System Architecture

A list of key concepts for building and testing reliable distributed systems, with basic definitions and deep references.

What is NNCP? NNCP lets you securely send files, or request remote execution, between systems. It uses asynchronous communication, so the source and destination need never be online simultaneously. NNCP can route requests via intermediate devices – other NNCP nodes, USB sticks, tapes, radios, phones, cloud services, whatever – leading to a network that is highly resilient and flexible. NNCP makes it much easier to communicate with devices that lack Internet connectivity, or have poor Internet.

A developer podcast host recently said they only use AI for autocomplete. This shocked me. That’s two generations behind today’s state of the art. This is how the field is evolving:

make little apps for you and your friends

I've been toying with the idea of using OAuth2/OpenID and the C2S API to have a service act on behalf of another instance (e.g. act on Lemmy, post as Mastodo...

So, Richard McManus asked me about how ActivityPub supports cross-server usage. As an example use case, let’s say a user with the account eric@social.example wants to comment on a photo by di…

The moving image below is only 49Kb and has an incredibly high resolution. It's similar to a GIF but instead of showing moving images, it shows moving SVGs!

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3D Immersive collaboration is your virtual place for real work. Immersive yourself and your team in a engaging and memorable 3d environment.

Purdue Model

The future of IoT connectivity.

Deno features improved security, performance, and developer experience compared to its predecessor. It's a great time to upgrade your Node.js project to run on Deno.

A verifiable credential is a specific way to express a set of claims made by an issuer, such as a driver's license or an education certificate. This specification describes the extensible data model for verifiable credentials, how they can be secured from tampering, and a three-party ecosystem for the exchange of these credentials that is composed of issuers, holders, and verifiers. This document also covers a variety of security, privacy, internationalization, and accessibility considerations for ecosystems that use the technologies described in this specification.

What is 'Authorization'? Discover how to master this HTTP header, with free examples and code snippets.

What is 'HTTP Authentication'? Discover how to master HTTP Authentication, with free examples and code snippets.

1 History #December 2020, Version 0.9.0Added x-large and xx-large thumbnail sizesMay 2012, Version 0.8.0Modified to respect the XDG Base Directory Specification (http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html)September 2004, Version 0.7.0Added readonly support for shared thum…

W3C recently published specifications will build foundations for new ways to represent identity on the web. Verifiable Credentials 2.0 and the first draft of Digital Credentials API enable the secure, seamless exchange of digital credentials on the web, emphasizing flexibility, emerging cryptography, compliance with regulation, and W3C principles related to privacy and security. All of these topics will be on the agenda of the Global Digital Collaboration, co-organized by W3C.