https://mopalinski.com/Recent content in Home on Maciej OpalińskiHugo -- gohugo.ioenmaciej@mopalinski.com (Maciej Opaliński)maciej@mopalinski.com (Maciej Opaliński)© 2026 Maciej Opalińskihttps://mopalinski.com/technologies/Sat, 08 Apr 2023 01:25:55 +0200maciej@mopalinski.com (Maciej Opaliński)https://mopalinski.com/technologies/<p>Here are all the technologies that I use in my projects.</p> <h2 class="relative group">Programming Languages <div id="programming-languages" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#programming-languages" aria-label="Anchor">#</a> </span> </h2> <div class="flex flex-wrap justify-evenly"> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/cplusplus/cplusplus-original.svg" alt="C++" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/typescript/typescript-original.svg" alt="TypeScript" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/html5/html5-original-wordmark.svg" alt="HTML" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/css3/css3-original-wordmark.svg" alt="CSS" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/sass/sass-original.svg" alt="SASS" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/java/java-original-wordmark.svg" alt="Java" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/php/php-original.svg" alt="PHP" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/python/python-original-wordmark.svg" alt="Python" /> </div> <h2 class="relative group">Databases <div id="databases" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#databases" aria-label="Anchor">#</a> </span> </h2> <div class="flex flex-wrap justify-evenly"> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/postgresql/postgresql-original-wordmark.svg" alt="PostgreSQL" /> <img class="w-36 p-2" src="https://cdn.svgporn.com/logos/mariadb.svg" alt="MariaDB" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/redis/redis-original-wordmark.svg" alt="Redis" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/sqlite/sqlite-original-wordmark.svg" alt="SQLite" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/mongodb/mongodb-original-wordmark.svg" alt="MongoDB" /> </div> <h2 class="relative group">Tools <div id="tools" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#tools" aria-label="Anchor">#</a> </span> </h2> <div class="flex flex-wrap justify-evenly"> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/vscode/vscode-original-wordmark.svg" alt="Visual Studio Code" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/git/git-original-wordmark.svg" alt="Git" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original-wordmark.svg" alt="GitHub" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/cmake/cmake-original-wordmark.svg" alt="CMake" /> <img class="w-36 p-2" src="https://cdn.svgporn.com/logos/turborepo.svg" alt="Turborepo" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/yarn/yarn-original-wordmark.svg" alt="Yarn" /> <img class="w-36 p-2" src="https://cdn.svgporn.com/logos/vitejs.svg" alt="Vite" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/babel/babel-original.svg" alt="Babel" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/jest/jest-plain.svg" alt="Jest" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/eslint/eslint-original-wordmark.svg" alt="ESLint" /> <img class="w-36 p-2" src="https://cdn.svgporn.com/logos/prettier.svg" alt="Prettier" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/figma/figma-original.svg" alt="Figma" /> <img class="w-36 p-2" src="https://static1.smartbear.co/swagger/media/assets/images/swagger_logo.svg" alt="Swagger" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/storybook/storybook-original-wordmark.svg" alt="Storybook" /> </div> <h2 class="relative group">Libraries &amp; Frameworks <div id="libraries--frameworks" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#libraries--frameworks" aria-label="Anchor">#</a> </span> </h2> <div class="flex flex-wrap justify-evenly"> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/nodejs/nodejs-original-wordmark.svg" alt="Node.js" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/react/react-original-wordmark.svg" alt="React.js" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/express/express-original-wordmark.svg" alt="Express.js" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/nestjs/nestjs-original-wordmark.svg" alt="Nest.js" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/nextjs/nextjs-original-wordmark.svg" alt="Next.js" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/bootstrap/bootstrap-plain-wordmark.svg" alt="Bootstrap" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/materialui/materialui-original.svg" alt="Material UI" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/socketio/socketio-original-wordmark.svg" alt="SocketIO" /> </div> <h2 class="relative group">Self Hosted <div id="self-hosted" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#self-hosted" aria-label="Anchor">#</a> </span> </h2> <div class="flex flex-wrap justify-evenly"> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/docker/docker-original-wordmark.svg" alt="Docker" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/nginx/nginx-original.svg" alt="Nginx" /> <img class="w-36 p-2" src="https://upload.wikimedia.org/wikipedia/commons/6/60/Nextcloud_Logo.svg" alt="Nextcloud" /> <img class="w-36 p-2" src="https://upload.wikimedia.org/wikipedia/commons/b/bb/Gitea_Logo.svg" alt="Gitea" /> <img class="w-36 p-2" src="https://upload.wikimedia.org/wikipedia/commons/a/a2/SyncthingLogoHorizontal.svg" alt="Syncthing" /> <img class="w-36 p-2" src="https://raw.githubusercontent.com/thelounge/thelounge/master/client/img/logo-vertical-transparent-bg.svg" alt="TheLounge" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/gitlab/gitlab-original-wordmark.svg" alt="GitLab" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/grafana/grafana-original-wordmark.svg" alt="Grafana" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/prometheus/prometheus-original-wordmark.svg" alt="Prometheus" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/hugo/hugo-original-wordmark.svg" alt="Hugo" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/wordpress/wordpress-original.svg" alt="WordPress" /> </div> <h2 class="relative group">Other <div id="other" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#other" aria-label="Anchor">#</a> </span> </h2> <div class="flex flex-wrap justify-evenly"> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/linux/linux-original.svg" alt="Linux" /> <img class="w-36 p-2" src="linuxcnc.svg" alt="LinuxCNC" /> <img class="w-36 p-2" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/arduino/arduino-original-wordmark.svg" alt="Arduino" /> <img class="w-36 p-2" src="https://cdn.svgporn.com/logos/platformio.svg" alt="PlatformIO" /> </div> <p>All trademarks and logos are the property of their respective owners. They are used here for informational purposes only.</p>https://mopalinski.com/posts/booting-linux-without-an-init-system/Thu, 06 Apr 2023 17:20:00 +0200maciej@mopalinski.com (Maciej Opaliński)https://mopalinski.com/posts/booting-linux-without-an-init-system/<h2 class="relative group">Introduction <div id="introduction" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#introduction" aria-label="Anchor">#</a> </span> </h2> <p>In a <a href="https://mopalinski.com/posts/the-linux-boot-process-explained/" >previous article</a> I explained the Linux boot process. The last step of the Linux boot process is the execution of init system&rsquo;s binary. But what if we don&rsquo;t want to have a conventional init system? In this article, we are going to write our own <code>/init</code> script.</p>https://mopalinski.com/posts/the-linux-boot-process-explained/Wed, 05 Apr 2023 10:32:32 +0100maciej@mopalinski.com (Maciej Opaliński)https://mopalinski.com/posts/the-linux-boot-process-explained/<h2 class="relative group">Introduction <div id="introduction" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#introduction" aria-label="Anchor">#</a> </span> </h2> <p>If you are reading this, you probably used Linux before. No matter if you are running some Linux distribution as a daily driver or not, you might use an Android phone that is using the Linux kernel. You also requested this website content from a server running Linux. But did you ever wonder how Linux works? In this article, I am going to explain one of the most fundamental aspects of Linux - its boot process.</p>https://mopalinski.com/about-me/Sun, 01 Jan 2023 00:00:00 +0100maciej@mopalinski.com (Maciej Opaliński)https://mopalinski.com/about-me/<p>I am a software engineer with a passion for web development and embedded programming. I also specialize in system administration and DevOps. I have experience with a <a href="https://mopalinski.com/technologies/" >wide range of technologies</a>.</p>https://mopalinski.com/contact/Sun, 01 Jan 2023 00:00:00 +0100maciej@mopalinski.com (Maciej Opaliński)https://mopalinski.com/contact/<h2 class="relative group">Email <div id="email" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#email" aria-label="Anchor">#</a> </span> </h2> <p>The best way to contact me is by email: <a href="mailto:maciej@mopalinski.com" >maciej@mopalinski.com</a>.</p> <h3 class="relative group">GPG <div id="gpg" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#gpg" aria-label="Anchor">#</a> </span> </h3> <p>All legitimate emails from me will be signed with my GPG key. It is advised to encrypt your message with my GPG key prior to sending.</p>