Hi there, I'm Walter 👋

I'm into Data Visualization since 2003. Since 2017, I'm working as a UI developer at Elastic, contributing to various parts of Kibana including Elastic Charts. Before that I spend almost a decade working on visual social media analysis tools. More about me →

🚀 Open Source Projects

• d3-milestones - A d3 based timeline visualization library, my most popular personal OSS project with 196 stars
  • kibana-milestones-vis - Kibana plugin integration for d3-milestones
  • react-milestones-vis - React component wrapper for d3-milestones
• eddo - A todo app with GTD heritage for developers and their AI coding agent.
• doc2convo - Convert text documents into conversational audio files
• node-html2img-render-server - A server for converting HTML to images with Playwright
• node-es-transformer - nodejs based (re)index and data transformation library for Elasticsearch
• atproto2elasticsearch - Real-time pipeline streaming AT Protocol (Bluesky) firehose to Elasticsearch
• jupyter2kibana - A Workflow for Data Scientists to bring Jupyter Notebook Visualizations to Kibana Dashboards
• COVID-19 Austria Visualizations - Automated data visualization for transparent COVID-19 reporting
• agent-tools - Collections of helpers for agentic coding workflows
• astro-photostream - AstroJS photo stream integration with EXIF processing and geolocation handling
• x2masto - Collect X following data and generate Mastodon import candidates
• bsky2masto - Find followable Mastodon/Fediverse accounts from people you follow on Bluesky
• shc2es - CLI tools to collect, store, and visualize Bosch Smart Home Controller II data with Elasticsearch and Kibana

Open Source Contributions

• I run my blog using AstroJS and started contributing to its Cactus theme.
• Created the Elasticsearch data loader example for Observable Framework.