The online ramblings of me, Darkohttps://rup12.net/en-ushttps://rup12.net/posts/adding-support-for-nebius-token-factory-to-rig/https://rup12.net/posts/adding-support-for-nebius-token-factory-to-rig/Nebius Token Factory doesn't have a native Rig provider. Here's how I hacked it in anyway using their OpenAI-compatible API, and why I still want to write a proper PR.Tue, 21 Apr 2026 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/adventures-with-sun-ultra-1-workstation/https://rup12.net/posts/adventures-with-sun-ultra-1-workstation/It is the year 2021 and I've decided to by a Sun Microsystems Workstation from 1995. Can I get it working? What are its flaws? And just how awesome it is?Mon, 10 May 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/awesome-neovim-plugins-vimplug/https://rup12.net/posts/awesome-neovim-plugins-vimplug/Do you find managing vim plugins frustrating? Do you think there needs to be a better way for that? Well then, let's talk about vim-plug. The plugin manager that plugs in plugins!Fri, 16 Apr 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/awesome-vim-plugins-quickscope/https://rup12.net/posts/awesome-vim-plugins-quickscope/Vim is all about speed and efficiency! Movement in a text file is the thing that can slow you down. Let's have a look at a plugin that solves the horizontal movement bit. Quick-ScopeWed, 21 Apr 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/can-my-sparc-server-host-my-website/https://rup12.net/posts/can-my-sparc-server-host-my-website/I'm running a live website on a 25-year-old Sun Netra X1 SPARC server from my garage. OpenBSD 7.8, httpd, pf firewall, Cloudflare tunnels for safe exposure — no port forwarding needed. Yes, it actually works.Mon, 09 Feb 2026 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/colorful-banners-with-lolbanner/https://rup12.net/posts/colorful-banners-with-lolbanner/You did not know you want this in your life until you see it! Colorful banners for your terminalTue, 09 Mar 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/database-caching-on-aws-with-valkey/https://rup12.net/posts/database-caching-on-aws-with-valkey/A companion guide to my YouTube video on database caching strategies. Covers cache-aside, write-through, cache invalidation, TTL jitter, and multi-tier caching with Rust code examples using Valkey on ElastiCache.Wed, 18 Mar 2026 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/do-awesome-things-with-iac-part1/https://rup12.net/posts/do-awesome-things-with-iac-part1/Clicking is no fun if you have to do it over and over again. Let's avoid clicking and start using code to define, describe and create our infrastructure. Let's start talking about doing awesome things with Infrastructure as CodeTue, 23 Mar 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/download-and-deserialize-10000-files-in-10-seconds/https://rup12.net/posts/download-and-deserialize-10000-files-in-10-seconds/Learn with me how to process CSV files from S3 in seconds using Rust's async concurrency, semaphores, and fearless parallelism patterns.Wed, 26 Nov 2025 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/for-the-love-of-prod-test-your-code/https://rup12.net/posts/for-the-love-of-prod-test-your-code/Why testing your code before it hits production matters more than ever. A practical guide to automated testing, CI/CD pipelines, and building confidence in your deployments using AWS tools.Mon, 28 Jun 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/how-do-i-focus-sometimes/https://rup12.net/posts/how-do-i-focus-sometimes/Wow, look at this, my first personal opinion post on something. Hey if you are struggling with focusing on your work sometimes, don'f feel bad! We all do! Here I go through a few differetn ways I keep focus on the imporant things to me, even though I am surrounded by screens, chats, and YouTube.Thu, 29 Jul 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/learning-rust-configuring-the-aws-sdk/https://rup12.net/posts/learning-rust-configuring-the-aws-sdk/Complete guide to configuring AWS SDK for Rust: credentials, regions, and localstack integration with practical examples.Mon, 22 Dec 2025 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/learning-rust-custom-errors/https://rup12.net/posts/learning-rust-custom-errors/Tired of writing the same verbose error handling boilerplate in your Axum handlers? Me too! 🙄 By creating a custom `AppError` newtype that wraps `anyhow::Error` and implements `IntoResponse` + `From<E>`, you can ditch all those ugly match statements and embrace the beautiful `?` operator.Sun, 16 Nov 2025 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/multiplex-your-terminal-with-tmux/https://rup12.net/posts/multiplex-your-terminal-with-tmux/Are you tired of your work being lost due to a broken SSH connection? Do you wish you can look at your code and run commands at the same time? Do you just want to look cool? Let's talk about TMUX - the Terminal Multiplexer.Mon, 05 Apr 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/my-experiences-with-the-apple-m1-laptop/https://rup12.net/posts/my-experiences-with-the-apple-m1-laptop/After a long time I bought myself a new laptop. I've decided to bite the bullet and grab the newly fangled Apple Silicon (M1) Macbook. Here I get to tell you my experience with it.Sat, 08 May 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/old-my-current-setup/https://rup12.net/posts/old-my-current-setup/Here is how I get all this streaming, recording, and screaming at the camera doneThu, 11 Mar 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/q-developer-cli-173-update/https://rup12.net/posts/q-developer-cli-173-update/Amazon Q Developer CLI1.7.3 introduces five key improvements: just type `q` to launch; granular tool permission controls with `/tools trust/untrust` commands; VIM integration via `/editor` command for complex prompts; multi-line editing with Ctrl+J; and enhanced context management through the `/context` command.Thu, 10 Apr 2025 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/running-obsidian-headless/https://rup12.net/posts/running-obsidian-headless/How to run Obsidian on a headless Linux server using the official obsidian-headless CLI and systemd for continuous vault syncingThu, 19 Feb 2026 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/s3-api-compatibility-is-awesome/https://rup12.net/posts/s3-api-compatibility-is-awesome/Learn how to configure AWS SDK for Rust to work with S3-compatible APIs from Cloudflare R2, Backblaze B2, Nebius, and more. Complete guide with code examples.Sat, 07 Mar 2026 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/video-transcription-pipeline-with-prefect-and-nebius/https://rup12.net/posts/video-transcription-pipeline-with-prefect-and-nebius/I built a video transcription pipeline using Prefect for orchestration and Nebius AI Jobs running on H200 GPUs. Here's how it works, the Python SDK gotchas, and what I learned about object storage mounts the hard way.Wed, 15 Apr 2026 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/vim-spellchecker/https://rup12.net/posts/vim-spellchecker/Did you know that vim has a built-in spell checker?Sat, 06 Mar 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/win2k-on-real-hw/https://rup12.net/posts/win2k-on-real-hw/Getting Windows 2000 to run on actual hardware! How hard can it be?Mon, 15 Mar 2021 00:00:00 GMTDarko Mesaroshttps://rup12.net/posts/write-your-mcps-in-rust/https://rup12.net/posts/write-your-mcps-in-rust/A complete guide to building Model Context Protocol (MCP) servers in Rust using the rmcp crate. Covers server setup, tool definitions, and connecting to MCP clients like Claude and Kiro.Thu, 11 Dec 2025 00:00:00 GMTDarko Mesaros