feat: added run sh and makefile scripts

C/1dvelocitysimulator/Makefile

@@ -0,0 +1,19 @@
+CC := gcc
+CFLAGS := -O2 -Wall -Wextra -std=c11 -D_DEFAULT_SOURCE
+LDFLAGS :=
+
+SRC := main.c
+BIN := 1dvelocitysimulator
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

C/1dvelocitysimulator/main.c

@@ -1,7 +1,24 @@
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
+
+#ifdef _WIN32
 #include <windows.h>
+#define SLEEP_MS(ms) Sleep(ms)
+#define CLEAR_SCREEN() system("CLS")
+#define PAUSE() system("PAUSE")
+#else
+#include <unistd.h>
+#define SLEEP_MS(ms) usleep((ms) * 1000U)
+#define CLEAR_SCREEN() system("clear")
+#define PAUSE()                                                                                    \
+    do                                                                                             \
+    {                                                                                              \
+        printf("Press Enter to continue...");                                                      \
+        getchar();                                                                                 \
+    } while (0)
+#endif
+
 #define LINE_LENGTH 100
 
 void C()
@@ -13,27 +30,27 @@ void C()
 void printAcceleration(int acceleration)
 {
     printf("The value of acceleration is: %d\n", acceleration);
-    system("PAUSE");
+    PAUSE();
     return;
 }
 
-void pauseSystem() { system("PAUSE"); }
+void pauseSystem() { PAUSE(); }
 
 void clearScreen()
 {
-    system("CLS");
+    CLEAR_SCREEN();
     return;
 }
 
 void pauseForASecond()
 {
-    Sleep(1000);
+    SLEEP_MS(1000);
     return;
 }
 
 void pauseForGivenTime(float given_time)
 {
-    Sleep(fabs(given_time * 1000));
+    SLEEP_MS((unsigned int)fabs(given_time * 1000));
     return;
 }
 

C/1dvelocitysimulator/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./1dvelocitysimulator

C/fps/run.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -e
+# Install dependencies
+if command -v apt-get &>/dev/null; then
+    sudo apt-get install -y freeglut3-dev libglu1-mesa-dev libsdl2-dev
+elif command -v pacman &>/dev/null; then
+    pacman -Q freeglut sdl2 &>/dev/null || sudo pacman -S --noconfirm freeglut sdl2
+elif command -v dnf &>/dev/null; then
+    sudo dnf install -y freeglut-devel mesa-libGLU-devel SDL2-devel
+fi
+make
+./fps_demo

C/imageViewer/run.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -e
+# Install dependencies
+if command -v apt-get &>/dev/null; then
+    sudo apt-get install -y libsdl2-dev libsdl2-image-dev
+elif command -v pacman &>/dev/null; then
+    pacman -Q sdl2 sdl2_image &>/dev/null || sudo pacman -S --noconfirm sdl2 sdl2_image
+elif command -v dnf &>/dev/null; then
+    sudo dnf install -y SDL2-devel SDL2_image-devel
+fi
+make
+echo "Usage: ./imageviewer <image_file>"
+if [[ $# -gt 0 ]]; then
+    ./imageviewer "$@"
+fi

C/lichess_random_engine/run.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -e
+make
+echo "Usage: ./random_engine --fen \"<FEN>\" move1 move2 ..."
+echo "       ./random_engine --fen \"<FEN>\" --explain move1 ..."

C/misc/Makefile

@@ -0,0 +1,19 @@
+CC := gcc
+CFLAGS := -O2 -Wall -Wextra -std=c11
+LDFLAGS :=
+
+SRC := generatingWordsEndingWIthalka.c
+BIN := generating_words
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

C/misc/randomJPG/run.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -e
+# Install dependencies
+if command -v apt-get &>/dev/null; then
+    sudo apt-get install -y libjpeg-dev
+elif command -v pacman &>/dev/null; then
+    pacman -Q libjpeg-turbo &>/dev/null || sudo pacman -S --noconfirm libjpeg-turbo
+elif command -v dnf &>/dev/null; then
+    sudo dnf install -y libjpeg-turbo-devel
+fi
+make
+./generate_images

C/misc/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./generating_words

C/misc/split/Makefile

@@ -0,0 +1,19 @@
+CC := gcc
+CFLAGS := -O2 -Wall -Wextra -std=c11
+LDFLAGS :=
+
+SRC := main.c
+BIN := split
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

C/misc/split/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./split

C/opening_learner/run.sh

@@ -14,7 +14,7 @@ if ! command -v sdl2-config >/dev/null 2>&1; then
         sudo apt-get install -y libsdl2-dev
         ;;
       arch|manjaro|endeavouros)
-        sudo pacman -Syu --noconfirm sdl2
+        pacman -Q sdl2 &>/dev/null || sudo pacman -S --noconfirm sdl2
         ;;
       fedora)
         sudo dnf install -y SDL2-devel

C/scrapeWebsite/Makefile

@@ -0,0 +1,19 @@
+CC := gcc
+CFLAGS := -O2 -Wall -Wextra -std=c11 -D_DEFAULT_SOURCE $(shell pkg-config --cflags libcurl libxml-2.0 2>/dev/null)
+LDFLAGS := $(shell pkg-config --libs libcurl libxml-2.0 2>/dev/null)
+
+SRC := scrape.c
+BIN := scrape
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

C/scrapeWebsite/run.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -e
+# Install dependencies
+if command -v apt-get &>/dev/null; then
+    sudo apt-get install -y libcurl4-openssl-dev libxml2-dev
+elif command -v pacman &>/dev/null; then
+    pacman -Q curl libxml2 &>/dev/null || sudo pacman -S --noconfirm curl libxml2
+elif command -v dnf &>/dev/null; then
+    sudo dnf install -y libcurl-devel libxml2-devel
+fi
+make
+./scrape

C/tests/Makefile

@@ -0,0 +1,19 @@
+CC := gcc
+CFLAGS := -O2 -Wall -Wextra -std=c11 -D_DEFAULT_SOURCE
+LDFLAGS :=
+
+SRC := generatingPolishLettersOnWindowsTerminal.c
+BIN := polish_letters
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

C/tests/generatingPolishLettersOnWindowsTerminal.c

@@ -1,10 +1,17 @@
 #include <stdio.h>
 #include <stdlib.h>
-#include <windows.h>
 
-int main()
+#ifdef _WIN32
+#include <windows.h>
+#define SLEEP_S(s) Sleep((s) * 1000)
+#else
+#include <unistd.h>
+#define SLEEP_S(s) sleep(s)
+#endif
+
+int main(void)
 {
     printf("Henlo\n");
-    sleep(20);
+    SLEEP_S(20);
     return 0;
 }

C/tests/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./polish_letters

C/vocabulary_curve/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./vocabulary_curve

C/websocketServer/Makefile

@@ -0,0 +1,19 @@
+CC := gcc
+CFLAGS := -O2 -Wall -Wextra -std=c11 $(shell pkg-config --cflags libwebsockets 2>/dev/null)
+LDFLAGS := $(shell pkg-config --libs libwebsockets 2>/dev/null)
+
+SRC := main.c
+BIN := websocket_server
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

C/websocketServer/run.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -e
+# Install dependencies
+if command -v pacman &>/dev/null; then
+    pacman -Q libwebsockets &>/dev/null || sudo pacman -S --noconfirm libwebsockets
+elif command -v apt-get &>/dev/null; then
+    sudo apt-get install -y libwebsockets-dev
+elif command -v dnf &>/dev/null; then
+    sudo dnf install -y libwebsockets-devel
+elif command -v zypper &>/dev/null; then
+    sudo zypper install -y libwebsockets-devel
+else
+    echo "Could not detect package manager. Please install libwebsockets manually." >&2
+    exit 1
+fi
+make
+./websocket_server

CPP/miscelanious/Makefile

@@ -0,0 +1,30 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+BINS := howOftenDoesCharOccur quickchallenges reverseString solveQuadraticEquation
+
+all: $(BINS)
+
+howOftenDoesCharOccur: howOftenDoesCharOccur.cpp
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+quickchallenges: quickchallenges.cpp
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+reverseString: reverseString.cpp
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+solveQuadraticEquation: solveQuadraticEquation.cpp
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: all
+	./howOftenDoesCharOccur
+	./quickchallenges
+	./reverseString
+	./solveQuadraticEquation
+
+clean:
+	rm -f $(BINS)
+
+.PHONY: all run clean

CPP/miscelanious/Pi/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS := -lm
+
+SRC := main.cpp
+BIN := pi
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/Pi/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./pi

CPP/miscelanious/brydz/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := brydz.cpp
+BIN := brydz
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/brydz/brydz.cpp

@@ -4,7 +4,7 @@
 const std::vector<std::string> ATUTY = {"BA", "Trefl", "Karo", "Kier", "Pik"};
 const bool A_ID = 0;
 const bool B_ID = 1;
-const std::vector<std::string> GRACZE = {};
+const std::vector<std::string> GRACZE = {"Gracz A", "Gracz B"};
 const std::vector<std::string> PO_PARTII{"Nikt", GRACZE[A_ID], GRACZE[B_ID],
                                          "Obaj Gracze"};
 const int DOMYSLNE_LEWY = 6;

CPP/miscelanious/brydz/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./brydz

CPP/miscelanious/calculateShotsDarts/Makefile

@@ -0,0 +1,20 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+# main.cpp includes basic.cpp directly
+SRC := main.cpp
+BIN := darts
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/calculateShotsDarts/basic.cpp

@@ -4,7 +4,6 @@
 #include <iostream>
 #include <string>
 #include <vector>
-#include <windows.h>
 
 void print(const std::string s) { std::cout << s << std::endl; }
 void printErrorStringContainsNotNumber(const std::string s) {

CPP/miscelanious/calculateShotsDarts/main.cpp

@@ -63,8 +63,78 @@ bool validInput(const std::string s) {
   return 1;
 }
 
-// cppcheck-suppress missingReturn
-std::vector<int> requiredShoots(const int pointsLeft) {}
+// Darts checkout finder: find combinations of up to 3 darts that reduce
+// pointsLeft to exactly 0, finishing on a double (standard 501 rules).
+std::vector<int> requiredShoots(const int pointsLeft) {
+  // All valid dart scores with labels
+  std::vector<std::pair<int, std::string>> all_darts;
+  for (int i = MIN_SPOT; i <= MAX_SPOT; i++)
+    all_darts.push_back({i, std::to_string(i)});
+  all_darts.push_back({25, "Bull"});
+  for (int i = MIN_SPOT; i <= MAX_SPOT; i++)
+    all_darts.push_back({i * 2, "D" + std::to_string(i)});
+  all_darts.push_back({50, "D-Bull"});
+  for (int i = MIN_SPOT; i <= MAX_SPOT; i++)
+    all_darts.push_back({i * 3, "T" + std::to_string(i)});
+
+  // Doubles only (valid finishing darts)
+  std::vector<std::pair<int, std::string>> doubles;
+  for (int i = MIN_SPOT; i <= MAX_SPOT; i++)
+    doubles.push_back({i * 2, "D" + std::to_string(i)});
+  doubles.push_back({50, "D-Bull"});
+
+  std::vector<std::vector<std::string>> checkouts;
+  const int MAX_RESULTS = 5;
+
+  // 1-dart checkouts
+  for (auto &d : doubles)
+    if (d.first == pointsLeft)
+      checkouts.push_back({d.second});
+
+  // 2-dart checkouts
+  for (auto &d1 : all_darts) {
+    for (auto &d2 : doubles) {
+      if (d1.first + d2.first == pointsLeft) {
+        checkouts.push_back({d1.second, d2.second});
+        if ((int)checkouts.size() >= MAX_RESULTS)
+          goto done;
+      }
+    }
+  }
+
+  // 3-dart checkouts (stop early once we have enough results)
+  for (auto &d1 : all_darts) {
+    for (auto &d2 : all_darts) {
+      for (auto &d3 : doubles) {
+        if (d1.first + d2.first + d3.first == pointsLeft) {
+          checkouts.push_back({d1.second, d2.second, d3.second});
+          if ((int)checkouts.size() >= MAX_RESULTS)
+            goto done;
+        }
+      }
+    }
+  }
+done:
+  if (checkouts.empty()) {
+    print("No checkout possible for " + std::to_string(pointsLeft) +
+          " points.");
+    return {};
+  }
+
+  print("Possible checkouts (showing up to " + std::to_string(MAX_RESULTS) +
+        "):");
+  std::vector<int> firstCheckout;
+  for (auto &combo : checkouts) {
+    std::string line;
+    for (unsigned int i = 0; i < combo.size(); i++) {
+      if (i > 0)
+        line += " \u2192 ";
+      line += combo[i];
+    }
+    print(line);
+  }
+  return firstCheckout;
+}
 
 int main() {
   print("Enter points left: ");

CPP/miscelanious/calculateShotsDarts/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./darts

CPP/miscelanious/findIntegerPercentageValue/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := main.cpp
+BIN := find_percentage
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/findIntegerPercentageValue/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./find_percentage

CPP/miscelanious/howManyValidISBNNumbersAreThere/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := 11.cpp
+BIN := isbn_counter
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/howManyValidISBNNumbersAreThere/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./isbn_counter

CPP/miscelanious/markovChainGenerator/Makefile

@@ -0,0 +1,20 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+# main.cpp includes basic.cpp directly
+SRC := main.cpp
+BIN := markov
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/markovChainGenerator/main.cpp

@@ -9,21 +9,20 @@
 struct wordOccurences {
   std::string word;
   int occurences;
-}
+};
 
 struct previousWords {
   std::string word;
   std::vector<wordOccurences> previousWords;
 };
 
-struct wordProbabiliy {
+struct wordProbability {
   std::string previousWord;
   std::string nextWord;
   float probability;
-}
+};
 
-bool validInput(const std::string userInput)
-{
+bool validInput(const std::string userInput) {
   if (stringContainsNumbers(userInput))
     return 0;
   return 1;
@@ -61,8 +60,10 @@ int wordRepeats(const std::vector<previousWords> wordsList,
 bool alreadyExists(const std::vector<previousWords> wordsList,
                    const std::string s) {
   for (unsigned int i = 0; i < wordsList.size(); i++) {
-                if(s == wordsList.previousWOrds
+    if (s == wordsList.at(i).word)
+      return true;
   }
+  return false;
 }
 
 std::vector<previousWords>
@@ -73,7 +74,7 @@ getWordsAndTheirPrevious(const std::vector<std::string> words) {
     previousWords temp;
     temp.word = words.at(i);
     wordOccurences tempTwo;
-                tempTwo.word = words.at(i - 1));
+    tempTwo.word = words.at(i - 1);
     tempTwo.occurences = 1;
     temp.previousWords.push_back(tempTwo);
     int position = wordRepeats(wordsList, temp.word);
@@ -81,8 +82,7 @@ getWordsAndTheirPrevious(const std::vector<std::string> words) {
       wordsList.push_back(temp);
     } else {
 
-                  wordsList.at(position).previousWords.push_back(
-                      temp.previousWords.at(0));
+      wordsList.at(position).previousWords.push_back(temp.previousWords.at(0));
     }
   }
   return wordsList;
@@ -92,7 +92,7 @@ void printPreviousWord(const previousWords word) {
   std::cout << "The word is \"" << word.word
             << "\" Words before it are: " << std::endl;
   for (unsigned int i = 0; i < word.previousWords.size(); i++) {
-    print(word.previousWords.at(i));
+    print(word.previousWords.at(i).word);
   }
 }
 
@@ -105,10 +105,23 @@ void printPreviousWordsVector(const std::vector<previousWords> v) {
 std::vector<wordProbability>
 getWordProbability(const std::vector<previousWords> wordsList) {
   std::vector<wordProbability> probalityVector;
-  for (unsigned int i = 0; i - 1 < wordsList.size(); i++) {
-    pro
+  for (unsigned int i = 0; i < wordsList.size(); i++) {
+    int total = 0;
+    for (unsigned int j = 0; j < wordsList.at(i).previousWords.size(); j++)
+      total += wordsList.at(i).previousWords.at(j).occurences;
+    for (unsigned int j = 0; j < wordsList.at(i).previousWords.size(); j++) {
+      wordProbability wp;
+      wp.previousWord = wordsList.at(i).previousWords.at(j).word;
+      wp.nextWord = wordsList.at(i).word;
+      wp.probability =
+          total > 0
+              ? (float)wordsList.at(i).previousWords.at(j).occurences / total
+              : 0.0f;
+      probalityVector.push_back(wp);
     }
   }
+  return probalityVector;
+}
 
 int main() {
   std::string userInput;

CPP/miscelanious/markovChainGenerator/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./markov

CPP/miscelanious/mutiplicationWithoutStar/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := multiplication.cpp
+BIN := multiplication
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/mutiplicationWithoutStar/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./multiplication

CPP/miscelanious/randomDevice/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := main.cpp
+BIN := random_device_demo
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/randomDevice/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./random_device_demo

CPP/miscelanious/run.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -e
+make
+./howOftenDoesCharOccur
+./quickchallenges
+./reverseString
+./solveQuadraticEquation

CPP/miscelanious/tictactoe/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := tictactoe.cpp
+BIN := tictactoe
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/tictactoe/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./tictactoe

CPP/miscelanious/tierListConverter/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := tierListConverter.cpp
+BIN := tier_list_converter
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/tierListConverter/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./tier_list_converter

CPP/miscelanious/xGoesTo0/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := xgoes.cpp
+BIN := xgoes
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/miscelanious/xGoesTo0/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./xgoes

CPP/miscelanious/yousuckatcards/Bernouli/Makefile

@@ -0,0 +1,22 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+BINS := bernouli test
+
+all: $(BINS)
+
+bernouli: bernouli.cpp
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+test: test.cpp
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: all
+	./bernouli
+	./test
+
+clean:
+	rm -f $(BINS)
+
+.PHONY: all run clean

CPP/miscelanious/yousuckatcards/Bernouli/run.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -e
+make
+./bernouli
+./test

CPP/miscelanious/yousuckatcards/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./a.out

CPP/tests/Makefile

@@ -0,0 +1,19 @@
+CXX := g++
+CXXFLAGS := -O2 -Wall -Wextra -std=c++17
+LDFLAGS :=
+
+SRC := howCppHandlesDivision.cpp
+BIN := division_test
+
+all: $(BIN)
+
+$(BIN): $(SRC)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+run: $(BIN)
+	./$(BIN)
+
+clean:
+	rm -f $(BIN)
+
+.PHONY: all run clean

CPP/tests/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+make
+./division_test

python_pkg/anki_decks/polish_gminy/run.sh

@@ -21,8 +21,7 @@ echo "Activating virtual environment..."
 source "$VENV_DIR/bin/activate"
 
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas requests shapely
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas requests shapely
 
 cd "$SCRIPT_DIR"
 

python_pkg/anki_decks/polish_license_plates/run.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+_pip_sync() { local r="$1" h; h=$(md5sum "$r"|cut -d' ' -f1); local lf="$VENV/.req_${h:0:8}.lock"; [[ -f "$lf" ]] && return; "$VENV/bin/pip" install -r "$r" -q && touch "$lf"; }
+_pip_sync "$REPO_ROOT/requirements.txt"
+"$VENV/bin/python" "$SCRIPT_DIR/polish_license_plates_anki.py" "$@"

python_pkg/anki_decks/polish_powiaty/run.sh

@@ -19,8 +19,7 @@ echo "Activating virtual environment..."
 source "$VENV_DIR/bin/activate"
 
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas
 
 cd "$SCRIPT_DIR"
 

python_pkg/anki_decks/run.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+_pip_sync() { local r="$1" h; h=$(md5sum "$r"|cut -d' ' -f1); local lf="$VENV/.req_${h:0:8}.lock"; [[ -f "$lf" ]] && return; "$VENV/bin/pip" install -r "$r" -q && touch "$lf"; }
+_pip_sync "$REPO_ROOT/requirements.txt"
+
+# Run all deck generators in sequence
+for deck_dir in "$SCRIPT_DIR"/*/; do
+    if [[ -f "$deck_dir/run.sh" ]]; then
+        echo "==> Building deck: $(basename "$deck_dir")"
+        bash "$deck_dir/run.sh"
+    fi
+done

python_pkg/anki_decks/warsaw_bridges/run.sh

@@ -19,8 +19,7 @@ echo "Activating virtual environment..."
 source "$VENV_DIR/bin/activate"
 
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas requests shapely
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas requests shapely
 
 cd "$SCRIPT_DIR"
 

python_pkg/anki_decks/warsaw_districts/run.sh

@@ -22,8 +22,7 @@ source "$VENV_DIR/bin/activate"
 
 # Install dependencies
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas
 
 # Export preview images
 echo

python_pkg/anki_decks/warsaw_landmarks/run.sh

@@ -19,8 +19,7 @@ echo "Activating virtual environment..."
 source "$VENV_DIR/bin/activate"
 
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas requests shapely
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas requests shapely
 
 cd "$SCRIPT_DIR"
 

python_pkg/anki_decks/warsaw_metro/run.sh

@@ -19,8 +19,7 @@ echo "Activating virtual environment..."
 source "$VENV_DIR/bin/activate"
 
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas requests shapely
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas requests shapely
 
 cd "$SCRIPT_DIR"
 

python_pkg/anki_decks/warsaw_osiedla/run.sh

@@ -19,8 +19,7 @@ echo "Activating virtual environment..."
 source "$VENV_DIR/bin/activate"
 
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas requests shapely
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas requests shapely
 
 cd "$SCRIPT_DIR"
 

python_pkg/anki_decks/warsaw_streets/run.sh

@@ -19,8 +19,7 @@ echo "Activating virtual environment..."
 source "$VENV_DIR/bin/activate"
 
 echo "Installing dependencies..."
-pip install --quiet --upgrade pip
-pip install --quiet matplotlib genanki geopandas requests shapely
+pip show genanki &>/dev/null || pip install --quiet matplotlib genanki geopandas requests shapely
 
 cd "$SCRIPT_DIR"
 

python_pkg/brightness_controller/run.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+_pip_sync() { local r="$1" h; h=$(md5sum "$r"|cut -d' ' -f1); local lf="$VENV/.req_${h:0:8}.lock"; [[ -f "$lf" ]] && return; "$VENV/bin/pip" install -r "$r" -q && touch "$lf"; }
+_pip_sync "$REPO_ROOT/requirements.txt"
+"$VENV/bin/python" "$SCRIPT_DIR/brightness_controller.py" "$@"

python_pkg/download_cats/requirements.txt

@@ -1,4 +1 @@
-json
-os
-pathlib
 requests

python_pkg/download_cats/run.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+_pip_sync() { local r="$1" h; h=$(md5sum "$r"|cut -d' ' -f1); local lf="$VENV/.req_${h:0:8}.lock"; [[ -f "$lf" ]] && return; "$VENV/bin/pip" install -r "$r" -q && touch "$lf"; }
+_pip_sync "$SCRIPT_DIR/requirements.txt"
+"$VENV/bin/python" "$SCRIPT_DIR/generate_cats.py" "$@"

python_pkg/keyboard_coop/run.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# pygame has no prebuilt wheel for Python 3.14+, use the system package
+pacman -Q python-pygame &>/dev/null || sudo pacman -S --noconfirm python-pygame
+
+# Use a local venv with --system-site-packages so it can see system pygame
+VENV="$SCRIPT_DIR/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV" --system-site-packages
+"$VENV/bin/python" "$SCRIPT_DIR/main.py" "$@"

python_pkg/lichess_bot/run.sh

@@ -67,4 +67,4 @@ echo "Starting Lichess bot..."
 echo "Tip: Open another terminal to watch logs; press Ctrl+C here to stop."
 
 trap 'echo; echo "Stopping bot (Ctrl+C)."' INT
-"$PY" -m PYTHON.lichess_bot.main "$@"
+"$PY" -m python_pkg.lichess_bot.main "$@"

python_pkg/mock_server/run.sh

@@ -1,2 +1,17 @@
-#!/bin/sh
-mitmdump -s mock_server.py
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# Use a local venv with pip-installed mitmproxy (not in Arch repos)
+LVENV="$SCRIPT_DIR/.venv"
+if [[ ! -d "$LVENV" ]]; then
+    echo "Creating local venv for mitmproxy..."
+    python3 -m venv "$LVENV"
+fi
+if ! "$LVENV/bin/python" -c "import mitmproxy" &>/dev/null; then
+    echo "Installing mitmproxy..."
+    "$LVENV/bin/pip" install mitmproxy -q
+fi
+
+cd "$SCRIPT_DIR"
+"$LVENV/bin/mitmdump" --scripts mock_server.py "$@"

python_pkg/music_gen/run.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+"$VENV/bin/pip" show torch &>/dev/null || "$VENV/bin/pip" install torch transformers numpy scipy bark -q
+echo "Loading models (this may take a minute on first run)..."
+export PYTHONUNBUFFERED=1
+"$VENV/bin/python" "$SCRIPT_DIR/music_generator.py" "$@"

python_pkg/praca_magisterska_video/run.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+"$VENV/bin/pip" show moviepy &>/dev/null || "$VENV/bin/pip" install moviepy numpy -q
+export PYTHONUNBUFFERED=1
+# Run all visualizations
+echo "==> Rendering visualize_q02 (Dijkstra/Bellman-Ford/A*)"
+"$VENV/bin/python" "$SCRIPT_DIR/visualize_q02.py" "$@"
+echo "==> Rendering visualize_q23"
+"$VENV/bin/python" "$SCRIPT_DIR/visualize_q23.py" "$@"
+echo "==> Rendering visualize_q24"
+"$VENV/bin/python" "$SCRIPT_DIR/visualize_q24.py" "$@"
+echo "Done."

python_pkg/randomize_numbers/run.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+"$SCRIPT_DIR/../../.venv/bin/python" "$SCRIPT_DIR/random_digits.py" "$@"

python_pkg/repo_explorer/repo_explorer.py

@@ -0,0 +1,594 @@
+#!/usr/bin/env python3
+"""Repo Explorer - browse and run any project in the monorepo via a GUI."""
+
+from __future__ import annotations
+
+import contextlib
+import fcntl
+import os
+from pathlib import Path
+import pty
+import re
+import select
+import shutil
+import subprocess
+import threading
+import tkinter as tk
+from tkinter import font, ttk
+from typing import cast
+
+# Strip ANSI/VT100 escape sequences so the Text widget shows plain text
+_ANSI_ESCAPE = re.compile(r"\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])")
+
+
+def _strip_ansi(text: str) -> str:
+    return _ANSI_ESCAPE.sub("", text)
+
+
+def _find_terminal() -> list[str]:
+    """Return argv prefix for the first available terminal emulator."""
+    candidates = [
+        ("kitty", ["kitty", "--"]),
+        ("alacritty", ["alacritty", "-e"]),
+        ("konsole", ["konsole", "-e"]),
+        ("gnome-terminal", ["gnome-terminal", "--"]),
+        ("xfce4-terminal", ["xfce4-terminal", "-x"]),
+        ("xterm", ["xterm", "-e"]),
+    ]
+    for exe, args in candidates:
+        if shutil.which(exe):
+            return args
+    return []
+
+
+REPO_ROOT = Path(__file__).resolve().parent.parent.parent
+
+IGNORED_DIRS = {
+    ".git",
+    ".venv",
+    "__pycache__",
+    "node_modules",
+    "build",
+    "target",
+    ".mypy_cache",
+    ".ruff_cache",
+}
+
+
+# ---------------------------------------------------------------------------
+# Discovery helpers
+# ---------------------------------------------------------------------------
+
+
+def _is_ignored(path: Path) -> bool:
+    return any(part in IGNORED_DIRS for part in path.parts)
+
+
+def find_projects(root: Path) -> list[dict[str, object]]:
+    """Return every directory under *root* that contains a run.sh."""
+    projects: list[dict[str, object]] = []
+    for run_sh in sorted(root.rglob("run.sh")):
+        if _is_ignored(run_sh):
+            continue
+        proj_dir = run_sh.parent
+        rel = proj_dir.relative_to(root)
+        projects.append({"path": proj_dir, "rel": rel, "name": proj_dir.name})
+    return projects
+
+
+def _desc_from_run_sh(run_sh: Path) -> str:
+    """Extract leading comment block from run.sh as a description."""
+    comments: list[str] = []
+    for line in run_sh.read_text(errors="replace").splitlines():
+        s = line.strip()
+        if s.startswith("#!"):
+            continue
+        if s.startswith("#"):
+            comments.append(s[1:].strip())
+        elif comments:
+            break
+    return " ".join(comments)[:300] if comments else ""
+
+
+def get_description(project_path: Path) -> str:
+    """Return a short description from README.md or leading run.sh comments."""
+    for readme_name in ("README.md", "README.txt", "readme.md"):
+        readme = project_path / readme_name
+        if readme.exists():
+            text = readme.read_text(errors="replace")
+            for line in text.splitlines():
+                stripped = line.strip().lstrip("#").strip()
+                if stripped:
+                    return stripped[:300]
+
+    run_sh = project_path / "run.sh"
+    if run_sh.exists():
+        desc = _desc_from_run_sh(run_sh)
+        if desc:
+            return desc
+
+    return "(no description)"
+
+
+# ---------------------------------------------------------------------------
+# Main application
+# ---------------------------------------------------------------------------
+
+
+class RepoExplorer(tk.Tk):
+    """Main application window for browsing and running monorepo projects."""
+
+    # Catppuccin Mocha palette
+    _BG = "#1e1e2e"
+    _SURFACE = "#313244"
+    _TEXT = "#cdd6f4"
+    _TEXT_DIM = "#6c7086"
+    _ACCENT = "#89b4fa"
+    _GREEN = "#a6e3a1"
+    _RED = "#f38ba8"
+    _TERMINAL_BG = "#11111b"
+    _MAX_EXPAND = 60  # expand tree groups automatically when <= this many results
+    _IDLE_FLUSH_TICKS = 2  # flush partial PTY buffer after this many 50 ms timeouts
+
+    def __init__(self) -> None:
+        """Initialise the window, build the UI and load all projects."""
+        super().__init__()
+        self.title("Repo Explorer")
+        self.geometry("1200x750")
+        self.configure(bg=self._BG)
+        self._proc: subprocess.Popen[bytes] | None = None
+        self._master_fd: int | None = None
+        self._projects: list[dict[str, object]] = []
+        self._terminal_args = _find_terminal()
+        self._build_style()
+        self._build_ui()
+        self._load_projects()
+
+    # ------------------------------------------------------------------
+    # UI construction
+    # ------------------------------------------------------------------
+
+    def _build_style(self) -> None:
+        s = ttk.Style(self)
+        s.theme_use("clam")
+        opts: dict[str, object]
+        opts = {
+            "background": self._BG,
+            "foreground": self._TEXT,
+            "fieldbackground": self._BG,
+            "font": ("Monospace", 10),
+            "rowheight": 24,
+        }
+        s.configure("Treeview", **opts)
+        s.configure(
+            "Treeview.Heading", background=self._SURFACE, foreground=self._ACCENT
+        )
+        s.map(
+            "Treeview",
+            background=[("selected", self._SURFACE)],
+            foreground=[("selected", self._ACCENT)],
+        )
+        s.configure("TFrame", background=self._BG)
+        s.configure("TLabel", background=self._BG, foreground=self._TEXT)
+        s.configure(
+            "TButton", background=self._SURFACE, foreground=self._TEXT, padding=4
+        )
+        s.map(
+            "TButton",
+            background=[("active", "#45475a"), ("disabled", self._BG)],
+            foreground=[("disabled", self._TEXT_DIM)],
+        )
+        s.configure(
+            "TEntry",
+            fieldbackground=self._SURFACE,
+            foreground=self._TEXT,
+            insertcolor=self._TEXT,
+        )
+        s.configure("TPanedwindow", background=self._BG)
+        s.configure("TSeparator", background=self._SURFACE)
+
+    def _build_ui(self) -> None:
+        paned = ttk.PanedWindow(self, orient=tk.HORIZONTAL)
+        paned.pack(fill=tk.BOTH, expand=True, padx=6, pady=6)
+
+        paned.add(self._build_left(paned), weight=1)
+        paned.add(self._build_right(paned), weight=3)
+
+    def _build_left(self, parent: ttk.PanedWindow) -> ttk.Frame:
+        frame = ttk.Frame(parent)
+
+        # Search bar
+        sf = ttk.Frame(frame)
+        sf.pack(fill=tk.X, padx=4, pady=(4, 2))
+        ttk.Label(sf, text="Search:").pack(side=tk.LEFT)
+        self._search_var = tk.StringVar()
+        self._search_var.trace_add("write", lambda *_: self._filter_tree())
+        ttk.Entry(sf, textvariable=self._search_var).pack(
+            side=tk.LEFT, fill=tk.X, expand=True, padx=(4, 0)
+        )
+
+        # Project count label
+        self._count_var = tk.StringVar(value="")
+        ttk.Label(
+            frame,
+            textvariable=self._count_var,
+            foreground=self._TEXT_DIM,
+            font=("sans-serif", 8),
+        ).pack(anchor=tk.W, padx=6)
+
+        # Tree + scrollbar
+        tree_frame = ttk.Frame(frame)
+        tree_frame.pack(fill=tk.BOTH, expand=True, padx=4, pady=4)
+        self._tree = ttk.Treeview(tree_frame, show="tree", selectmode="browse")
+        scroll = ttk.Scrollbar(tree_frame, command=self._tree.yview)
+        self._tree.configure(yscrollcommand=scroll.set)
+        scroll.pack(side=tk.RIGHT, fill=tk.Y)
+        self._tree.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
+
+        self._tree.bind("<<TreeviewSelect>>", self._on_select)
+        self._tree.bind("<Double-1>", lambda _: self._run_embedded())
+        self._tree.bind("<Return>", lambda _: self._run_embedded())
+
+        return frame
+
+    def _build_right(self, parent: ttk.PanedWindow) -> ttk.Frame:
+        frame = ttk.Frame(parent)
+
+        # Description section
+        info_frame = ttk.Frame(frame)
+        info_frame.pack(fill=tk.X, padx=6, pady=(4, 0))
+
+        ttk.Label(
+            info_frame,
+            text="Project",
+            font=("sans-serif", 11, "bold"),
+            foreground=self._ACCENT,
+        ).pack(anchor=tk.W)
+        self._title_var = tk.StringVar(value="Select a project from the list")
+        ttk.Label(
+            info_frame,
+            textvariable=self._title_var,
+            font=("Monospace", 9),
+            foreground=self._TEXT_DIM,
+        ).pack(anchor=tk.W)
+
+        self._desc_var = tk.StringVar(value="")
+        ttk.Label(
+            info_frame,
+            textvariable=self._desc_var,
+            wraplength=700,
+            justify=tk.LEFT,
+            foreground=self._GREEN,
+        ).pack(anchor=tk.W, pady=(2, 0))
+
+        ttk.Separator(frame, orient=tk.HORIZONTAL).pack(fill=tk.X, padx=6, pady=4)
+
+        # Args + buttons row
+        ctrl_frame = ttk.Frame(frame)
+        ctrl_frame.pack(fill=tk.X, padx=6, pady=(0, 4))
+
+        ttk.Label(ctrl_frame, text="Args:").pack(side=tk.LEFT)
+        self._args_var = tk.StringVar()
+        ttk.Entry(ctrl_frame, textvariable=self._args_var, width=30).pack(
+            side=tk.LEFT, padx=(4, 12)
+        )
+
+        self._run_btn = ttk.Button(
+            ctrl_frame,
+            text="▶  Run here",
+            command=self._run_embedded,
+            state=tk.DISABLED,
+        )
+        self._run_btn.pack(side=tk.LEFT, padx=(0, 4))
+
+        term_label = self._terminal_args[0] if self._terminal_args else "terminal"
+        self._term_btn = ttk.Button(
+            ctrl_frame,
+            text=f"⧉  Open in {term_label}",
+            command=self._run_in_terminal,
+            state=tk.DISABLED,
+        )
+        self._term_btn.pack(side=tk.LEFT, padx=(0, 4))
+
+        self._stop_btn = ttk.Button(
+            ctrl_frame, text="■  Stop", command=self._stop, state=tk.DISABLED
+        )
+        self._stop_btn.pack(side=tk.LEFT, padx=(0, 4))
+
+        ttk.Button(ctrl_frame, text="✕  Clear", command=self._clear).pack(side=tk.LEFT)
+
+        # Status indicator
+        self._status_var = tk.StringVar(value="")
+        ttk.Label(
+            ctrl_frame, textvariable=self._status_var, font=("sans-serif", 9)
+        ).pack(side=tk.RIGHT)
+
+        # stdin input row (for interactive embedded processes)
+        stdin_frame = ttk.Frame(frame)
+        stdin_frame.pack(fill=tk.X, padx=6, pady=(0, 4))
+        ttk.Label(stdin_frame, text="Send input:").pack(side=tk.LEFT)
+        self._stdin_var = tk.StringVar()
+        stdin_entry = ttk.Entry(stdin_frame, textvariable=self._stdin_var)
+        stdin_entry.pack(side=tk.LEFT, fill=tk.X, expand=True, padx=(4, 4))
+        stdin_entry.bind("<Return>", self._send_stdin)
+        ttk.Button(stdin_frame, text="↵ Send", command=self._send_stdin).pack(
+            side=tk.LEFT
+        )
+
+        # Output terminal
+        term_frame = ttk.Frame(frame)
+        term_frame.pack(fill=tk.BOTH, expand=True, padx=6, pady=(0, 6))
+
+        mono = font.Font(family="Monospace", size=9)
+        self._output = tk.Text(
+            term_frame,
+            bg=self._TERMINAL_BG,
+            fg=self._TEXT,
+            font=mono,
+            wrap=tk.WORD,
+            state=tk.DISABLED,
+            relief=tk.FLAT,
+            insertbackground=self._TEXT,
+        )
+        out_scroll = ttk.Scrollbar(term_frame, command=self._output.yview)
+        self._output.configure(yscrollcommand=out_scroll.set)
+        out_scroll.pack(side=tk.RIGHT, fill=tk.Y)
+        self._output.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
+
+        self._output.tag_config("stderr", foreground=self._RED)
+        self._output.tag_config("info", foreground=self._ACCENT)
+        self._output.tag_config("success", foreground=self._GREEN)
+        self._output.tag_config("error", foreground=self._RED)
+
+        return frame
+
+    # ------------------------------------------------------------------
+    # Project discovery / tree population
+    # ------------------------------------------------------------------
+
+    def _load_projects(self) -> None:
+        self._projects = find_projects(REPO_ROOT)
+        self._populate_tree(self._projects)
+
+    def _populate_tree(self, projects: list[dict[str, object]]) -> None:
+        self._tree.delete(*self._tree.get_children())
+
+        groups: dict[str, list[dict[str, object]]] = {}
+        for p in projects:
+            rel = cast("Path", p["rel"])
+            parts = rel.parts
+            group = parts[0] if len(parts) > 1 else "(root)"
+            groups.setdefault(group, []).append(p)
+
+        icons = {
+            "python_pkg": "🐍",
+            "C": "⚙️",
+            "CPP": "⚙️",
+            "articles": "📰",
+            "TS": "📜",
+            "Bash": "🐚",
+        }
+        for group, items in sorted(groups.items()):
+            icon = icons.get(group, "📁")
+            gid = self._tree.insert("", tk.END, text=f"{icon} {group}", tags=("group",))
+            for item in items:
+                rel2 = cast("Path", item["rel"])
+                label = cast(
+                    "str",
+                    "/".join(rel2.parts[1:]) if len(rel2.parts) > 1 else item["name"],
+                )
+                path_str = str(item["path"])
+                self._tree.insert(gid, tk.END, text=f"  {label}", values=[path_str])
+
+        self._tree.tag_configure("group", foreground=self._TEXT_DIM)
+        # Expand all groups if result set is small enough
+        if len(projects) <= self._MAX_EXPAND:
+            for gid in self._tree.get_children():
+                self._tree.item(gid, open=True)
+
+        n = len(projects)
+        self._count_var.set(f"{n} project{'s' if n != 1 else ''}")
+
+    def _filter_tree(self) -> None:
+        q = self._search_var.get().lower()
+        if not q:
+            self._populate_tree(self._projects)
+            return
+        filtered = [
+            p
+            for p in self._projects
+            if q in str(p["rel"]).lower() or q in str(p["name"]).lower()
+        ]
+        self._populate_tree(filtered)
+
+    # ------------------------------------------------------------------
+    # Selection / info panel
+    # ------------------------------------------------------------------
+
+    def _selected_path(self) -> Path | None:
+        sel = self._tree.selection()
+        if not sel:
+            return None
+        vals = self._tree.item(sel[0], "values")
+        if not vals:
+            return None
+        return Path(vals[0])
+
+    def _on_select(self, _event: object) -> None:
+        path = self._selected_path()
+        if path is None:
+            self._run_btn.configure(state=tk.DISABLED)
+            self._term_btn.configure(state=tk.DISABLED)
+            return
+        self._title_var.set(str(path.relative_to(REPO_ROOT)))
+        self._desc_var.set(get_description(path))
+        self._run_btn.configure(state=tk.NORMAL)
+        self._term_btn.configure(
+            state=tk.NORMAL if self._terminal_args else tk.DISABLED
+        )
+
+    # ------------------------------------------------------------------
+    # Run in external terminal (for interactive / keyboard-driven programs)
+    # ------------------------------------------------------------------
+
+    def _run_in_terminal(self) -> None:
+        path = self._selected_path()
+        if path is None or not self._terminal_args:
+            return
+        args_str = self._args_var.get().strip()
+        extra = args_str.split() if args_str else []
+        subprocess.Popen([*self._terminal_args, "bash", "run.sh", *extra], cwd=path)
+        self._write_output(
+            f"$ Launched in {self._terminal_args[0]}: {path.relative_to(REPO_ROOT)}\n",
+            "info",
+        )
+
+    # ------------------------------------------------------------------
+    # Run embedded with PTY (captures terminal-aware / ncurses output)
+    # ------------------------------------------------------------------
+
+    def _run_embedded(self) -> None:
+        path = self._selected_path()
+        if path is None:
+            return
+        if self._proc and self._proc.poll() is None:
+            self._stop()
+
+        self._clear()
+        args_str = self._args_var.get().strip()
+        extra = args_str.split() if args_str else []
+        display_cmd = ("bash run.sh " + args_str).strip()
+        self._write_output(
+            f"$ {display_cmd}  [{path.relative_to(REPO_ROOT)}]\n", "info"
+        )
+
+        master_fd, slave_fd = pty.openpty()
+        self._master_fd = master_fd
+        # Non-blocking reads on master so the reader thread doesn't stall
+        fl = fcntl.fcntl(master_fd, fcntl.F_GETFL)
+        fcntl.fcntl(master_fd, fcntl.F_SETFL, fl | os.O_NONBLOCK)
+
+        self._proc = subprocess.Popen(
+            ["bash", "run.sh", *extra],  # noqa: S607
+            cwd=path,
+            stdin=slave_fd,
+            stdout=slave_fd,
+            stderr=slave_fd,
+            close_fds=True,
+        )
+        os.close(slave_fd)
+
+        self._run_btn.configure(state=tk.DISABLED)
+        self._stop_btn.configure(state=tk.NORMAL)
+        self._status_var.set("● running")
+
+        threading.Thread(target=self._read_pty, daemon=True).start()
+        threading.Thread(target=self._wait_proc, daemon=True).start()
+
+    def _read_pty(self) -> None:  # noqa: C901, PLR0912
+        """Stream PTY output to the widget, stripping ANSI codes.
+
+        Partial lines (prompts without a trailing newline) are flushed after
+        ~100 ms of silence so interactive prompts like "Enter value: " appear.
+        """
+        buf = b""
+        idle_ticks = 0  # consecutive 50 ms timeouts while buf has content
+        while self._proc and self._proc.poll() is None:
+            mfd = self._master_fd
+            if mfd is None:
+                break
+            ready, _, _ = select.select([mfd], [], [], 0.05)
+            if not ready:
+                # No new data — flush partial buffer after ~100 ms (2 ticks)
+                if buf:
+                    idle_ticks += 1
+                    if idle_ticks >= self._IDLE_FLUSH_TICKS:
+                        text = _strip_ansi(
+                            buf.decode("utf-8", errors="replace").replace("\r", "")
+                        )
+                        if text:
+                            self._write_output(text)
+                        buf = b""
+                        idle_ticks = 0
+                continue
+            idle_ticks = 0
+            try:
+                chunk = os.read(mfd, 4096)
+            except OSError:
+                break
+            if not chunk:
+                break
+            buf += chunk
+            while b"\n" in buf:
+                line, buf = buf.split(b"\n", 1)
+                text = _strip_ansi(
+                    line.decode("utf-8", errors="replace").replace("\r", "")
+                )
+                if text:
+                    self._write_output(text + "\n")
+        # flush remainder
+        if buf:
+            text = _strip_ansi(buf.decode("utf-8", errors="replace").replace("\r", ""))
+            if text:
+                self._write_output(text)
+        if self._master_fd is not None:
+            with contextlib.suppress(OSError):
+                os.close(self._master_fd)
+            self._master_fd = None
+
+    # ------------------------------------------------------------------
+    # stdin forwarding (typed into the "Send input" field)
+    # ------------------------------------------------------------------
+
+    def _send_stdin(self, _event: object = None) -> None:
+        text = self._stdin_var.get()
+        self._stdin_var.set("")
+        payload = (text + "\n").encode()
+        if self._master_fd is not None:
+            with contextlib.suppress(OSError):
+                os.write(self._master_fd, payload)
+
+    def _wait_proc(self) -> None:
+        if self._proc:
+            code = self._proc.wait()
+            self.after(0, self._on_proc_done, code)
+
+    def _on_proc_done(self, code: int) -> None:
+        if code == 0:
+            self._write_output(f"\n[exited with code {code}]\n", "success")
+            self._status_var.set("✓ done")
+        else:
+            self._write_output(f"\n[exited with code {code}]\n", "error")
+            self._status_var.set(f"✗ exit {code}")
+        self._run_btn.configure(state=tk.NORMAL)
+        self._stop_btn.configure(state=tk.DISABLED)
+
+    def _stop(self) -> None:
+        if self._proc and self._proc.poll() is None:
+            self._proc.terminate()
+            self._status_var.set("stopped")
+
+    def _clear(self) -> None:
+        self._output.configure(state=tk.NORMAL)
+        self._output.delete("1.0", tk.END)
+        self._output.configure(state=tk.DISABLED)
+        self._status_var.set("")
+
+    def _write_output(self, text: str, tag: str | None = None) -> None:
+        """Thread-safe output append via after()."""
+        self.after(0, self._append_output, text, tag)
+
+    def _append_output(self, text: str, tag: str | None) -> None:
+        self._output.configure(state=tk.NORMAL)
+        if tag:
+            self._output.insert(tk.END, text, tag)
+        else:
+            self._output.insert(tk.END, text)
+        self._output.see(tk.END)
+        self._output.configure(state=tk.DISABLED)
+
+
+# ---------------------------------------------------------------------------
+
+if __name__ == "__main__":
+    RepoExplorer().mainloop()

python_pkg/repo_explorer/run.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Repo Explorer - browse and run any project in the monorepo via a GUI.
+# Requires tkinter (Arch: sudo pacman -S python-tkinter)
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+
+# Ensure tkinter is available (it's stdlib but needs the python-tkinter OS package)
+if ! python3 -c "import tkinter" 2>/dev/null; then
+    echo "tkinter not found. Installing python-tkinter..."
+    sudo pacman -S --noconfirm python-tkinter 2>/dev/null \
+        || sudo apt-get install -y python3-tk 2>/dev/null \
+        || { echo "Please install python-tkinter manually."; exit 1; }
+fi
+
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+"$VENV/bin/python" "$SCRIPT_DIR/repo_explorer.py" "$@"

python_pkg/scrape_website/run.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+_pip_sync() { local r="$1" h; h=$(md5sum "$r"|cut -d' ' -f1); local lf="$VENV/.req_${h:0:8}.lock"; [[ -f "$lf" ]] && return; "$VENV/bin/pip" install -r "$r" -q && touch "$lf"; }
+_pip_sync "$SCRIPT_DIR/requirements.txt"
+# Usage: ./run.sh <url> [--output-dir DIR] [--max-pages N]
+"$VENV/bin/python" "$SCRIPT_DIR/scrape_comics.py" "$@"

python_pkg/stockfish_analysis/analyze_chess_game.py

@@ -367,19 +367,19 @@ def _configure_hash(
 
 
 def _configure_multipv(
-    engine: chess.engine.SimpleEngine, options: EngineOptions, requested: int
+    _engine: chess.engine.SimpleEngine, options: EngineOptions, requested: int
 ) -> int:
     """Configure MultiPV and return effective value."""
     effective = max(1, int(requested))
-    if "MultiPV" not in options:
-        return effective
+    # MultiPV is automatically managed by python-chess and passed directly to
+    # engine.analyse(..., multipv=N) — do not configure() it here.
+    if "MultiPV" in options:
         try:
             max_mpv = getattr(options["MultiPV"], "max", None)
             if isinstance(max_mpv, int):
                 effective = min(effective, max_mpv)
-        engine.configure({"MultiPV": int(effective)})
         except (AttributeError, TypeError, ValueError):
-        _logger.debug("Failed to configure MultiPV option")
+            _logger.debug("Failed to read MultiPV max option")
     return effective
 
 

python_pkg/stockfish_analysis/run.sh

@@ -24,8 +24,12 @@ fi
 # shellcheck disable=SC1090
 source "$VENV_DIR/bin/activate"
 
-# Install dependencies quietly
-pip install -r "$SCRIPT_DIR/requirements.txt" >/dev/null
+# Install dependencies only if requirements.txt has changed
+_REQ="$SCRIPT_DIR/requirements.txt"
+_HASH=$(md5sum "$_REQ" | cut -d' ' -f1)
+_LOCK="$VENV_DIR/.req_${_HASH:0:8}.lock"
+[[ -f "$_LOCK" ]] || { pip install -r "$_REQ" >/dev/null && touch "$_LOCK"; }
+unset _REQ _HASH _LOCK
 
 # Default engine (can override with STOCKFISH env var)
 ENGINE_BIN="${STOCKFISH:-stockfish}"

python_pkg/tag_divider/run.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VENV="$REPO_ROOT/.venv"
+[[ ! -d "$VENV" ]] && python3 -m venv "$VENV"
+"$VENV/bin/pip" show opencv-python &>/dev/null || "$VENV/bin/pip" install opencv-python -q
+# Usage: ./run.sh <images_dir>
+"$VENV/bin/python" "$SCRIPT_DIR/tag_divider.py" "$@"

python_pkg/word_frequency/run.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -e
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# Usage: ./run.sh <text_file> [options]
+"$SCRIPT_DIR/../../.venv/bin/python" "$SCRIPT_DIR/vocabulary_curve.py" "$@"