Resources

Educational resources and open licenses

Recommended software

I rely on free software every day. Described below are the services and tools I use most often.

Bitwarden: Self-hostable password manager
Licensing: GNU Affero General Public License v3.0
Could replace 1Password, Dashlane, and LastPass

Cryptomator: Client-side file encryption solution that works well with cloud storage
Licensing: GNU General Public License v3.0
Could replace Boxcryptor

Firefly III: Self-hosted personal finance manager
Licensing: GNU Affero General Public License v3.0
Could replace Mint and YNAB, albeit with a “fundamentally different” philosophy

FreshRSS: Self-hosted news aggregator
Licensing: GNU Affero General Public License v3.0
Could replace Feedly and Inoreader

GnuPG: Used by Keyoxide’s decentralized identity verification and mailbox.org’s encrypted inbox, “GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880”
Licensing: GNU General Public License v2.0 or later
See also Git’s “Signing Your Work” and Keyoxide

Joplin: Note-taking and task management application with encryption and synchronization
Licensing: MIT (Expat) License
Could replace Google Keep and Microsoft OneNote

linkding: Simple bookmark tool that can automatically save bookmarked pages to the Internet Archive’s Wayback Machine
Licensing: MIT (Expat) License
See also ArchiveBox

mailbox.org: Secure mail service provider
Licensing: Based on Open-Xchange, Postfix, and other free software
Could replace Gmail and Outlook

Mozilla Firefox and Mozilla Thunderbird: Web browser (desktop and mobile) and email client that can also manage contacts, calendars, and feeds (desktop)
Licensing: Mozilla Public License 2.0
Firefox could replace Microsoft Edge, Google Chrome, etc. while Thunderbird could replace eM Client, Mailbird, and Microsoft Outlook. See FairEmail for a mobile email client

Nextcloud: Self-hosted cloud storage and content collaboration platform
Licensing: GNU Affero General Public License v3.0 or later (server)
Could replace Google Drive and Microsoft 365 – CalDAV and CardDAV support also allow for synchronization of calendars and contacts, respectively

NocoDB: No-code database
Licensing: GNU Affero General Public License v3.0 or later
Could replace Airtable

ntfy: Self-hostable HTTP-based push notification service
Licensing: Apache License 2.0 and GNU General Public License v2.0
See also Gotify

Rclone: Cloud storage management tool (e.g., move files between different servers)
Licensing: MIT (Expat) License
Could replace a supported provider’s synchronization software (e.g., Google Drive or Microsoft OneDrive)

Shiori: Self-hosted read-it-later application
Licensing: MIT (Expat) License
Could replace Instapaper and Pocket. See also wallabag, which I used until early December 2022

Signal: Secure instant messaging
Licensing: GNU Affero General Public License v3.0 (server, desktop) and GNU General Public License v3.0 (mobile)
Could replace text messages (SMS/MMS), Facebook Messenger, Telegram, and WhatsApp

SilverBullet: Self-hosted note-taking application with end-user programming features
Licensing: MIT (Expat) License
See also Logseq

Syncthing: Continuous file synchronization program
Licensing: Mozilla Public License 2.0
See also Syncthing-Fork (Android) and SyncTrayzor (Windows)