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post 23

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A Trusted Certificate for your Homelab Sites Making your Homelab Apps Available under a .local Domain Test for Tags in Dagster Many Small Models for Speed Dagster: all the Ways you can Differentiate Assets Logging for Machine Learning A Model not in Production is a Waste of Money and Time Your Machine Learning Model is not the Product Message Broker Pattern for ML Systems OpenSanctions is an amazing example of entity resolution at scale zettlr to hugo Zettlr to mkdocs Private Personal Knowledge Management Entity resolution for data scientists ChatGPT in (the Core of) your Product is a Bad Idea The art (and science) of feature engineering The city, neighborhoods and streets: Organizing your MLproject Should I Move to a Database? Quick post - detect and fix this ggplot2 antipattern Graphing My Daily Phone Use Cleaning up and combining data, a dataset for practice Introducing Badgecreatr, a package that places badges in your readme Portioning projects

walkthrough 15

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Pytorch on an AMD gpu (frame.work 13) Creating One Unified Calendar of all Data Science Events in the Netherlands Munging and reordering Polarsteps data Scraping Gdpr Fines Setting up CSP on your hugo (+netlify) site interactive ggplot with tooltip using plotly Use `purrr` to feed four cats Adding logging to a shiny app with loggit Moving parts of a country over a map Adding bananas from the commandline (extending the oomsifier) Downloading files from a webserver, and failing. Building the oomsifyer Where to live in the Netherlands based on temperature XKCD style Generate text using Markov Chains (sort of) Version control with Git

tutorial 14

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Logging my phone use with tasker Running an R script on heroku Tweeting daily famous deaths from wikidata to twitter with R and docker How to set up GNU Terry Pratchett on hugo with netlify Turning kindle notes into a tidy data Writing manuscripts in Rstudio, easy citations Plotting a map with ggplot2, color by tile Introduction to R projects From spss to R, part 4 Creating a package for your data set From spss to R, part 3 Tidying your data From spss to R, part 2 From spss to R, part 1

thoughts 13

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A (Semantic) Search Engine will not Make you Organized The Disney+ App Really Sucks So you've just lost a million dollars in the genAI hype Just enough kubernetes to be dangerous An offline first smart home is really nice Adaptive Plasticity and Life History Theory High and Low Variance in Data Science Work Are you a Fearless Deployer? William Sealy Gosset one of the first data scientists Make more useless packages! If blogging was like academia, we would all be saved, thank you for your edits. UseR Brussels 2017 Your most valuable collaborator, future-you

reminder 4

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add abbreviations to your rmarkdown doc Downloading files from a webserver, and failing. Submitting your first package to CRAN, my experience Non-standard-evaluation and standard evaluation in dplyr

analysis 3

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Where does the output of Rscript go? Gosset part 2: small sample statistics Arthur blinked, Ford shrugs, but Zaphod leapt; text as graph

clarification 2

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Search tools Setting up a version controlled shiny-server

lessons-learned 2

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Hacking `/etc/ssl/certs/` with Containers in Corporate Networks Dagster: Integrating Jobs with Assets and Vice Versa.

rant 1

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A rant about tp-link wifi boxes

Roel M. Hogervorst  •  2026  •  Roel's R-tefacts Donate using Liberapay or buy me a coffee

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