[{"content":"I finally decided to end my bad LinkedIn habit and get back to writing on my own self-hosted blog.\nThese are my thoughts that led to this decision.\nFirst of all, LinkedIn is in the late stages of the enshittification cycle.\nBeing on LinkedIn felt stressful and unhealthy. Its algorithmic feed felt like I was being force-fed low-nutrient, high-sugar content. I realised that there are many, many things I HATE about LinkedIn and none that I actually love. I could rant about it for quite a while, but I don\u0026rsquo;t feel the need. We all know how shitty it is.\nThere have been decisions in my life that had a great positive impact on its quality. Quitting smoking. Canceling TV. Starting running four times a week. Stopping watching the news.\nOne of the few bad habits I still have is regularly checking the LinkedIn newsfeed. I guess I could call it a \u0026lsquo;guilty pleasure\u0026rsquo;, but that\u0026rsquo;s only partly correct. It\u0026rsquo;s addictive and lately there is not much pleasure left in it.\nI see exactly zero reasons to stay, so I\u0026rsquo;m leaving and changing things.\nI used to write blogs about trading a decade ago. That was a great way to align my thoughts and create clarity. It was truly enjoyable.\nStarting this blog (and its adjacent ones, more on that later) is the beginning of something new, and hopefully a couple of good habits to replace the bad ones.\nThis will be different from now on I\u0026rsquo;ll be writing to align my thoughts, about stuff that matters to me, not to please a ranking algorithm. I\u0026rsquo;ll be writing to maintain and improve my writing skills, not to impress others or promote myself. I predict that being able to write well without relying on AI will become a rare and valuable skill. No ads, no promoted posts, no algorithmic feeds. No likes, no public comments. I love feedback, and email works great for that. LinkedIn will become my online resume. It\u0026rsquo;s pretty decent for that, but that\u0026rsquo;s it. Maybe an occasional visit and comment, like the occasional cigarette some ex-smokers still allow themselves. But no daily scrolling and posting. I really want to quit. For my own reading, I\u0026rsquo;ll use hand-picked RSS feeds from blogs that excel in quality. Reading just one post a day that triggers something positive in me or provides a fresh perspective feels better than ingesting an hour of slop on LinkedIn. I\u0026rsquo;m sure this will have a positive effect on me, and I hope this blog will be of value to others. But if not, that\u0026rsquo;s fine too.\n","permalink":"https://kuznetsov.nl/posts/hello-world/","summary":"\u003cp\u003eI finally decided to end my bad LinkedIn habit and get back to writing on my own self-hosted blog.\u003c/p\u003e\n\u003cp\u003eThese are my thoughts that led to this decision.\u003c/p\u003e\n\u003cp\u003eFirst of all, LinkedIn is in the late stages of the \u003ca href=\"https://en.wikipedia.org/wiki/Enshittification\"\u003eenshittification\u003c/a\u003e cycle.\u003c/p\u003e\n\u003cp\u003eBeing on LinkedIn felt stressful and unhealthy. Its algorithmic feed felt like I was being force-fed low-nutrient, high-sugar content. I realised that there are many, many things I HATE about LinkedIn and none that I actually love. I could rant about it for quite a while, but I don\u0026rsquo;t feel the need. We all know how shitty it is.\u003c/p\u003e","title":"Breaking my LinkedIn habit"},{"content":"Salderingsregeling stopt en iedereen en zijn moeder is thuisaccu\u0026rsquo;s aan het kopen. Maar of het werkelijk een slimme investering is, is een \u0026ldquo;het hangt ervan af\u0026rdquo;-verhaal. Gelukkig houd ik mijn energieverbruik voor gas en elektriciteit al jaren nauwkeurig bij, met een resolutie van één uur. Dat maakt het mogelijk om vrij nauwkeurig uit te rekenen wat een thuisaccu of warmtepomp voor mijn energiekosten zou betekenen.\nIk wilde weten wat ik in mijn situatie zou besparen met een thuisaccu zonder salderingsregeling.\nDe berekening is best interessant, want de besparing hangt af van de accucapaciteit. Vol is vol. Dus te klein is niet goed, maar te groot ook niet: je betaalt voor capaciteit die je niet gebruikt. Dus heb ik even een model gemaakt en doorgerekend. Gelukkig gaat dat erg makkelijk tegenwoordig. Dat levert leuke plaatjes op die het delen waard zijn.\nIn mijn situatie zou een accu van 5 kWh zo\u0026rsquo;n € 200 per jaar besparen. Boven 5kWh vlakt de besparing snel af. Besparing in de toekomst wordt waarschijnlijk lager, omdat ik van plan ben meer energie direct te gebruiken dan nu, bijvoorbeeld door airco\u0026rsquo;s en de warmtepomp te laten draaien als de zon schijnt. Toevallig zag ik online een 5,12 kWh thuisbatterij met omvormer voor 1250,-. Met correctie op toekomstige besparing, zeg 150 euro per jaar, komt terugverdientijd uit op 8.3 jaar. Twijfelgeval.\nUit de berekening blijkt dat mijn energierekening volgend jaar zo\u0026rsquo;n 500 euro hoger uitvalt door het afschaffen van de salderingsregeling. Het was een mooie subsidie, daar wil ik de overheid hartelijk voor bedanken. Alle subsidies zijn eindig, dit wisten we al langer.\nEn over data: er zijn al zoveel dashboards die data visualiseren zonder echte inzichten op te leveren. Leuk om naar te kijken, dat is het. De echte waarde zit in de ruwe data plus een analysetool die een antwoord geeft op een relevante vraag, zoals: \u0026ldquo;Hoeveel bespaar ik met een accu van 5 kWh?\u0026rdquo;\n","permalink":"https://kuznetsov.nl/posts/terugverdientijd-thuisbatterij/","summary":"\u003cp\u003eSalderingsregeling stopt en iedereen en zijn moeder is thuisaccu\u0026rsquo;s aan het kopen.\nMaar of het werkelijk een slimme investering is, is een \u0026ldquo;het hangt ervan af\u0026rdquo;-verhaal.\nGelukkig houd ik mijn energieverbruik voor gas en elektriciteit al jaren nauwkeurig bij, met een resolutie van één uur. Dat maakt het mogelijk om vrij nauwkeurig uit te rekenen wat een thuisaccu of warmtepomp voor mijn energiekosten zou betekenen.\u003c/p\u003e\n\u003cp\u003e\u003cimg alt=\"Afname, teruglevering en gasverbruik per dag, 2018-2026\" loading=\"lazy\" src=\"/posts/terugverdientijd-thuisbatterij/overview.png\" title=\"Dagelijks verbruik sinds 2018, met 30-daags gemiddelde\"\u003e\u003c/p\u003e","title":"Terugverdientijd thuisbatterij"},{"content":"Looking for a better alternative to spreadsheets for simple calculations? I\u0026rsquo;ve found my perfect one 🤩 (well, after tweaking)\nLong story short, out of frustration with spreadsheets, I started looking for alternatives. Gemini helped me find a hidden gem on GitHub — a nice app that I instantly loved. The idea is simple - type text with formulas and it instantly recalculates all results, on each keystroke. Nothing to install (browser based), no hidden formulas.\nThe app was great to start with, but being spoilt with features like synthax highlighting and autocomplete it was not perfect yet. And this is the beauty of open-source software and Cladue code - I could fork it and develop further to my liking, adding features that I really wanted and even the \u0026rsquo;nice-to-have\u0026rsquo; ones, all while sitting in the back seat of a car during 9 hour drive to Italian alps.\nCompletely free and open source. Check it out:\napp\n","permalink":"https://kuznetsov.nl/posts/calced-better-way-to-do-quick-calculations/","summary":"\u003cp\u003eLooking for a better alternative to spreadsheets for simple calculations?\nI\u0026rsquo;ve found my perfect one 🤩 (well, after tweaking)\u003c/p\u003e\n\u003cp\u003eLong story short, out of frustration with spreadsheets, I started looking for alternatives. Gemini helped me find a \u003ca href=\"https://github.com/karlb/calced\"\u003ehidden gem on GitHub\u003c/a\u003e — a nice app that I instantly loved. The idea is simple - type text with formulas and it instantly recalculates all results, on each keystroke. Nothing to install (browser based), no hidden formulas.\u003c/p\u003e","title":"Calced - better way to do quick calculations"},{"content":"My work on projects is often like a kid in a candy store — easily distracted, always starting something new. The result is 200+ repos scattered over three platforms, many unfinished and forgotten. I often lose track of what I worked on more than a month ago.\nSo I started another project to fix that. Obviously.\nThis one is a small CLI that pulls all your repos from GitHub, GitLab, Gitea — whatever you use — and lets you track and sync them from one place on commandline.\nHonestly, nothing pretentious - just a tool that tracks all your repos and shows \u0026rsquo;latest last\u0026rsquo; on the command line. Small and boring, but one of the most useful tools that I have ever made for myself\u0026hellip;\njev@viviobook:~$ gpr list 245 repos ──────────────────────────────────────────────────────────── zigzag [public] 12 years ago https://github.com/sjev/ZigZag Python library for identifying the peaks and valleys of a t… spreadbuilder [public] 11 years ago https://github.com/sjev/spreadBuilder visual tool for pairs trading python-photo-manager [public] 11 years ago https://github.com/sjev/python-photo-manager bare bones toolset for managing a folder-organized photo co… https://github.com/sjev/git-projects\n","permalink":"https://kuznetsov.nl/posts/git-projects-one-tool-to-rule-all-your-repos/","summary":"\u003cp\u003eMy work on projects is often like a kid in a candy store — easily distracted, always starting something new. The result is 200+ repos scattered over three platforms, many unfinished and forgotten. I often lose track of what I worked on more than a month ago.\u003c/p\u003e\n\u003cp\u003eSo I started another project to fix that. Obviously.\u003c/p\u003e\n\u003cp\u003eThis one is a small CLI that pulls all your repos from GitHub, GitLab, Gitea — whatever you use — and lets you track and sync them from one place on commandline.\u003c/p\u003e","title":"git-projects - one tool to rule all my repos"},{"content":"I’m a nerd, an entrepreneur, and a lifelong learner. I love building things - whether it\u0026rsquo;s hardware, words, or bytes. I like figuring out how things work. Doing the right thing is more important for me than doing things right. I have a masters degree in Physics from TU Delft.\nI usually juggle a dozen projects at once, getting distracted like a kid in a candy store. Starting something new is easy for me. Finishing is a challenge though.\nI\u0026rsquo;m not a great writer, my writing used to be mostly software; mapping out structured abstract systems is a great mental workout. But since I spend most of my time now reading code written by LLMs, I\u0026rsquo;m back to writing words to keep my brain from rotting. And to become better at writing. Hence this blog.\nIf you find anything useful here or want to trade ideas, drop me an email. I\u0026rsquo;d love to hear from you.\n","permalink":"https://kuznetsov.nl/about/","summary":"\u003cp\u003eI’m a nerd, an entrepreneur, and a lifelong learner. I love building things - whether it\u0026rsquo;s hardware, words, or bytes. I like figuring out how things work. Doing the right thing is more important for me than doing things right. I have a masters degree in Physics from TU Delft.\u003c/p\u003e\n\u003cp\u003eI usually juggle a dozen projects at once, getting distracted like a kid in a candy store. Starting something new is easy for me. Finishing is a challenge though.\u003c/p\u003e","title":"About"},{"content":"Sites and blogs I enjoy and recommend.\nTech blogs Jeff Geerling — Raspberry Pi, homelab and hardware projects. Julia Evans — clear explanations of Linux, networking and programming. Privacy and digital rights Bert Hubert — technology, privacy and European digital sovereignty. Bits of Freedom — Dutch organisation for internet freedom and privacy. Climate and environment Advocaat van de Aarde — Dutch foundation that uses the law to protect the planet. Mooi Schandelo — local association that protects nature and livability around Schandelo. Mobilisation for the Environment — Dutch environmental group that takes pollution cases to court. Fun xkcd — webcomic about science, math and tech. Wumo — absurd daily comic strip. De Speld — Dutch satirical news. My sites Dr. Watt — home energy blog and knowledge base (NL). ROX Automation — open-source controllers and software for smart machines and robots. Datasanering — data cleanup, compliance and migration for Dutch organisations. ","permalink":"https://kuznetsov.nl/links/","summary":"Sites and blogs I read and recommend.","title":"Links"}]