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Home Assistant
Home Assistant: Concurrency Model
I like to think of myself as a computer scientist. I want to know how things work. Then I want to understand why they work that way.
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Home Assistant
Home Assistant: Hypervolt Resilience, Configuration and Backups
The Hypervolt EV charger integration is an important dependency for the automations and dashboards that I’m running on Home Assistant. Now that I’m a few weeks in, I’ve noticed some edge cases where things are just not right.
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Home Assistant
Home Assistant: Octopus, Repairs and Blueprints
Last time, we touched briefly on how to extract electricity meter readings from the Home Assistant Octopus Energy integration. I think it’s worth doing a deeper dive.
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Home Assistant
Home Assistant: Dashboards, Statistics and Custom Cards
I now have useful data being collected and displayed on the Home Assistant built-in energy dashboard. Of course, it’s not being presented exactly as I would like and doesn’t include all the data sources I’d like. Time to dive into the wonderful world of custom dashboards.
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Home Assistant
Home Assistant: Integrals and Utility Meters
I’m finding the Home Assistant Energy Dashboard to be pretty but not very useful. The main problem is that the data is very coarse grained. The dashboard is driven by Home Assistant’s statistics system and requires metered entities. That is, sensors that track total amounts of energy (kWh), that increase over time.
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Home Assistant
Home Assistant: Helpers, Templates and Solar Forecasts
Last time, I took you through setting up a Home Assistant Green, installing HACS, adding custom integrations and then creating an automation to disable discharge of my home battery while my EV is charging.
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Front End
Vitest 3 Monorepo Setup
I was about to get started turning my stub
react-spreadsheetpackage into a real one, when I noticed a new Vitest related warning from VS Code. -
Blog
Rewriting History
This is a blog, not a set of living documents. Each post is a moment in time. However, time passes, and sometimes you find things that are wrong in an old post.
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Gear
Home Assistant
Home Assistant
Home Assistant has been on my radar for a while. I’ve always liked the idea of having a small local server running 24x7 that I could use to “automate stuff”. Two things put me off doing anything about it. There was low level anxiety over picking the right hardware and OS to run it on, but more importantly there was the lack of anything that really needed automating.
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Event Sourced
Front End
Snapshot Benchmarking with Vitest
The framework for our event sourced spreadsheet is in place. Entries are being written to the log, snapshots are created at regular intervals, clients start by reading the most recent snapshot and then following along as the log is updated. All this has been done tracer bullet style, with simple code that is largely unoptimized and not scalable.