I've been using Obsidian for a while now, and after [attending pkmsummit 2024](https://notes.peterpeerdeman.nl/pkm-summit-2024) I was finally convinced to start publishing parts of my personal knowledge management ([PKM](https://notes.peterpeerdeman.nl/personal-knowledge-management)) system. Before we get started with my modestly complicated setup, lets start with the goals and requirements I ha...

Personal Knowledge Management isn't new. Chris Alderich showed us at [pkmsummit2024](https://notes.peterpeerdeman.nl/pkm-summit-2024) that people have been keeping notes on all kinds of subjects for ages, and we seem to keep rediscovering the power of organising our thoughts, putting them to paper and thinking about how they connect to other notes in our system. And that is exactly what [persona...

As the threats from the google developer console to close down my account became bigger and deadline-ier, I stepped up and decided to publish an update to the ancient app that was purged from the store long ago. As the API for this app was [recently revived during the kubernetes project](./deploying-a-nodejs-postgres-application-to-kubernetes-raspberry-pi-cluster), I could revisit the mobile app....

Just a little tidbit on hardening. As I was [setting up some services with Traefik's IngressRoutes](./manage-ssl-certificates-and-ingress-for-services-in-k3s-kubernetes-cluster-using-cert-manager-letsencrypt-and-traefik) I wanted to see what I could do to easily harden these services. There are very elaborate solutions to doing extensive hardening on kubernetes services such as [crowdseq](https...

One of the reasons I'm a big fan of terminals is not having to remove my fingers from the keyboard and using the mouse. I could find my way around quite well, and found so many solutions but selecting terminal output and using that in the next command was always stille a step too far. Introducing [tmux copy mode](https://dev.to/iggredible/the-easy-way-to-copy-text-in-tmux-319g), which has always...

Sometimes you stumble upon a task and think by yourself: what if I get this done with vim? This time: renaming and organising files and folders. I'm an avid user of the [nerdtree plugin](https://github.com/preservim/nerdtree) which already does a great job at editing folders, copying files and navigating around filestructures, but for renaming and moving multiple files I still had to resort to ba...

When I would manually look through my `docker-compose.yml` files for regular server maintenance, I used to keep a browser tab with hub.docker.com open and manual check if there were new versions available. After doing this for the upteenth time, I decided to look if there wasn't a way to get pro-actively notified when a new docker image is released. Lo and behold: the awesome application [DIUN](...

As I am now managing all my SSL certificates using [certmanager in kubernetes](../manage-ssl-certificates-and-ingress-for-services-in-k3s-kubernetes-cluster-using-cert-manager-letsencrypt-and-traefikt), I need to find a solution to access legacy applications with a secure SSL connection. All services are hosted on the same, whilst a couple of these applications have not been ported to kubernetes ...

As you have probably already noticed, I thoroughly enjoy [collecting timeseries data using influxdb and grafana](../blog/rasplogger-influxdb-grafana-dashboards-showcase). With recent developments in AI gaining momentum, I was curious to see if I would be able to predict the future using my low-power home server setup. ## Goal: predicting solar yield over the next year I was already [collecting ...

Alright. We've [built a cluster](../blog/kubernetes-cluster-build-with-raspberry-pi-and-poe-hats), we have [deployed our first app](../blog/deploying-a-nodejs-postgres-application-to-kubernetes-raspberry-pi-cluster) and now want to expose our hard work to the internet. Of course we want to provide a secure connection via https, and we do not want to refresh our SSL certificates by hand. To achiev...