Kanji Dojo
Learn & practice writing Japanese characters

Kanji Dojo is a convenient and effective tool for memorization of Japanese characters. With it you can learn how to write Japanese characters, memorize the correct stroke order, practice recalling meanings and readings of kana and kanji using flashcards with vocabulary examples. Keep studying anywhere, anytime without wasting tons of paper

With Spaced Repetition System in place, you'll be able to lean and retain information efficiently by reviewing things you've learned every day or as you see fit. Setup daily limit to avoid being overwhelmed and adjust it as you go. Enable daily notification reminder in the application's settings to stay consistent and keep your memorized information retained

Download: https://github.com/syt0r/Kanji-Dojo?tab=readme-ov-file#windows--linux

Source code: https://github.com/syt0r/Kanji-Dojo

#opensource

@foss_desktop

Proton Wallet

A self-custodial Bitcoin wallet for mobile and web, built with end-to-end encryption.

Features:
● Self-custody with BIP39 seed phrase (compatible with other wallets)
● End-to-end encryption for wallet data and keys
● No trackers or ads
● Multi-device support (mobile + web)
● BTC transactions only (no altcoins)
● Send Bitcoin to other users via verified email
● Built-in address rotation for privacy
● Support for multiple wallets and accounts
● Open source and available for free

Download: https://proton.me/wallet/download

#Android #Bitcoin #Wallet #Crypto

FOSS Lovers 💬🐧

A friendly space to talk about everything Free, Libre, and Open Source Software — from apps to operating systems, and everything in between.

💬 Join the discussion: https://t.me/foss_Discussion

✳️ Matrix[Element]: https://matrix.to/#/#foss_discussion:matrix.org
🐘 Mastodon: https://mstdn.social/@foss_android
🎧 Discord: https://discord.gg/s6BbPnvddh

📢 Our channels:
@FOSS_Android | @FOSS_Desktop | @FOSS_iOS

@foss_desktop

Element
A fast, secure, and privacy-focused messenger built on the open Matrix network.

Element lets you stay connected with friends, family, and communities — all while keeping control of your data.

Features:
• Real-time messaging & video calls
• Public and private group chats
• Reactions, polls, pinned messages & more
• Video calling while browsing messages
• Works with other Matrix apps (FluffyChat, Cinny, etc.)
• Open source and ad-free

Privacy-first: No tracking, no data mining — your conversations are yours.

Own your data:
Host on Matrix.org or your own server for full control.

Download: https://element.io/app

Source code: https://github.com/element-hq/element-desktop

#messaging #Matrix

Our Mastodon account just passed 5K followers! 🎉

Big thanks to everyone who’s been part of it and keeps the FOSS spirit going strong 💚

Join us there if you haven’t yet 👇
https://mstdn.social/@foss_android

We’ll keep curating hand-picked FOSS apps that respect your privacy and freedom 💚

@foss_Android

Browser OS
The Open Source Agentic Browser

BrowserOS is an AI-powered browser that turns your words into actions.
Just describe your task — it clicks, types, and navigates for you.

● Open-source Chromium fork
● Privacy-first alternative to ChatGPT Atlas, Perplexity Comet & Dia
● Use your own API keys or local models (Ollama) — your data stays on your device
● Works with all Chrome extensions
● AI agents run locally, not in the cloud
● Community-driven & transparent
● Can act as an MCP server for Claude Code or Gemini CLI
● Built-in AI ad blocker coming soon!

Download: www.browseros.com

@foss_Desktop

DuckRun
A simple FOSS game 🦆

DuckRun is a fun, open-source game inspired by the Chrome dino game.
Help a hopping duck collect coins, then use them to buy hats or shoes in the shop.

• Simple gameplay
• Lightweight and offline-friendly
• No ads, no tracking
• Free and open source

Download: https://flathub.org/en/apps/de.informationsanarchistik.teapot.megamichi.duckrun

Source code: https://teapot.informationsanarchistik.de/Megamichi/DuckRun

#FOSS #linux #OpenSource #Game

OneKey
Crypto DeFi Wallet

OneKey is an open-source, self-custody crypto wallet designed to help users hold their own keys and manage digital assets securely.
• Self-custody wallet (HYOK — hold your own key)
• Supports multiple chains: Bitcoin, Lightning, Ethereum, Solana, Doge, Tron & many EVM networks
• Multiple wallets & accounts to isolate risks
• Built-in swap with optimized pricing
• Watch-only addresses for tracking wallets
• Account history overview
• Optional OneKey hardware wallet support

Download: https://onekey.so/download

Source: https://github.com/OneKeyHQ/app-monorepo

#Crypto #Wallet #Privacy #SelfCustody

Komi Store
Open-Source App Store

Discover and install apps directly from GitHub, Codeberg, Forgejo, Gitea, and other self-hosted forges.

• Browse trending and popular releases
• One-click installation from supported repositories
• Track installed apps and receive update notifications
• Supports GitHub, Codeberg, Forgejo, Gitea & self-hosted instances
• Material You design with light, dark & AMOLED themes
• Available for Android, Windows, macOS & Linux

Built with Kotlin Multiplatform and Compose Multiplatform.

Download: https://komistore.app/download/

Source code: https://github.com/kurikomi-labs/komi-store

#OpenSource #GitHub

@foss_desktop

Volunteers Needed 📢

We’re looking for a few people who can help post and share FOSS content in our channels:
@FOSS_Android | @FOSS_Desktop | @FOSS_iOS

Active community members may be selected directly. We’re also open to others who have the skills and interest to create good-quality posts.

Interested in getting posting permissions? Message @Shptech_bot.

Feedback and suggestions are welcome too.