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avatar Marcin Szewczyk

Notes on code, mathematics, and engineering simulations.

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© 2026 Marcin Szewczyk
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Jekyll Blog: Newsletter – MailerLite

Newsletter implementation using a Static Frontend + SaaS Backend architecture (Jekyll, Chirpy, MailerLite).

Mar 4, 2026 Jekyll Blog

Linux: Installing Ubuntu on External SSD from ISO Image (Rufus)

How to install Ubuntu on an external SSD using an ISO image and Rufus, without modifying the host system.

Mar 3, 2026 Linux

Environment: Jekyll – Toolchain Configuration (VS Code, Git, SSH, Ruby)

Configuration of a local development environment for a Jekyll blog: Git, SSH, Ruby (DevKit) and local build workflow.

Mar 2, 2026 Environment

Linux: Shell Commands – Cheat Sheet

A cheat sheet of the commonly used Unix and Linux commands with examples of working with streams and pipes.

Feb 25, 2026 Linux

Jekyll Blog: Blog statistics in Chirpy theme – Liquid

Adding a blog statistics panel in the Chirpy theme: number of posts, categories, tags and total reading time generated statically by Jekyll using Liquid.

Feb 24, 2026 Jekyll Blog

Jekyll Blog: Sidebar Footer in the Chirpy Theme – CSS

How to add a custom footer to the sidebar in the Chirpy theme.

Feb 24, 2026 Jekyll Blog

Jekyll Blog: Pinned Posts in the Chirpy Theme – CSS

How to add a custom custom.css file in the Chirpy theme and highlight pinned posts without modifying theme files.

Feb 23, 2026 Jekyll Blog

Tools: Generating Web Images from PDF (Poppler + ImageMagick)

Convert PDF to PNG using Poppler (pdftoppm) and process the image with ImageMagick to generate blog-ready web images.

Feb 22, 2026 Tools

LaTeX: VS Code instead of TeXstudio – step-by-step

Step-by-step LaTeX setup in VS Code: installing TeX Live, configuring LaTeX Workshop with latexmk, enabling PDF preview and SyncTeX, and organizing the build directory with Git.

Feb 21, 2026 LaTeX

LaTeX: Hello World – a (Nearly) Minimal Example

A LaTeX 'Hello World' in two variants: a minimal file and a practical template with preamble, packages, sections, math, a figure and bibliography, plus the basics of compiling to PDF.

Feb 20, 2026 LaTeX
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Blog Statistics

  • Posts 34
  • Categories 17
  • Reading time (min) 105

Recently Updated

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  • Graphics: TikZ in LaTeX – workflow in a larger project (PDF instead of inline)
  • Graphics: Plots in Python (Matplotlib) with LaTeX formatting

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