Covely

After years of managing my finances across various cloud-based apps, I grew tired of two things: unnecessary subscriptions and the constant uncertainty about where my data was stored. As an engineer, I knew I could build something better — something that offered speed, complete data ownership, and a UI that didn’t feel like a 2010 spreadsheet.

That was the birth of Covely.

The “Why” Behind the Build
I wanted a tool that prioritized privacy above all else. For me, this project is rooted in the concept of digital sovereignty — the right to own and control the data that defines our financial lives. I realized that by relying on third-party cloud platforms, I was effectively renting my own financial history. I needed a “local-first” environment where I could track my net worth, investments, and expenses while ensuring that my sensitive information never leaves my machine.

Tauri vs. Electron: Choosing My Foundation
When I started, the debate between Electron and Tauri was central to my architecture decisions. Electron is the industry standard, but it often carries a heavy memory and disk footprint because it bundles an entire Chromium instance. For a finance tool that needs to be fast and lightweight, that wasn’t ideal. I chose Tauri because it leverages the OS’s native webview, drastically reducing binary size and resource consumption. The tradeoff in managing Rust-based system calls was a small price to pay for the snappy, native utility feel I wanted for my users.

Precision in Every Transaction
When your app is handling personal finances, “close enough” is not acceptable. A major part of my development journey involved refining the core transaction logic — specifically ensuring that balance calculations and transfer logic across accounts remain 100% accurate.

To achieve this, I implemented an extensive suite of unit tests, covering edge cases in transfers, currency handling, and balance reconciliation. I complemented this by grueling manual testing, simulating every possible user error I could think of to ensure the integrity of the data. Knowing that the math holds up — regardless of how complex the transaction — is what gives me the confidence to use Covely as my primary financial tool.

The Rest of the Stack

Vue.js: My framework of choice for its reactive architecture and ease of development.

SQLite: A simple, rock-solid way to store local financial data that provides me with total control over my backups.

What I Learned
Building a desktop app taught me to respect the file system in ways that web-only development never did. I had to solve unique challenges regarding data migration, cross-platform persistence, and security — challenges that ultimately reinforced my belief that true digital autonomy requires the right architecture.

What’s Next
Covely isn’t a finished product; it’s a living project. I’m currently focused on refining investment tracking and AI-assisted categorization. If you’re a developer or a privacy enthusiast, I’d love for you to check it out and let me know how you manage your own financial data.