Overview

Long-time Linux user turned Proton adopter here. After switching from Linux to Windows for reliability reasons, I found myself drawn into the Proton ecosystem (currently on Unlimited + Lumo). The foundation is solid—but there are gaps preventing it from being a true all-in-one private workspace.

Three priorities follow, ordered by immediate need to long-term vision.

1. Immediate Need: Encrypted To-Do List / Task Manager

The Gap: Proton has Mail, Calendar, Drive, Docs, Sheets, Pass, Authenticator, VPN, and Lumo. But there's no native task manager or simple checklist app.

Why It Matters:
- Users resort to third-party apps (Apple Reminders, Google Tasks, etc.) that break the privacy chain
- Shopping lists, quick notes, and daily tasks lack a secure home within the Proton ecosystem
- Calendar alone isn't enough—not everything is time-bound, and quick capture needs a simpler interface

Suggested Implementation:
- Simple encrypted checklist app with categories (Shopping, Errands, Personal, Work)
- Syncs across all devices via Proton account
- Optional: calendar integration for deadline reminders
- Lightweight—doesn't need complex project management, just clean, fast checklists

Competitive Context: Apple Reminders, Google Tasks, Microsoft To Do all exist as standalone or integrated features. Privacy-first alternatives are rare.

2. Medium Priority: Deeper Lumo Integration Across Proton Apps

The Current State: Lumo exists as a relatively isolated assistant. You can use Drive documents with it (thanks to the SDK), but the integration feels like two separate products.

Desired Integration Points:
- Proton Mail: Lumo-assisted email drafting, thread summarization, priority inbox suggestions—all without data leaving the encrypted environment
- Proton Docs/Sheets: In-editor Lumo assistance for writing, restructuring, formatting, research integration
- Proton Calendar: Meeting preparation summaries pulled from relevant emails and notes
- Proton Pass: Password-related assistance (generation, security auditing, breach alerts explained naturally)

Why It Matters:
- Creates genuine workflow cohesion rather than siloed functionality
- Competes with Google's AI-saturated workspace while respecting privacy
- Makes the Lumo bundle feel like a unified suite, not an add-on

Technical Note: The Drive SDK infrastructure exists—this is largely an integration and UX challenge now.

3. Long-Term Vision: Obsidian-Style Connected Knowledge Base

The Dream: An encrypted, locally-first markdown knowledge base fully integrated with the entire Proton ecosystem.

Core Features:
- Local-first markdown editor with end-to-end encryption
- Bi-directional linking between notes
- Integration with:
- Email: Save message threads as notes, link relevant correspondence
- Calendar: Auto-create meeting notes, surface prep material from previous interactions
- Tasks: Convert notes into actionable items, link tasks to reference material
- Lumo: Index knowledge base for context-aware assistance, surface connections between ideas, summarize across documents

Why It Matters:
- Creators, researchers, and professionals need a secure place to accumulate and connect knowledge
- Existing options (Obsidian, Logseq) lack ecosystem integration and native encryption
- Proton could fill this gap uniquely—combining local-first philosophy with encrypted cloud sync and AI assistance

This Isn't Just a Feature—It's a Platform: A connected workspace where ideas, tasks, communications, and time all interoperate without compromising privacy.

Closing Thought

Proton's mission is privacy by default, not as an afterthought. These features extend that mission into everyday productivity—areas where Big Tech currently dominates with surveillance-driven models. A private to-do list is boring until you realize how much of your life those checklists reveal. Private AI assistance matters when your emails and documents stay yours, not training data.

The infrastructure is here. The demand is clear. The question is: will Proton build the rest of the house?

Thank you for considering this feedback. As someone who switched ecosystems hoping for better, I'm invested in seeing Proton succeed.