
Matrix.org
Element.io
Signal
Telegram
Revolt.chat
Rocket.Chat
Mattermost
Discord
Code Arcade
CodinGame
hackattic
Daily Coding Problem
Frontloops
Code Racer
Real Dev
Codewars
Matrix.org
Code ArcadeMatrix.org is recommended for individuals and organizations that prioritize privacy and security in their communications. It's ideal for tech-savvy users who value open-source solutions and those who seek to avoid centralized communication platforms. Additionally, it's suitable for developers looking to build custom communication solutions using a versatile protocol.
Based on our record, Matrix.org seems to be a lot more popular than Code Arcade. While we know about 597 links to Matrix.org, we've tracked only 4 mentions of Code Arcade. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Technical implementation should include privacy controls as core features, not afterthoughts. Build data export functionality, implement secure deletion processes, and provide transparency reports showing what data you've collected and shared. Open-source privacy tools like Tor and Matrix provide excellent examples of privacy-first architecture design. - Source: dev.to / 4 months ago
Matrix is an open, decentralized communication protocol for real-time messaging, voice, and video. Synapse is the reference homeserver implementation -- the software you run to participate in the Matrix network. Think of it like email: you run your own server, but you can communicate with anyone on any other Matrix server worldwide. - Source: dev.to / 4 months ago
Matrix is the decentralized Slack of the future (or present really!). - Source: dev.to / 5 months ago
/me sighs; Merry Christmas everyone. For what it's worth, we've been working on improving Matrix's metadata footprint this year: MSC4362 (https://github.com/matrix-org/matrix-spec-proposals/blob/kaylendog/msc/simplified-encrypted-state/proposals/4362-simplified-encrypted-state.md) got implemented on matrix-js-sdk for encrypting room state (currently behind a labs flag on Element Web). Meanwhile more radical... - Source: Hacker News / 7 months ago
I think most of these are built using Matrix: https://matrix.org. They have connections with most providers like iMessage, FB, Instagram, etc. - Source: Hacker News / 10 months ago
You can practice your code solving skills here: Https://app.codesignal.com/arcade Https://leetcode.com/problemset/all/. Source: about 3 years ago
CodeSignal's Arcade (signup required) has a lot of practice problems at different levels that can help break you out of the mindset of copying tutorial code. Source: over 4 years ago
I like the Databases section of CodeSignal Arcade. Problems increase in difficulty, plus I've found it's the platform a lot of companies use for SQL assessment so you'll get a good sense of the type of questions to expect. Source: over 4 years ago
Codesignal has a good set of SQL questions. Not sure they "support" Postgres, but there's 84 free levels under the Arcade section. https://app.codesignal.com/arcade. Source: over 4 years ago
Element.io - Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
CodinGame - CodinGame provides users with a fun and effective way to learn coding that eschews the rigid structure of traditional teaching methods.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
hackattic - No nonsense, real world programming challenges
Telegram - Telegram is a messaging app with a focus on speed and security. Itโs superfast, simple and free.
Daily Coding Problem - Get exceptionally good at coding interviews