Daniel Jancar is a project manager and software developer from Lucerne, Switzerland, who builds apps, organises events and takes photos.https://danieljancar.dev/https://danieljancar.dev/blog/developing-a-mobile-app-from-scratch-with-expo/https://danieljancar.dev/blog/developing-a-mobile-app-from-scratch-with-expo/In this post, I'm sharing my experience of developing a mobile app from scratch and end-to-end - from the initial idea, to the software architecture, the CI/CD strategy and the submission to the app stores.Fri, 05 Jun 2026 00:00:00 GMTexporeact-nativemobile-developmentresendsupabasehttps://danieljancar.dev/blog/teaching-scratch-in-elbasan-2025/https://danieljancar.dev/blog/teaching-scratch-in-elbasan-2025/I joined iStep for a volunteer week in Elbasan, Albania, teaching kids and teenagers their first taste of programming with Scratch. Here is what stayed with me.Wed, 09 Apr 2025 00:00:00 GMTiStepScratchElbasanVolunteeringCodingForKidshttps://danieljancar.dev/blog/winning-stellar-dev-challenge-award/https://danieljancar.dev/blog/winning-stellar-dev-challenge-award/What started as a lunchtime idea became VoteVault, our voting app on Stellar. The short video tutorial we made on the side is what ended up winning the Vivid Video Award.Fri, 30 Aug 2024 00:00:00 GMTstellarblockchainvotevaulttutorialawardhttps://danieljancar.dev/blog/husky-perfect-git-hook-to-reduce-refactoring-efforts/https://danieljancar.dev/blog/husky-perfect-git-hook-to-reduce-refactoring-efforts/Husky is a great tool to add git hooks to your project. I will show you how to set it up and how it can reduce refactoring efforts.Wed, 21 Feb 2024 00:00:00 GMThuskygit-hookshttps://danieljancar.dev/blog/how-to-use-prettier-as-a-github-action/https://danieljancar.dev/blog/how-to-use-prettier-as-a-github-action/Prettier is a great tool to format your code. In this article, I will show you how to use Prettier as a Github Action.Thu, 04 Jan 2024 00:00:00 GMTprettiergithub-actions