# Sparkfield > Projects and companies by JeremyBuildsNow. Projects, companies, and ideas taking shape. I’m JeremyBuildsNow — exploring the space where hardware meets software, one build at a time. ## Builder Aspiring electrical engineer and software developer. Exploring the connections between hardware, software, and the things they make possible. Interests: Electrical engineering, Software development ## Pages - https://sparkfield.co.ke/projects - https://sparkfield.co.ke/companies - https://sparkfield.co.ke/builder ## Work - [Jenga](https://sparkfield.co.ke/work/jenga): An open-source electronics workspace. Draw the circuit, shape the board, and bring it into 3D. Main website: https://jenga.sparkfield.co.ke/ - [Downloads](https://jenga.sparkfield.co.ke/#downloads) - [Releases](https://github.com/JeremyKariukicodesnow/Jenga/releases) - [Source on GitHub](https://github.com/JeremyKariukicodesnow/Jenga) - 2026-10-17: Jenga is ready for download — The electronics workspace is available for Windows. Explore schematic design, PCB layout, and 3D assemblies, or connect an AI assistant through MCP and CLI. Start with the download page and follow releases for updates. - [Umber](https://sparkfield.co.ke/work/umber): Hardware payment infrastructure, built with affordability in mind. Coming soon. Main website: https://www.umber.co.ke/ - [The vision](https://www.umber.co.ke/#vision) - [Meet the team](https://www.umber.co.ke/#team) - 2026-10-17: Hardware payment infrastructure — coming soon — Umber is working on payment hardware for financial providers in Kenya. The product line is in development, with affordability guiding the work. Explore the vision and follow along as the hardware takes shape. ## Public profiles - https://x.com/JeremyBuildsNow - https://www.linkedin.com/in/jeremy-kariuki-894b8b36b - https://github.com/JeremyKariukicodesnow ## Discovery - Sitemap: https://sparkfield.co.ke/sitemap.xml