Alexander Reelsen
Blog
- 2025
- Programming an Elgato Streamdeck with Java - Part 3
- Programming an Elgato Streamdeck with Java - Part 2
- Programming an Elgato Streamdeck with Java - Part 1
- Shorts: Rolling up s3 logs using Bun
- Shorts: Converting & compressing a CSV file
- 2024
- Tracking my meeting time with Hammerspoon
- Node process permissions: An introduction
- 2023
- Indexing german Wikipedia articles for fun and vector search
- Goodbye DevRel… (for now)
- A year of solar & power monitoring using Jupyter and DuckDB
- Create a custom Tailwind CSS build with Gradle in your Java project (2023 edition)
- The ultimate workshop-as-code approach
- Using Hammerspoon to enable lighting for meetings
- Mirror, mirror, what am I typing next? All about search suggestions
- 2022
- The new generation of data stores
- My interview questions for developer advocates
- Using Terraform with Elastic Cloud
- Using Spring Boot with Elastic App Search
- ElasticCC platform - Part 3 - Upgrading on k8s without downtime
- ElasticCC platform - Part 2 - Using the new Elasticsearch Java Client
- ElasticCC platform - Part 1 - Application structure
- Running Elasticsearch 8.0 with Testcontainers
- 2021
- Using Elasticsearch Transforms For Product Recommendations
- GitHub Actions: Updating a GitHub wiki after an edit
- Understanding the Elasticsearch Percolate Query
- Monitoring Certificate Transparency Logs Using the Elastic Stack
- Using German Highway API Data with Kibana Maps
- Using Testcontainers To Test Elasticsearch Plugins
- Indexing Data From Unix Domain Sockets Into The Elastic Stack
- Writing a plugin for the Elastic APM Java Agent
- Do Cross The Streams - Elasticsearch Data Streams Explained
- Implementing phonetic search with Elasticsearch
- Awesome Visualizations with Kibana & Vega
- Using Filebeat To Ingest DigitalOcean App Platform Logs
- Understanding Elasticsearch combined fields and multi match queries
- Visualizing German Vaccination Data Using Kibana Lens & TSVB
- Understanding Elasticsearch Persistent Tasks
- Using the common grams filter for faster queries
- Search hierarchies using the path hierarchy tokenizer
- Create a custom Tailwind CSS build with Gradle in your Java project
- 2020
- Running a Serverless Lucene Reverse Geocoder
- On feedback - my personal primer to improve feedback
- Using the built-in Java HTTP client to query Elasticsearch
- Using Hammerspoon to enable DnD when screen sharing via Zoom
- Handling JDK & GC options dynamically in Elasticsearch
- Using seccomp - Making your applications more secure
- Search engines & libraries: an overview
- Introduction into Spring Data Elasticsearch
- Implementing a modern E-Commerce Search
- Implementing a Linkedin like search as you type with Elasticsearch
- Testing and Releasing Elasticsearch & the Elastic Stack
- Introduction into the Elasticsearch Java Rest Client
- Elasticsearch - Securing a search engine while maintaining usability
- 2019
- Creating a productive terminal environment
- 2018
- Running Crystal apps in AWS Lambda
- Five years of home office - a recap
- Location Tracking with Owntracks, Serverless, Kotlin & the Elastic Stack
- 2016
- Creating a productive osx environment - Hammerspoon
- Using claudia.js and recaptcha to send emails with AWS Lambda
- Using claudia.js to send emails using AWS Lambda
- Using webtasks to send emails with harp
- 2015
- Creating a productive osx environment
- Deploy harp apps using git hooks
- Producing technical documentation - an overview
- 2014
- Walking the Dingle Way
- Wales coastal path - Gwynedd
- Wales coastal path - Pembrokeshire
- Getting started (again)
- 2013
- Spark, groovy & JRebel - a productive combination