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Rafael Pérez 🍁

@rperezrosario@mastodon.social
mastodon 4.8.0-nightly.2026-10-06
  • Open on mastodon.social

Hello there, fellow Fediverser. I'm a software developer based in NYC. I also happen to be a person.

I micro-blog mostly about software development in general, web app development in particular, web apis, and relational databases.

I am also interested in data visualization, AI, and CS-related topics.

He/him/his.

#developer #dotnet #webapi #sqlserver #postgresql #csharp #angular #typescript #javascript #html #css #webdev #softwaredevelopment #programming #ai #compsci #foss #a11y #nyc

1499 Followers
2673 Following
50 Posts
Joined April 07, 2025
GitHub:
https://github.com/rperez-rosario
NuGet:
https://www.nuget.org/profiles/rperezrosario
Alma Mater:
https://www.sussex.ac.uk/schools/engineering-and-informatics/about/#informatics
Port of Call:
https://en.m.wikipedia.org/wiki/Brooklyn
Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@futurebird@sauropods.win @adriano@lile.cl @jredlund@social.linux.pizza German fascists at least had competent visual and clothing designers. But what do we get? "Neo-Classic Cracker-Barrel." Bad orange fascist, bad!
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
What type of font do you prefer for reading long-form content (e.g. novels, papers)? #poll #typography #fonts #serif #reading #books

What type of font do you prefer for reading long-form content (e.g. novels, papers)? #poll #typography #fonts #serif #reading #books

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@JoBlakely@mastodon.social @catsalad@infosec.exchange Show them the power of the #dogsofmastodon tag. Even though I prefer #caturday.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@eff@mastodon.social Anyone know of any good #RSS clients for #Android? I've searched the store a few times and everything I've found so far is kinda crappy.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@evacide@hachyderm.io Long live the Butlerian Jihad!
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@khleedril@cyberplace.social That is interesting. Even though there are studies that point to the phenomena of a majority of people finding it easier to read text written using serifs, especially in long-form content.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 2mo ago
Google IDX Product Manager Kirupa Chinnathambi writes a code-backed, step-by-step review of Dijkstra's famous graph algorithm, depth, and breadth first search, touching up on Bellman-Ford and A*. This reminded me of a uni assignment where we recommended shortest path routes to passengers based on geo data from London Tube stations, using A* to compute them. "Dijkstra's Shortest Path Algorithm" #algorithms #datastructures #graphs #dfs #bfs #dijkstra #astar #compsci #javascript #programming
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 2mo ago
RE: https://flipboard.com/@polygon/star-wars-a9j0jgedz/-/a-1872Vwo7QrK4W64SB9Q9sQ%3Aa%3A785933440-%2F0 This is not at all surprising with Lucas' questionably being OK with previous Star Wars original trilogy cgi fiddling to sometimes good, and many times bad effect.
flipboard.com
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago

RE: https://stefanbohacek.online/@roots/116313911277830305

This account is filled with plant and root system illustrations. Most of which are pretty cool.

stefanbohacek.online

Roots: "Antennaria dioica. https://images.wur.nl/digital/…" - Stefan's Personal Mastodon Server

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@cy @danielmunoz@maly.io One could argue the Waymo remote operator performed a citizen's arrest on the passengers.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@elena@aseachange.com Good luck, keep up the good Fedi work!
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
This applies to the Mastodon official mobile app. The official Mastodon web app has a link ("Translate") that just works regardless of the post's language setting. It shouldn't be too hard to implement post translation this way on the official mobile app.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago

I scanned your comments (so far) in a previous poll for Mastodon mobile app mentions, and made a list sorted by frequency. I put the top four most mentioned mobile apps into this poll.

Honorary mentions to #Moshidon, #Ivory, #Trunks, #Toot, and #Tusker.

What mobile app do you use to access Mastodon the most?

Feel free to boost for a larger sample.

#poll #fediverse #mastodon #mobile #tusky #pwa #fedilab

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@jwz@mastodon.social "There is no escape, make your time."
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago
Replying to
@bloor According to this highly scientific poll, this matter has been settled. https://mastodon.social/@rperezrosario/116186949216828144
mastodon.social

Rafael Pérez 🍁: "Now that this important problem has been settled,…" - Mastodon

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago

"SQL" will be exclusively pronounced from this day henceforth:

Feel free to boost for a larger sample.

#poll #sql #databases #pronunciation

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Tiger Data author Raja Rao makes a pretty good case for reducing operational complexity by using a single database server (PostgreSQL) to supplant non-relational use cases that were previously handled by the likes of Elasticsearch, Redis, and MongoDB to name a few. He goes on to list and explain the different PostgreSQL extensions that can provide equivalent services without the database sprawl. "It's 2026, Just Use Postgres" https://www.tigerdata.com/blog/its-2026-just-use-postgres #programming #sql #postgresql #databases
tigerdata.com
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago

bytes.dev briefly reminds us that TypeScript 6.0 is the last version of TypeScript that will use JavaScript to do its compiling and type checking. TypeScript 7.0 will feature as discussed here before Microsoft's new native compiler, and multi-threaded type checker written using the Go language.

https://mastodon.social/@rperezrosario/114299644066167176

Developer experience should be improved as compile and type checking times go down.

"TypeScript 6.0 is your final warning"

https://bytes.dev/archives/473

#programming #typescript #go

Rafael Pérez 🍁 (@rperezrosario@mastodon.social)
Mastodon

Rafael Pérez 🍁 (@rperezrosario@mastodon.social)

Attached: 1 image Microsoft's own Anders Hejlsberg (creator of C# and Typescript, among other machine programming languages) writes this piece about the ongoing efforts to make TypeScript and its associated toolchain more performant by porting its compiler and tools from TypeScript itself to a lower level language (Go, in this case.) Native versions of these tools have seen performance gains of up to ten orders of magnitude. "A 10x Faster TypeScript" https://devblogs.microsoft.com/typescri

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago

Software Patterns guru Martin Fowler sanctions (Software) Architecture Decision Records (ADRs) as a good document type to add to a software architect's arsenal.

ADR's were coined by Michael T. Nygard in this 2011 article published in a cognitek blog:

https://cognitect.com/blog/2011/11/15/documenting-architecture-decisions

TL;DR? You can get a feel for the document's structure and content here:

https://martinfowler.com/articles/building-infrastructure-platform.html#ArchitecturalDecisionRecords

"Architecture Decision Record"

https://martinfowler.com/bliki/ArchitectureDecisionRecord.html

#adr #softwaredevelopment #softwarearchitecture #documentation

cognitect.com
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 5mo ago

Quanta Magazine writer Konstantin Kakaes shares the many ways large language models, genetic algorithms, and services such as AlphaEvolve are reshaping the mathematical discovery landscape. The mathematicians interviewed express a cautious optimism towards these technologies, and have achieved many goals even when the technology is imperfect in its current form. Sometimes the results are surprising.

"The AI Revolution in Math Has Arrived"

https://www.quantamagazine.org/the-ai-revolution-in-math-has-arrived-20260413/

#ai #llms #mathematics #cs

The AI Revolution in Math Has Arrived | Quanta Magazine
Quanta Magazine

The AI Revolution in Math Has Arrived | Quanta Magazine

AI is being used to prove new results at a rapid pace. Mathematicians think this is just the beginning.

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 5mo ago

Software developer and book author Alexey Makhotkin reviews fifth normal form (5NF) and offers valuable links to (some free) further information on relational database design and normalization.

"5NF and Database Design"

https://kb.databasedesignbook.com/posts/5nf/

#programming #databases #relationaldatabases #sql #databasenormalization #normalforms

Database Design Book

5NF and Database Design

Author: Alexey Makhotkin squadette@gmail.com, (~3900 words) One of the goals of this publication is to deconstruct the traditional ways of teaching basic topics in relational databases. Previously we discussed the fourth normal form (4NF): “Historically, 4NF explanations are needlessly confusing”. Let’s discuss the ultimate beast: fifth normal form (5NF). Often it’s presented even more confusingly than 4NF is, and we can show that this presentation is unnecessary, and the confusion is completely

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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago
Replying to
@Daojoan@mastodon.social If you stare at the void long enough, the void stares at you.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago

C# Corner author Aarav Patel breaks down the differences between system-level threads and .NET tasks using a "restaurants and chefs" analogy in this brief post.

.NET tasks are preferred in most situations largely in part due to performance considerations. They also integrate more seamlessly with async/await language constructs, which can mean cleaner code.

"What is the Difference Between Task and Thread in C#?"

https://www.c-sharpcorner.com/article/what-is-the-difference-between-task-and-thread-in-c-sharp2/

#programming #csharp #dotnet

c-sharpcorner.com
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago
Replying to
@roots@stefanbohacek.online I will check those out. Thank you for the links!
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@pojntfx@mastodon.social That would be great.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@deborahh @mayintoronto @moshidon I haven't tried Moshidon but I don't think it's a PWA.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@deborahh @mayintoronto @moshidon Hi. PWAs are a way to distribute web applications. They usually consist of a web browser pointing directly to the web application, packaged as a stand-alone app with its own icon that can be placed in a mobile phone's home screen, or desktop os's desktop/start menu. It saves users from having to open a browser and browse to the application instead. There are other technical details but that is it, in a nutshell.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@deborahh @mayintoronto Quotes is a pretty cool feature. Hope the feature gets added to Moshidon soon.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@catsalad Clever.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@jorgecandeias Received, thank you for letting me know. I will take it in consideration on future polls.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 8mo ago
Replying to
@mcc@mastodon.social I developed a web site very early in my career using Future Splash Animator. In some ways the technology was way ahead of its time.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 8mo ago
Replying to
@theresmiling@ibe.social 💯
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 8mo ago
Replying to
@theresmiling@ibe.social Thank you for sharing that. Sorry to hear of that limitation. Maybe language per post is a feature they might implement hopefully in the near future. There's so much interesting stuff out there in other languages and the translations have gotten generally good.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@nSonic Mona, Toot and Ivory were mentioned. Just not as often.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 2mo ago
Replying to
@tante@tldr.nettime.org Long live the Butlerian Jihad!
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 8mo ago
Replying to
@broadwaybabyto@zeroes.ca That's REALLY bad. Hope justice is served.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@ellie All comments were positive, and anecdotal (self-reported current users of a mentioned mobile app.)
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@mirabilos@toot.mirbsd.org @newstik@social.heise.de It's Friday and yes, it's pretty big (mastodon.social).
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Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago
Replying to
@coreyspowell The joy we get from all the cool pictures and videos makes space exploration worth every penny spent realizing them.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago
Replying to
@nivex
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Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 8mo ago
@fluidlogic IBM PC XT.
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Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
RE: https://mastodon.cloud/@slashdot/116891826640634536 Makes one wonder how much of this "government greenlighting LLM releases" initiative is about actual public safety, and how much is corrupt hype-boosting for politicians' own investment earnings. #ai #llms #chatgpt #uspol
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Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@railwhale@mastodon.nz @eff@mastodon.social Thank you. I'm checking it out as someone else has mentioned it as well.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 2mo ago
Replying to
@nixCraft@mastodon.social Had seen this before, but still lol.
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Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 8mo ago
Replying to
@pikesley@mastodon.me.uk The fact that one could substitute the acronym "LLM" with the word "artist" without the quote losing sense, is eeryly suggestive.
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@wcbdata Say it: Es-Queue-El. 😁
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 6mo ago
Replying to
@nothacking What frequency are you transmitting on?
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Open post
Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@yoginho@spore.social @cstross@wandering.shop @quixoticgeek@social.v.st My own words.
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Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 3mo ago
Replying to
@NuclearOatmeal@beige.party @hal_pomeranz@infosec.exchange After the perfunctory "hello world" program, I code a succinct framework for computing using genetic algorithms. I make it an OO-workout. So far I've done this for Java, Ruby, and C#, with a C++ version in progress.
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Rafael Pérez 🍁 @rperezrosario@mastodon.social
· 7mo ago
Replying to
@Daojoan@mastodon.social Filed under "Self-Fulfilling Prophesies."
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