streamcode9 · streamcode9 · Aug 10, 2025 · Aug 10, 2025
diff --git a/_config.yml b/_config.yml
@@ -1,3 +1,13 @@
 title: Streamcode9 Blog
 description: A space for sharing code experiments and musical riffs.
 theme: minima
+
+plugins:
+  - jekyll-archives
+
+jekyll-archives:
+  enabled:
+    - categories
+  layout: archive
+  permalinks:
+    category: /category/:name/
diff --git a/_posts/2024-01-01-games.md b/_posts/2024-01-01-games.md
@@ -1,3 +1,7 @@
+---
+categories: [games]
+---
+
 ## Sports & Tabletop
 - **Chess**
 - Go

diff --git a/_posts/2024-01-02-science.md b/_posts/2024-01-02-science.md
@@ -1,3 +1,7 @@
+---
+categories: [science]
+---
+
 ### Mathematics
 - **[Math](https://github.com/streamcode9/os/blob/main/math.md)**
 - c. 300 BCE – Euclid writes Elements, a foundational text in geometry and logical deduction.

diff --git a/_posts/2024-01-03-countries.md b/_posts/2024-01-03-countries.md
@@ -1,3 +1,7 @@
+---
+categories: [countries]
+---
+
 * norway
 * danmark
 * sweeden

diff --git a/_posts/2024-01-04-philosophy.md b/_posts/2024-01-04-philosophy.md
@@ -1,3 +1,7 @@
+---
+categories: [philosophy]
+---
+
 * Escapism
   * [Ukulele](/2024/07/12/ukulele.html)
   * [Music theory](/2024/11/05/music-theory.html)

diff --git a/_posts/2024-01-05-cinema.md b/_posts/2024-01-05-cinema.md
@@ -1,3 +1,7 @@
+---
+categories: [cinema]
+---
+
 * wednesday
 * marvel & dc
 * The day of the Jackal

diff --git a/_posts/2024-01-06-Karl-Marx.md b/_posts/2024-01-06-Karl-Marx.md
@@ -1,3 +1,7 @@
+---
+categories: [karl-marx]
+---
+
 Суть марксизма заключается в анализе общества, экономики и истории через призму классовой борьбы. Марксизм утверждает, что история человечества — это история борьбы между эксплуатируемыми и эксплуататорами, а основой общества является способ производства (экономическая база), который определяет политическую и идеологическую надстройку.  
 
 Основные идеи марксизма:  

diff --git a/_posts/2024-01-07-Ivan-Pavlov.md b/_posts/2024-01-07-Ivan-Pavlov.md
@@ -1,3 +1,7 @@
+---
+categories: [ivan-pavlov]
+---
+
 Суть работ Ивана Петровича Павлова заключается в изучении физиологии пищеварения и механизмов высшей нервной деятельности, особенно условных рефлексов.  
 
 1. **Исследования пищеварения**: Павлов получил Нобелевскую премию по физиологии и медицине (1904) за изучение работы пищеварительной системы. Он подробно описал роль слюнных, желудочных и кишечных желез, используя метод фистул — хирургически созданных отверстий в органах животных.  

diff --git a/_posts/2024-01-08-epub-fb2.md b/_posts/2024-01-08-epub-fb2.md
@@ -1,3 +1,7 @@
+---
+categories: [epub-fb2]
+---
+
 FB2 и EPUB – это форматы электронных книг, но у них есть отличия:  
 
 ### **FB2 (FictionBook 2.0)**  

diff --git a/_posts/2024-01-09-taiji-double-weight.md b/_posts/2024-01-09-taiji-double-weight.md
@@ -1,3 +1,7 @@
+---
+categories: [taiji-double-weight]
+---
+
 The **"double weight" (雙重, shuāng zhòng) or "double weighted"** principle in Taijiquan (Tai Chi Chuan) is a concept often mentioned in classical Taiji theory but widely misunderstood. The phrase appears in texts like the *Taijiquan Classics*, which state:  
 
 *"The root of the disease of double weighting is that the movement is not understood. If one does not know how to distinguish full and empty, then one’s steps will be heavy and sluggish."*  

diff --git a/_posts/2024-06-30-literature.md b/_posts/2024-06-30-literature.md
@@ -1,3 +1,7 @@
+---
+categories: [literature]
+---
+
 * bulgakov
 * strugatskie
 * Conan Doyle

diff --git a/_posts/2024-07-01-origami.md b/_posts/2024-07-01-origami.md
@@ -1,3 +1,7 @@
+---
+categories: [origami]
+---
+
 # Origami Learning Path: From Beginner to Master
 
 ## Level 1: Foundation

diff --git a/_posts/2024-07-02-music.md b/_posts/2024-07-02-music.md
@@ -1,3 +1,7 @@
+---
+categories: [music]
+---
+
 * Paganini
 * Billie Eilish
 * Math rock

diff --git a/_posts/2024-07-03-art.md b/_posts/2024-07-03-art.md
@@ -1,3 +1,7 @@
+---
+categories: [art]
+---
+
 * Picasso
 * Breigel
 * Bosh

diff --git a/_posts/2024-07-04-anime.md b/_posts/2024-07-04-anime.md
@@ -1,3 +1,7 @@
+---
+categories: [anime]
+---
+
 ### Level 1: The Curious Newcomer
 - **Goal**: Discover anime and understand what it is.
 - **Actions**:

diff --git a/_posts/2024-07-05-bike.md b/_posts/2024-07-05-bike.md
@@ -1,3 +1,7 @@
+---
+categories: [bike]
+---
+
 * Specialized: Known for the iconic Stumpjumper, they offer versatile bikes for all disciplines, from cross-country to downhill, with cutting-edge tech like adjustable geometry.
 * Trek: A giant in the industry, Trek’s Fuel EX is a do-it-all trail bike. They’re reliable, widely available, and back their frames with a lifetime warranty.
 * Santa Cruz: Loved for fun, durable bikes like the Tallboy, they excel in trail and downhill with premium carbon frames.

diff --git a/_posts/2024-07-11-health.md b/_posts/2024-07-11-health.md
@@ -1,5 +1,6 @@
 ---
 title: Health
+categories: [health]
 ---
 
 

diff --git a/_posts/2024-07-12-ukulele-2.md b/_posts/2024-07-12-ukulele-2.md
@@ -1,3 +1,7 @@
+---
+categories: [ukulele-2]
+---
+
 # Ukulele Self-Study Program: The Roy Smeck Method
 
 ## Beginner Phase (Weeks 1-4)

diff --git a/_posts/2024-07-12-ukulele.md b/_posts/2024-07-12-ukulele.md
@@ -1,5 +1,6 @@
 ---
 title: Ukulele
+categories: [ukulele]
 ---
 
 2013 Hora soprano

diff --git a/_posts/2024-11-04-zemfira.md b/_posts/2024-11-04-zemfira.md
@@ -1,3 +1,7 @@
+---
+categories: [zemfira]
+---
+
 01. Бесконечность
 02. Трафик
 03. Кто?

diff --git a/_posts/2024-11-05-music-theory.md b/_posts/2024-11-05-music-theory.md
@@ -1,5 +1,6 @@
 ---
 title: Music theory
+categories: [music-theory]
 ---
 
 ## Music theory

diff --git a/_posts/2025-01-05-taijiquan-40-levels.md b/_posts/2025-01-05-taijiquan-40-levels.md
@@ -1,3 +1,7 @@
+---
+categories: [taijiquan-40-levels]
+---
+
 Here’s a **structured 40-level self-training routine** for progressing
 from complete beginner to a **Chen-style Taijiquan master**.
 The path is divided into **five phases** (8 levels each),

diff --git a/_posts/2025-01-06-taijiquan.md b/_posts/2025-01-06-taijiquan.md
@@ -1,3 +1,7 @@
+---
+categories: [taijiquan]
+---
+
 ## Term
 Taijiquan - is an ancient Chinese martial art. Initially developed for combat and self-defense, for most practitioners it has evolved into a sport and form of exercise.
 

diff --git a/_posts/2025-01-28-hus.md b/_posts/2025-01-28-hus.md
@@ -1 +1,5 @@
+---
+categories: [hus]
+---
+
 * https://www.rutledalelektro.no/
diff --git a/_posts/2025-04-04-chen.md b/_posts/2025-04-04-chen.md
@@ -1,3 +1,7 @@
+---
+categories: [chen]
+---
+
 # Comprehensive Self-Study Program for Chen-Style Taijiquan
 
 ## Introduction

diff --git a/_posts/2025-04-05-mltt-72.md b/_posts/2025-04-05-mltt-72.md
@@ -1,3 +1,7 @@
+---
+categories: [mltt-72]
+---
+
 To start learning MLTT-72 (Martin-Löf Type Theory from 1972), you'll need a minimal foundation in:
 
 1. Basic mathematical logic - understanding of logical connectives, quantifiers, and proof techniques

diff --git a/_posts/2025-04-05-mtg-pauper.md b/_posts/2025-04-05-mtg-pauper.md
@@ -1,3 +1,7 @@
+---
+categories: [mtg-pauper]
+---
+
 The idea behind **Pauper** is simple but brilliant:  
 **"Only common cards allowed."**
 

diff --git a/_posts/2025-04-05-organizing-knowledge.md b/_posts/2025-04-05-organizing-knowledge.md
@@ -1,3 +1,7 @@
+---
+categories: [organizing-knowledge]
+---
+
 
 ---
 

diff --git a/index.md b/index.md
@@ -37,3 +37,4 @@ Universe and Everything
 
 Misc
 * [Latest posts](/pages/blog)
+* [Categories](/pages/categories)
diff --git a/pages/categories.md b/pages/categories.md
@@ -0,0 +1,13 @@
+---
+title: categories
+---
+
+<h1>Categories</h1>
+{% for category in site.categories %}
+## {{ category[0] }}
+<ul>
+  {% for post in category[1] %}
+  <li><a href="{{ post.url }}">{{ post.title }}</a></li>
+  {% endfor %}
+</ul>
+{% endfor %}
-Original file line number
+Diff line change
@@ -1,3 +1,7 @@
+    ---
+    categories: [organizing-knowledge]
+    ---
     ---
@@ Expand Down @@
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Expand Up		@@ -37,3 +37,4 @@ Universe and Everything

		Misc
		* [Latest posts](/pages/blog)
		* [Categories](/pages/categories)