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ActivityPub over ATProto
🚀 ActivityPub vs. ATProto: A New Era of Decentralized Social Media
ActivityPub and ATProto are two protocols vying for dominance in the decentralized social media space. ActivityPub enables interoperability between different social media platforms, allowing users to follow, interact with, and share content across services seamlessly. By leveraging ActivityPub, users can maintain control over their data while experiencing a more cohesive and expansive social media network.
2:05 pm, July 10, 2026
guid
https://news.ycombinator.com/item?id=48859784
source_url
https://berjon.com/ap-at/
author_name
albuic
id: 4665
uid: KbZvD
insdate: 2026-07-10 14:05:06
title: ActivityPub over ATProto
additional:
ActivityPub and ATProto are two protocols vying for dominance in the decentralized social media space. ActivityPub enables interoperability between different social media platforms, allowing users to follow, interact with, and share content across services seamlessly. By leveraging ActivityPub, users can maintain control over their data while experiencing a more cohesive and expansive social media network.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48859784
source_url: https://berjon.com/ap-at/
updated:
image:
author_name: albuic
author_link:
uid: KbZvD
insdate: 2026-07-10 14:05:06
title: ActivityPub over ATProto
additional:
🚀 ActivityPub vs. ATProto: A New Era of Decentralized Social Media
ActivityPub and ATProto are two protocols vying for dominance in the decentralized social media space. ActivityPub enables interoperability between different social media platforms, allowing users to follow, interact with, and share content across services seamlessly. By leveraging ActivityPub, users can maintain control over their data while experiencing a more cohesive and expansive social media network.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48859784
source_url: https://berjon.com/ap-at/
updated:
image:
author_name: albuic
author_link:
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- Ask HN: Is anyone experimenting with different ways of using LLMs for coding?
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- Ask HN: My ISP is telling my neighbors their slow internet is because of me
- Ask HN: Please restrict new accounts from posting
- Ask HN: Remember Fidonet?
- Ask HN: Share your productive usage of OpenClaw
- Ask HN: So what happened to Facebook "localhost" tracking?
- Ask HN: What Are You Working On? (March 2026)
- Ask HN: What are you working on? (June 2026)
- Ask HN: What are you working on? (May 2026)
- Ask HN: Who is hiring? (June 2026)
- Ask HN: Who is hiring? (March 2026)
- Ask HN: Who wants to be hired? (June 2026)
- Ask HN: Why hasn't there been a real competitor to Ticketmaster yet?
- Ask HN: Why is the HN crowd so anti-AI?
- Ask HN: Will programmers write more efficient code during the memory shortage?
- Ask.com has closed
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- Astro 7.0
- Astronomers Find the Edge of the Milky Way
- Astronomers find the edge of the Milky Way
- Astrophysicists Puzzle over Webb’s New Universe
- Async Programming Is Just Inject Time
- Async Rust never left the MVP state
- At Protocol: Building the Social Internet
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- At long last, InfoWars is ours
- Atlassian Enables Default Data Collection to Train AI
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- Atlassian to cut roughly 1,600 jobs in pivot to AI
- Atomic Display Switching: Solving
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- Before GitHub
- Behavior-Oriented Concurrency for Python
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- Bible as RAG Database
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- Block the “Upgrade to Tahoe” Alerts
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- Building an Open-Source Robot Vacuum – Meet Oomwoo
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- Building from zero after addiction, prison, and a felony
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- Bun has an open PR adding shared-memory threads to JavaScriptCore
- Bun is being ported from Zig to Rust
- Bun's unreleased Rust port has 13,365 unsafe blocks
- Bun: cgroup-aware AvailableParallelism / HardwareConcurrency on Linux
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- Burnout is real for open source maintainers
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- C++: The Documentary
- C, Just In Time!
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- CBP Directive 3340-049B: Border Search of Electronic Devices
- CBP updated its electronic device search directive in Jan 2026
- CC-Canary: Detect early signs of regressions in Claude Code
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- CEOs Who Think AI Replaces Their Employees Are Just Bad CEOs
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- CERN to host a new phase of Open Research Europe
- CERN uses tiny AI models burned into silicon for real-time LHC data filtering
- CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq
- CISA Admin Leaked AWS GovCloud Keys on GitHub
- CODA: Rewriting Transformer Blocks as GEMM-Epilogue Programs
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- CVE-2026-28952: Apple macOS 26.5 Kernel Vuln found by Claude
- CVE-2026-31431: Copy Fail vs. rootless containers
- CVE-2026-3888: Important Snap Flaw Enables Local Privilege Escalation to Root
- CVE-Bench: testing LLM agents on real-world vulnerability patches
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- Can Claude Fly a Plane?
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- Can we have the day off?
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- Can you stop beans from making you gassy?
- Can't Stop the Signal. Poison It
- Canada is looking to build up to 10 new nuclear reactors over the next 15 years
- Canada plans 'nuclear renaissance' with up to 10 reactors built by 2040
- Canada to order military plane fleet from Sweden in shift from US suppliers
- Canada's bill C-22 mandates mass metadata surveillance
- Canada's bill C-22 mandates mass metadata surveillance of Canadians
- Canada’s Bill C-22 Is a Repackaged Version of Last Year’s Surveillance Nightmare
- Cancel ChatGPT AI boycott surges after OpenAI pentagon military deal
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- Cannabinoids remove plaque-forming Alzheimer's proteins from brain cells (2016)
- Cannibalism
- Canonical Under Attack
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- Capability-Based Security for Redox: Namespace and CWD as Capabilities
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- Capstone – multi-platform, multi-architecture disassembly framework
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- Carrot Disclosure: Forgejo
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- Celebrating Tony Hoare's mark on computer science
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- Changing How We Develop Ladybird
- Chaos and Dystopian news for the dead internet survivors
- Chaosnet
- Chaosnet (1981)
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- ChatGPT Work
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- Chest Fridge (2009)
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- Chibil: A C compiler targeting .NET IL
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- Childhood Computing
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- Chimpanzees in Uganda locked in vicious 'civil war', say researchers
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- Chuwi Minibook X
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- Claude Brain
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- Clojurists Together – Q2 2026 Open Source Funding Announcement
- Closure of the Weatheradio Service in Canada
- Closure of the Weatheradio service in Canada
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- Cloud VM benchmarks 2026
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- Cloudflare Flagship
- Cloudflare crawl endpoint
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- Cloudflare launched self-managed OAuth for all
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- Codex for almost everything
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- Codex logging bug may write TBs to local SSDs
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- Codex-maxxing
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- Cognitive Debt: When Velocity Exceeds Comprehension
- Cohere Transcribe: Speech Recognition
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- Colonization of Venus
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- Colored Shadow Penumbra
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- Communication on European Tech Sovereignty, and an EU Open-Source Strategy
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- Composition Shouldn't be this Hard
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- Computational Physics (2nd Edition)
- Computer Hobby Movement in Canada
- Computer Use is 45x more expensive than structured APIs
- Computer chip material inspired by the human brain could slash AI energy use
- Computer use in Gemini 3.5 Flash
- Computer-Aided Language Development in Nonspeaking Children (1968) [pdf]
- Computer-generated dream world: Virtual reality for a 286 processor
- Computex 2026: Are We Heading for the Agentic PC Era Yet?
- Confidential submission of draft S-1 to the SEC
- Config Files That Run Code: Supply Chain Security Blindspot
- Connecticut and the 1 Kilometer Effect
- Connections in Math: the two kinds of random
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- Constraint Decay: The Fragility of LLM Agents in Back End Code Generation
- Context Sculpting
- Contextual commits – An open standard for capturing the why in Git history
- Converge (YC S23) Is Hiring a Founding Platform Engineer (NYC, Onsite)
- Conway's Game of Life, in real life
- Cook: A simple CLI for orchestrating Claude Code
- Copilot edited an ad into my PR
- Copy Fail – CVE-2026-31431
- Copy That Floppy – Cambridge guide for preserving data from fragile floppy disks
- CopyFail was not disclosed to Gentoo developer
- Core PPI up 9.6% annualized (0.8% MoM) in May
- Corgi Labs (YC W23) Is Hiring
- Corporate America Is Starting to Ration AI as Cost Skyrockets
- Correlated randomness in Slay the Spire 2
- Corruption erodes social trust more in democracies than in autocracies
- Cosmodial Sky Atlas
- Cosmology with Geometry Nodes
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- Costco is the anti-Amazon
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- Country that put backdoors in Cisco routers to spy on world bans foreign routers
- Coursera and Udemy are now one company
- Court Records Should Be Free
- Cpp2Rust: Translates C++ to safe Rust automatically
- Craig Venter has died
- Craig Venter of Human Genome Project Dies at 79
- Create an MP4 video of a web page scrolling at a steady speed
- Create value for others and don’t worry about the returns
- Creatine raise brain energy levels and slow Alzheimer's cognitive decline by 30%
- Credit cards are vulnerable to brute force kind attacks
- Croatia declared free of landmines after 31 years
- Cronboard: A terminal-based dashboard for managing cron jobs
- Cross-Model Void Convergence: GPT-5.2 and Claude Opus 4.6 Deterministic Silence
- Crypto firms have spent $189M so far on 2026 US election, report says
- Crypto in 2026: Oh, This Is the Bad Place
- Crystal Nights (2008)
- Curl will not accept vulnerability reports during July 2026
- Cursing the government does not fix potholes. Spray-painting them does
- Cursor 3
- Cursor Composer 2 is just Kimi K2.5 with RL
- CursorBench 3.1
- Customer Update on Simplenote
- Cutting inference cold starts by 40x with LP, FUSE, C/R, and CUDA-checkpoint
- Cyber.mil serving file downloads using TLS certificate which expired 3 days ago
- Cyberattack on vehicle breathalyzer company leaves drivers stranded in the US
- DARPA Heavy Life Challenge
- DARPA's new X-76 Experimental Plane
- DHS Contracts Explorer – Hacked data from the Office of Industry Partnership
- DHS Quits Granting Green Cards–Almost
- DIY Soft Drinks
- DLL that was not present in memory despite not being formally unloaded
- DMCA-resistant Claude Code source code
- DNI Gabbard Reveals Evidence of U.S. Taxpayer-Funded Global Biolab Program
- DNSGlobe – Rust TUI to watch DNS propagate around the world
- DOJ confirms FBI Director Kash Patel's personal email was hacked
- DOS Memory Management
- DOS Zone
- DRAM pricing is killing the hobbyist SBC market
- DSpark: Speculative decoding accelerates LLM inference [pdf]
- DaVinci Resolve releases Photo Editor
- Dad brains: How fatherhood rewires the male mind
- Daily Driving GrapheneOS
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- Dalus (YC W25) Is Hiring a Senior Software Engineer in Germany
- Dan Simmons, author of Hyperion, Song of Kali, dead at 77
- Dan Simmons, author of Hyperion, has died
- Danish Gov agency to ditch Microsoft software in push for digital independence
- Danish government agency to ditch Microsoft software (2025)
- Danish pension fund excludes SpaceX citing governance and valuation
- Danish privacy activist Lars Andersen raided by police
- Dario Amodei calls OpenAI’s messaging around military deal ‘straight up lies’
- Dark Castle
- Darkbloom – Private inference on idle Macs
- Data Has Weight but Only on SSDs