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2025

Crypto Security and Android Development: Building an Offline Secrets Manager with Kivy

I built a secure, offline secrets manager for Android using Kivy and Buildozer, avoiding Java/Kotlin while ensuring strong encryption. Inspired by Piggydb, I designed the app to let users encrypt and export their data securely, making it portable across devices. Along the way, I tackled challenges like third-party package compatibility, encryption implementation, and database selection to create a reliable and privacy-focused solution.

Turning My SailfishOS Phone into a WiFi Hotspot with VPN Sharing

This blog post explains how I turned my SailfishOS phone into a WiFi hotspot that shares its internet and even a VPN connection with other devices. I go over how wpa_supplicant manages WiFi, how I set up a second WiFi interface, and how I built a custom DHCP server to assign IP addresses. In the end, I not only got my hotspot working but also discovered a way to route VPN traffic through it, making it even more useful for remote work and travel.

  • in python
  • 4 min read

Setting Up Buildozer for Kivy 2.3.0 with Docker: A Guide for New Users

In my free time, I explored using Kivy to create mobile applications. However, the current state of Kivy's tooling, specifically Buildozer, presents significant challenges for beginners. Buildozer relies on legacy dependencies and specific tools, which makes it incompatible with modern systems like Ubuntu 24.04 (as of December 2024). This guide aims to resolve that challenge by leveraging Docker to streamline the Buildozer setup process. We’ll use a modern Docker image containing a pre-configured version of Buildozer and walk through the steps to compile your Kivy app into an Android .apk file.