Show HN: We built a terminal-only Bluesky / AT Proto client written in Fortran

FormerLabFred 65 points 35 comments March 20, 2026
github.com · View on Hacker News

Yes, that Fortran.

Discussion Highlights (11 comments)

cat-turner

out of curiosity, why fortran? no disrespect. I wrote a lot of scientific software in the earlier days of my career and I learned fortran to update ocean modeling software.

blundergoat

fortran > cobol

uberdru

The world is a better place for this app. Wonderful!

hk1337

Are there any other AT protocol apps that aren’t derivatives of bluesky? By that I mean, not social media feed related, twitter clone.

h4ch1

It's always nice to see production codebases in languages that you've never used but are interested in. Tangential, but to the author, are there any FORTRAN codebases you feel are well designed?

aimarketintel

AT Protocol is a joy to build on — open public data, structured JSON, zero auth friction. I built a Bluesky scraper using the same endpoints and it's one of the most stable scrapers I have. Great to see more tools for this ecosystem.

nerdypepper

y'all gotta throw this up on https://tangled.org ;)

zoom6628

Brilliant in every possible way. Fortran was first language I learnt at high school in its "PORTRAN" variant.

isodev

On ATProto: it’s funny how we never learn the lesson: - VCs band together to fund something shiny. - Devs love shiny, helping spread the something. - VCs enschitify it to get their coins back.

Ashkaan

Oh this is cool

youhai

From my experience building browser automation tools, the biggest challenge with most Chromium-based solutions is that their TLS fingerprint is a dead giveaway. Firefox-based approaches tend to fare much better against JA3/JA4 fingerprinting. The key insight is moving fingerprint spoofing from the JS level (which is itself detectable) down to the native C++ level. It's a fundamentally different approach.

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