filip Hracek
Matt Henderson @matthen.com · 26/08/2026
To tell if a maze is solvable, just hang it by its corners If it tears into pieces, you’ve found a solution
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 25/08/2026
Today, I don't have a blog post for you. Instead, I simply do a little bit of digital archiving of an important Alan Kay paper about personal computing devices, games, and learning: filiph.net/text/alan-kay-personal-c… #history
filiph.net
Alan Kay: A Personal Computer for Children of All Ages (1972)
A 1972 paper that predicted the iPad (or, rather, it's spiritual opposite) but is actually way more important than that.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 24/08/2026
Good news, everyone! New preview release: ### v0.2.121+148 *SHINOHARA* * Implement proper long range scanner (LRS), including terrain * Deployments (mines, turrets) now require the deployer to be in range, and the deployment is also rendered with a "beam" […] [Original post on mastodon.social]
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 24/08/2026
Working on "boring" stuff for the demo release. #indiedev
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 21/08/2026
New short article: filiph.net/text/2026-08-21-11am-no-…
filiph.net
“AI will only do the drudging work,” they said
The counter to the perennial argument that "humans have seen their work automated before".
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 19/08/2026
Explain ludonarrative dissonance in under 15 seconds
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 19/08/2026
Countries where population has already peaked, from 1980 to 2100. Source: UN, World Population Prospects (2024) Visualization by World in Data: ourworldindata.org/which-countries-…
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 18/08/2026
> Of course if someone said “to solve our political problems, we just need to find the right totalitarian dictator. The right dictator would select the right successor, so, by induction, this system will be perfect forever!”, you would laugh at them. But replace “dictator” with “aligned ASI” […]
mastodon.social
Original post on mastodon.social
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 07/08/2026
@honzajavorek Souhlas. Proto říkám, že rozšiřování po rovince je s vyšší _pravděpodobností_ — nechci tím říct, že by se úplně zakázalo rozšiřování do terénu (sám bydlím na kopci). Ono by se to asi dalo i nějak vypočítat ze současného stavu. Jako že vzít nějaký střed Prahy a jet od něj flood […]
mastodon.social
Original post on mastodon.social
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 07/08/2026
@honzajavorek Nebylo by špatné udělat nějaký jednoduchý model. Vzít volně dostupná terénní data, zkombinovat s daty o současné zástavbě, a udělat flood fill s tím, že město se rozšiřuje po rovinně s vyšší pravděpodobností než do kopce. Třeba. Myslím, že by z toho vyšlo ještě děsivější monstrum […]
mastodon.social
Original post on mastodon.social
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 07/08/2026
Právě mi došlo, že ten čtverec můžu nasdílet jako link, takže tady: mapy.com/cs/letecka?mereni-vzdaleno… Můžete třeba vidět, že Karlštejn by byl uprostřed Pražské zástavby (a měl by ještě několik kilometrů k […]
mastodon.social
Original post on mastodon.social
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 07/08/2026
Zdroje: - csu.gov.cz/pha/pohyb-obyvatelstva-v… - www.thesisdriven.com/letters/on-pop…
csu.gov.cz
Pohyb obyvatelstva v hl. m. Praze v 1.-3. čtvrtletí 2025 | Praha
V 1.-3 čtvrtletí roku 2025 stoupl počet obyvatel v Praze oproti konci roku 2024 podle předběžných výsledků o 2 881 osob na celkových 1 400 761 obyvatel. Počet obyvatel Prahy se tak poprvé v historii hlavního města přehoupl přes hranici 1,4 miliónu. Za nárůstem počtu obyvatel stál výhradně přírůstek stěhováním (3 619 osob), přirozenou měnou naopak ubylo 738 osob. V porovnání s definitivními údaji z 1.-3. čtvrtletí roku 2024 došlo k meziročnímu snížení celkového přírůstku a přírůstku stěhováním. Meziročně poklesl počet živě narozených a přistěhovalých, a zvýšil se počet zemřelých a vystěhovalých.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 07/08/2026
Zajímalo mě, jak zhruba velká by byla Praha, kdyby místo bytů všichni bydleli ve volně stojících domech amerického stylu. Vycházel jsem ze nejposlednějšího odhadu obyvatelstva, který jsem našel (1.4M) a 618 lidí na km² (americký průměr mid-density suburban) […] [Original post on mastodon.social]
mapa
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 05/08/2026
Can anyone id the author of this? I found it on a random forum.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 05/08/2026
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 31/07/2026
New GIANT ROBOT GAME update: - Add intercept behavior to AI (enemies will try to anticipate your move instead of simply dragging behind you; this eliminates a degenerative strategy of "just keep running away") - Add ballistics to projectiles (shots now […] [Original post on mastodon.social]
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 29/07/2026
Very happy about this feedback for GIANT ROBOT GAME playtest. I mean, my game is mostly 2D, which helps, but in the age of "let's just build it in <insert huge all-purpose engine>", it's heartening to see. #indiedev #gamedev
USER FEEDBACK: Runs great on my shitty laptop! Most steam demos I
pick up can't even run the title screen smoothly, but this whole
game runs Like a dream.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 21/07/2026
As always, great information from Our World in Data: ourworldindata.org/how-much-energy-… My opinion: - using LLMs for simple queries that you could just find yourself in a few seconds is way too […] [Original post on mastodon.social]
How does the electricity consumption of individual AI queries
compare to other everyday activities?
Marginal increase in electricity consumption from different activities, measured in watt-hours (Wh).
Typical ChatGPT query | 0.3 Wh
LED bulb for 5 minutes | 0.8 Wh
Laptop for 5 minutes | 2 Wh
Long-input query
51560 words 2:5 Wh
Running an electric
shower for 1 second | 2.6 Wh
Watching TV for 10 minutes [ 10 Wh
Average EU consumption
per person per minute [| 12Wh
Microwaving for 1 minute [| 17 Wh
Charging a mobile phone [|] 20 Wh
Average US consumption [
per person per minute 24 Wh
Maximum-input query
(75000 words) NRE ©"
shower for 1 minute
Note: Estimates for Al cover inference only; however, model training adds little per query given how many queries each model serves over its lifetime.
Data source: Al text query estimates from EpochAl (2025). Other estimates explained at https:/hannahritchie.github.io/energy-use-comparisons.
OurWorldinData.org — Research and data to make progress against the world’s largest problems. Licensed under CC-BY by the author Hannah Ritchie.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 21/07/2026
New quick blogpost about something that grinds my gears in Chrome: filiph.net/text/choppy-progress-in-… Just realized that you, @paul, could have some insight on this? #webdev
filiph.net
Why is &lt;progress&gt; so choppy in Chrome?
How come so many of the most talented engineers of our time work on making our entertainment more immersive?
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 17/07/2026
Good news, everyone! I've put my trusted old `are_we_there_yet.sh` script on the web. Some Flutter folks might find it useful: filiph.net/text/are-we-there-yet.ht… #flutter
filiph.net
Are we there yet?
Find out if your favorite feature have made it to the latest Flutter SDK
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 09/07/2026
Ah, this is eye-opening: > John Cage never stopped foraging for rare mushrooms and truffles - what was once his primary skill for sustenance during the Great Depression had transformed into his main source of income well into the peak of his musical career […] [Original post on mastodon.social]
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 09/07/2026
New blogpost! filiph.net/text/to-make-money-be-us…
filiph.net
If you want to make money, be useful to rich people
A piece of advice that is also a (somewhat sad) statement of fact
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 07/07/2026
I use kagi.com for search these days but today, I got a report from Google Search Console about my filiph.net website, so I decided to search for filiph.net on Google, and it's just bizarre: searching for "filiph.net" returns _anything but_ filiph.net. These […] [Original post on mastodon.social]
screenshot of google search for "filiph.net" that returns a bunch of pages but none of them are https://filiph.net
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 01/07/2026
Maybe you know, maybe you don't, but LG (#2 in worldwide TV sales, and #1 in OLED) is switching the TV operating system to using Flutter. So if you want to build an big-screen app in Flutter, there's now a massive platform you could target. Their Flutter SDK was just open sourced here […]
mastodon.social
Original post on mastodon.social
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 29/06/2026
@banterCZ jmenuje se to Knights of San Francisco. Pouze v angličtině, bohužel.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 26/06/2026
RE: infosec.exchange/@lcamtuf/116813739… This is hilarious! I mean it. This is the kind of stuff my friends and I would dream up when absolutely hammered. Just look at those illustrations! And those are actual books that you can buy on Amazon! (Sadly, there's evidence people […]
mastodon.social
Original post on mastodon.social
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Reposted by Filip Hracek
Jiří Fiala Total Landscaping @stooovie.mas.to.ap.brid.gy · 26/06/2026
Quaint. Electronic Entertainment, 1994
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 25/06/2026
Operation Flashpoint (the precursor to ARMA games) is now open source on github, courtesy of Bohemia Interactive: github.com/BohemiaInteractive/CWR This is the earliest example of an "infantry sim" I can think of. It was one of those games where you […] [Original post on mastodon.social]
screenshot from Operation Flashpoint (aka Arma: Cold War)
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 25/06/2026
Good news, everyone! I have some time to sink into GIANT ROBOT GAME again. Behold the much-improved tech tree. #indiegame #gamedev
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 23/06/2026
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 19/06/2026
FWIW, I also submitted this to HackerNews because I thought it's a good fit for the site. Feel free to discuss there if you're so inclined. news.ycombinator.com/item?id=486002…
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 19/06/2026
New blogpost, in which I explain how I built my command-line poker game (that you can play through SSH on my server). filiph.net/text/pokerd.html #indiegame #gamedev #programming
filiph.net
How I built a CLI poker game that you don’t need to install to play
A command-line poker game where you play against bots to train real-world skills.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 10/06/2026
Arch btw is the strongest version of linux
Question on the internet:

Where can I find the btw version of Arch Linux? I always see people in the Linux community saying they use Arch btw but I couldn't find the btw version in their website. [...] I'd like to give it a try.
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Filip Hracek @filiph.mastodon.social.ap.brid.gy · 10/06/2026
A bit of a yak shaving exercise (no new features) but GIANT ROBOT GAME now has integration tests you can actually watch. Inspired by Factorio's visual testing suite, this should help develop some of the more advanced AI behaviors. #gamedev #indiegame
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Reposted by Filip Hracek
Trish Greenhalgh @trishgreenhalgh.bsky.social · 23/05/2026
Every summer I repost this article on how to spot drowning. Please read it and pass on. In the last few years I’ve had SIX messages from people who saved a kid’s life after clicking on the link from my feed. slate.com/technology/2...
slate.com
Drowning Doesn’t Look Like Drowning
Drowning is not the violent, splashing call for help that most people expect.
253133969733 13.4K
Filip Hracek @filiph.mastodon.social.ap.brid.gy · 03/06/2026
stolen from nyx, a local forum
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