• Privacy Guides: trustworthy recommendations
• Surveillance Self-Defense: guides including security scenarios

Operating Systems

• Graphene OS: a reasonable secure mobile operating system
• Tails OS: amnesic operating system
• NixOS: declarative operating system
• Qubes OS: a reasonably secure operating system
• Spectrum OS: a reasonably secure & declarative operating system

Messaging

• Signal & Molly: secure messaging
• Matrix: decentralised messaging

Online Presence

• Mastodon: decentralised social media
• WriteFreely: the software powering this blog

Password Management

• Vaultwarden & Bitwarden: password management
• Yubico: hardware passkeys

Self-hostable Cloud Services

• Ente Photos: e2e photos cloud
• Nextcloud: file cloud
• Navidrome: music streaming
• Vikunja: todo management
• Radicale: CalDAV & CardDAV server

Privacy

• Tor Browser: private browsing
• Mullvad VPN: trustworthy vpn
• Obscura VPN: another trustworthy vpn
• Monero: private crypto

Research

• Emacs: operating system that can be used to manipulate text
• Org-mode: markdown on steroids
• Zotero: citation management