diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index be1385c..1e49607 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -51,7 +51,7 @@ jobs:
 
       - name: Make scripts executable
         run: |
-          chmod +x ./build_all.sh ./test_all.sh ./run.sh
+          chmod +x ./setup.sh ./test_all.sh
 
       - name: Build & Run Unit Tests
         run: |
diff --git a/.gitea/workflows/release.yaml b/.gitea/workflows/release.yaml
index e507525..36d766e 100644
--- a/.gitea/workflows/release.yaml
+++ b/.gitea/workflows/release.yaml
@@ -44,7 +44,7 @@ jobs:
 
       - name: Make scripts executable
         run: |
-          chmod +x ./build_all.sh ./test_all.sh ./run.sh
+          chmod +x ./setup.sh ./test_all.sh
 
       - name: Build & Run Unit Tests
         run: |
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index be1385c..1e49607 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -51,7 +51,7 @@ jobs:
 
       - name: Make scripts executable
         run: |
-          chmod +x ./build_all.sh ./test_all.sh ./run.sh
+          chmod +x ./setup.sh ./test_all.sh
 
       - name: Build & Run Unit Tests
         run: |
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index f893560..22a5b35 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -44,7 +44,7 @@ jobs:
 
       - name: Make scripts executable
         run: |
-          chmod +x ./build_all.sh ./test_all.sh ./run.sh
+          chmod +x ./setup.sh ./test_all.sh
 
       - name: Build & Run Unit Tests
         run: |
diff --git a/README.md b/README.md
index 62f7e78..1ba3766 100644
--- a/README.md
+++ b/README.md
@@ -62,8 +62,8 @@ java -jar j3270.jar -c config.ini
 # Enable protocol and diagnostic debug logging to j3270.log
 java -jar j3270.jar -d mainframe.example.com
 
-# Launch directly from source runner script
-./run.sh
+# Launch directly from source setup script
+./setup.sh --run
 ```
 
 ---
@@ -160,15 +160,11 @@ Self-contained setup scripts automatically locate an installed Java 11+ JDK (sea
 # Clean build and connect to host:
 .\setup.ps1 -Clean -Run -- mainframe.example.com 23 4
 ```
-*(Also available as `.\setup.ps`)*
 
-### Standalone Build (Advanced / CI)
-The project also provides low-level scripts and optional Gradle support:
+### Standalone Testing & CI
+Run automated tests directly via the standalone test runner:
 
 ```bash
-# Direct compile and package without diagnostics:
-sh ./build_all.sh
-
 # Run all 851 automated unit tests (~25s):
 sh ./test_all.sh
 ```
diff --git a/build_all.sh b/build_all.sh
deleted file mode 100755
index 63f6503..0000000
--- a/build_all.sh
+++ /dev/null
@@ -1,168 +0,0 @@
-#!/bin/sh
-set -e
-
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
-cd "$SCRIPT_DIR"
-
-echo "=== Building j3270 Terminal Emulator ==="
-
-# 1. Locate Java toolchain
-JAVAC_BIN=""
-JAR_BIN=""
-
-if [ -n "$JAVA_HOME" ] && [ -x "$JAVA_HOME/bin/javac" ] && [ -x "$JAVA_HOME/bin/jar" ]; then
-    JAVAC_BIN="$JAVA_HOME/bin/javac"
-    JAR_BIN="$JAVA_HOME/bin/jar"
-elif command -v javac >/dev/null 2>&1 && command -v jar >/dev/null 2>&1; then
-    if javac -version >/dev/null 2>&1; then
-        JAVAC_BIN="$(command -v javac)"
-        JAR_BIN="$(command -v jar)"
-    fi
-fi
-
-if [ -z "$JAVAC_BIN" ] || [ -z "$JAR_BIN" ]; then
-    if [ -x /usr/libexec/java_home ]; then
-        MAC_JAVA_HOME="$(/usr/libexec/java_home 2>/dev/null || true)"
-        if [ -n "$MAC_JAVA_HOME" ] && [ -x "$MAC_JAVA_HOME/bin/javac" ] && [ -x "$MAC_JAVA_HOME/bin/jar" ]; then
-            export JAVA_HOME="$MAC_JAVA_HOME"
-            JAVAC_BIN="$JAVA_HOME/bin/javac"
-            JAR_BIN="$JAVA_HOME/bin/jar"
-        fi
-    fi
-fi
-
-if [ -z "$JAVAC_BIN" ] || [ -z "$JAR_BIN" ]; then
-    # Check standard system JDK installation locations
-    for h in /usr/lib/jvm/default-java \
-             /usr/lib/jvm/java-21-openjdk* \
-             /usr/lib/jvm/java-17-openjdk* \
-             /usr/lib/jvm/java-11-openjdk* \
-             /Library/Java/JavaVirtualMachines/*/Contents/Home \
-             /opt/homebrew/opt/openjdk/libexec/openjdk.jdk/Contents/Home \
-             /opt/homebrew/opt/openjdk; do
-        if [ -d "$h" ] && [ -x "$h/bin/javac" ] && [ -x "$h/bin/jar" ]; then
-            export JAVA_HOME="$h"
-            JAVAC_BIN="$JAVA_HOME/bin/javac"
-            JAR_BIN="$JAVA_HOME/bin/jar"
-            break
-        fi
-    done
-fi
-
-if [ -z "$JAVAC_BIN" ] || [ -z "$JAR_BIN" ]; then
-    echo "ERROR: Java development tools (javac, jar) could not be found."
-    echo "Please install JDK 11+ or set JAVA_HOME."
-    exit 1
-fi
-
-echo "Using Java compiler: $JAVAC_BIN"
-echo "Using JAR utility:   $JAR_BIN"
-
-BUILD_DIR="$SCRIPT_DIR/build"
-rm -rf "$BUILD_DIR/lib3270j" "$BUILD_DIR/j3270" "$BUILD_DIR/MANIFEST.MF"
-mkdir -p "$BUILD_DIR/lib3270j" "$BUILD_DIR/j3270"
-
-# 2. Compile lib3270j
-echo "Compiling lib3270j..."
-find "$SCRIPT_DIR/lib3270j/src/main/java" -name "*.java" > "$BUILD_DIR/lib_sources.txt"
-if [ ! -s "$BUILD_DIR/lib_sources.txt" ]; then
-    echo "ERROR: No sources found in lib3270j/src/main/java"
-    exit 1
-fi
-"$JAVAC_BIN" -d "$BUILD_DIR/lib3270j" @"$BUILD_DIR/lib_sources.txt"
-
-# 3. Compile j3270
-echo "Compiling j3270 application..."
-find "$SCRIPT_DIR/j3270/src/main/java" -name "*.java" > "$BUILD_DIR/app_sources.txt"
-if [ ! -s "$BUILD_DIR/app_sources.txt" ]; then
-    echo "ERROR: No sources found in j3270/src/main/java"
-    exit 1
-fi
-"$JAVAC_BIN" -cp "$BUILD_DIR/lib3270j" -d "$BUILD_DIR/j3270" @"$BUILD_DIR/app_sources.txt"
-
-# Clean up temporary source lists
-rm -f "$BUILD_DIR/lib_sources.txt" "$BUILD_DIR/app_sources.txt"
-
-# Copy any resources if present
-if [ -d "$SCRIPT_DIR/j3270/src/main/resources" ]; then
-    cp -r "$SCRIPT_DIR/j3270/src/main/resources/"* "$BUILD_DIR/j3270/" 2>/dev/null || true
-fi
-if [ -d "$SCRIPT_DIR/lib3270j/src/main/resources" ]; then
-    cp -r "$SCRIPT_DIR/lib3270j/src/main/resources/"* "$BUILD_DIR/lib3270j/" 2>/dev/null || true
-fi
-
-# 4. Package JARs
-echo "Packaging lib3270j.jar (standalone library)..."
-printf "Manifest-Version: 1.0\nImplementation-Title: lib3270j\nImplementation-Version: 1.2.4\nCreated-By: j3270 build_all.sh\n\n" > "$BUILD_DIR/LIB_MANIFEST.MF"
-
-"$JAR_BIN" cvfm "$BUILD_DIR/lib3270j.jar" "$BUILD_DIR/LIB_MANIFEST.MF" \
-    -C "$BUILD_DIR/lib3270j" . > /dev/null
-
-echo "Packaging j3270.jar (standalone executable)..."
-printf "Manifest-Version: 1.0\nMain-Class: haus.nightmare.j3270.J3270App\nImplementation-Title: j3270\nImplementation-Version: 1.2.4\nCreated-By: j3270 build_all.sh\n\n" > "$BUILD_DIR/MANIFEST.MF"
-
-"$JAR_BIN" cvfm "$BUILD_DIR/j3270.jar" "$BUILD_DIR/MANIFEST.MF" \
-    -C "$BUILD_DIR/lib3270j" . \
-    -C "$BUILD_DIR/j3270" . > /dev/null
-
-echo "=== Build Complete ==="
-echo "Library JAR created:    $BUILD_DIR/lib3270j.jar"
-ls -lh "$BUILD_DIR/lib3270j.jar"
-echo "Executable JAR created: $BUILD_DIR/j3270.jar"
-ls -lh "$BUILD_DIR/j3270.jar"
-
-# 5. Compile and run tests if requested
-if [ "$1" = "test" ] || [ "$1" = "check" ]; then
-    echo "=== Running Tests ==="
-    TEST_BUILD_DIR="$BUILD_DIR/test-classes"
-    mkdir -p "$TEST_BUILD_DIR"
-    JUNIT_CP=$(find "$HOME/.gradle/caches/modules-2/files-2.1/" -name "*.jar" 2>/dev/null | grep -E "junit|opentest|apiguardian" | tr "\n" ":" || true)
-    FULL_CP="$BUILD_DIR/lib3270j:$BUILD_DIR/j3270:$JUNIT_CP"
-    
-    find "$SCRIPT_DIR/lib3270j/src/test/java" -name "*.java" > "$BUILD_DIR/test_sources.txt" 2>/dev/null || true
-    if [ -d "$SCRIPT_DIR/j3270/src/test/java" ]; then
-        find "$SCRIPT_DIR/j3270/src/test/java" -name "*.java" >> "$BUILD_DIR/test_sources.txt" 2>/dev/null || true
-    fi
-    
-    if [ -s "$BUILD_DIR/test_sources.txt" ] && [ -n "$JUNIT_CP" ]; then
-        echo "Compiling tests..."
-        "$JAVAC_BIN" -cp "$FULL_CP" -d "$TEST_BUILD_DIR" @"$BUILD_DIR/test_sources.txt"
-        rm -f "$BUILD_DIR/test_sources.txt"
-        
-        echo "Executing tests with JUnit Platform..."
-        cat << 'EOF' > "$BUILD_DIR/TestRunner.java"
-import org.junit.platform.launcher.*;
-import org.junit.platform.launcher.core.*;
-import org.junit.platform.launcher.listeners.*;
-import org.junit.platform.engine.discovery.*;
-import static org.junit.platform.engine.discovery.DiscoverySelectors.*;
-import java.io.PrintWriter;
-
-public class TestRunner {
-    public static void main(String[] args) {
-        LauncherDiscoveryRequest request = LauncherDiscoveryRequestBuilder.request()
-            .selectors(
-                selectPackage("haus.nightmare")
-            )
-            .build();
-
-        Launcher launcher = LauncherFactory.create();
-        SummaryGeneratingListener listener = new SummaryGeneratingListener();
-        launcher.registerTestExecutionListeners(listener);
-        launcher.execute(request);
-
-        TestExecutionSummary summary = listener.getSummary();
-        summary.printTo(new PrintWriter(System.out));
-        summary.printFailuresTo(new PrintWriter(System.err));
-
-        System.exit(summary.getTotalFailureCount() > 0 ? 1 : 0);
-    }
-}
-EOF
-        "$JAVAC_BIN" -cp "$FULL_CP:$TEST_BUILD_DIR" -d "$BUILD_DIR" "$BUILD_DIR/TestRunner.java"
-        JAVA_BIN_EXEC="${JAVA_HOME:+$JAVA_HOME/bin/java}"
-        JAVA_BIN_EXEC="${JAVA_BIN_EXEC:-java}"
-        "$JAVA_BIN_EXEC" -cp "$FULL_CP:$TEST_BUILD_DIR:$BUILD_DIR" TestRunner
-    fi
-fi
-
diff --git a/docs/gitea-runner.md b/docs/gitea-runner.md
index 8499240..8b309c8 100644
--- a/docs/gitea-runner.md
+++ b/docs/gitea-runner.md
@@ -2,7 +2,7 @@
 
 This repository includes Gitea Actions workflows in `.gitea/workflows/build.yaml` to automatically:
 1. Compile and run the JUnit 5 test suite across the 3 LTS Java versions (Java 11, 17, and 21) via `test_all.sh`.
-2. Build standalone executables for each LTS version via `build_all.sh`.
+2. Build standalone executables for each LTS version via `setup.sh`.
 3. Upload `j3270-java11.jar`, `j3270-java17.jar`, and `j3270-java21.jar` as downloadable artifacts.
 4. Report test results and diagnostics per runtime.
 
@@ -102,8 +102,8 @@ You can verify the entire build and test suite locally at any time without exter
 sh ./test_all.sh
 
 # Build executable standalone JAR:
-sh ./build_all.sh
+./setup.sh
 
 # Run the emulator:
-sh ./run.sh
+java -jar build/j3270.jar
 ```
diff --git a/j3270.ini.sample b/j3270.ini.sample
index e457c96..2a43436 100644
--- a/j3270.ini.sample
+++ b/j3270.ini.sample
@@ -1,6 +1,5 @@
 ; j3270 Configuration File
 ; Load with: java -jar j3270.jar -c j3270.ini
-; or:        ./run.sh -c j3270.ini
 
 [appearance]
 ; UI font settings (menus, dialogs, status bar)
diff --git a/j3270/src/test/java/haus/nightmare/j3270/Phase27BuildAndRenderTest.java b/j3270/src/test/java/haus/nightmare/j3270/Phase27BuildAndRenderTest.java
index 4b66d9a..bb0ea03 100644
--- a/j3270/src/test/java/haus/nightmare/j3270/Phase27BuildAndRenderTest.java
+++ b/j3270/src/test/java/haus/nightmare/j3270/Phase27BuildAndRenderTest.java
@@ -43,12 +43,6 @@ public class Phase27BuildAndRenderTest {
         assertTrue(buildGradleContent.contains("version = '1.2.4'"), "build.gradle must define version = '1.2.4'");
         assertFalse(buildGradleContent.contains("0.1.0"), "build.gradle must not contain 0.1.0");
 
-        // 2. Verify build_all.sh Implementation-Version: 1.2.4
-        File buildAll = new File(projectRoot, "build_all.sh");
-        assertTrue(buildAll.exists(), "build_all.sh must exist");
-        String buildAllContent = Files.readString(buildAll.toPath());
-        assertTrue(buildAllContent.contains("Implementation-Version: 1.2.4"), "build_all.sh must specify Implementation-Version: 1.2.4");
-        assertFalse(buildAllContent.contains("Implementation-Version: 0.1.0"), "build_all.sh must not contain 0.1.0");
 
         // 3. Verify setup.ps1 Implementation-Version: 1.2.4
         File setupPs1 = new File(projectRoot, "setup.ps1");
diff --git a/lib3270j/src/test/java/haus/nightmare/lib3270j/Phase30LibraryDistributionTest.java b/lib3270j/src/test/java/haus/nightmare/lib3270j/Phase30LibraryDistributionTest.java
index fe75ce5..f547657 100644
--- a/lib3270j/src/test/java/haus/nightmare/lib3270j/Phase30LibraryDistributionTest.java
+++ b/lib3270j/src/test/java/haus/nightmare/lib3270j/Phase30LibraryDistributionTest.java
@@ -59,13 +59,6 @@ public class Phase30LibraryDistributionTest {
     public void testBuildScriptsStandaloneLibraryPackaging() throws Exception {
         File projectRoot = locateProjectRoot();
 
-        // 1. build_all.sh
-        File buildAll = new File(projectRoot, "build_all.sh");
-        assertTrue(buildAll.exists(), "build_all.sh must exist");
-        String buildAllContent = Files.readString(buildAll.toPath());
-        assertTrue(buildAllContent.contains("lib3270j.jar"), "build_all.sh must package lib3270j.jar");
-        assertTrue(buildAllContent.contains("Implementation-Title: lib3270j"), "build_all.sh must set Implementation-Title: lib3270j");
-        assertTrue(buildAllContent.contains("Implementation-Version: 1.2.4"), "build_all.sh must set Implementation-Version: 1.2.4");
 
         // 2. setup.sh
         File setupSh = new File(projectRoot, "setup.sh");
diff --git a/run.sh b/run.sh
deleted file mode 100755
index 8717bcd..0000000
--- a/run.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/bin/bash
-# Launch j3270 - Java TN3270 Terminal Emulator
-# Usage: ./run.sh [host] [port] [model]
-# Example: ./run.sh mainframe.example.com 23 4
-
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
-BUILD_DIR="$SCRIPT_DIR/build"
-
-# Build if jar is missing or rebuild requested
-if [ ! -f "$BUILD_DIR/j3270.jar" ]; then
-    "$SCRIPT_DIR/build_all.sh"
-fi
-
-exec java -Dapple.laf.useScreenMenuBar=true \
-          -Dapple.awt.application.name=j3270 \
-          -jar "$BUILD_DIR/j3270.jar" "$@"
diff --git a/setup.ps b/setup.ps
deleted file mode 100644
index 2b8864c..0000000
--- a/setup.ps
+++ /dev/null
@@ -1,31 +0,0 @@
-<#
-.SYNOPSIS
-    j3270 Terminal Emulator - Setup and Build Script (PowerShell Entrypoint)
-    Forwards execution directly to setup.ps1 with all supplied parameters.
-
-.DESCRIPTION
-    See setup.ps1 for full implementation, parameter definitions, and documentation.
-#>
-
-[CmdletBinding()]
-param (
-    [switch]$Run,
-    [switch]$Test,
-    [switch]$Clean,
-    [switch]$Help,
-    [Parameter(ValueFromRemainingArguments = $true)]
-    [string[]]$RunArgs
-)
-
-$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
-if (-not $scriptDir) {
-    $scriptDir = Get-Location
-}
-
-$ps1Script = Join-Path $scriptDir "setup.ps1"
-if (Test-Path $ps1Script) {
-    & $ps1Script @PSBoundParameters @RunArgs
-} else {
-    Write-Error "setup.ps1 not found in $scriptDir"
-    exit 1
-}
diff --git a/setup.sh b/setup.sh
index 3aef583..745447b 100755
--- a/setup.sh
+++ b/setup.sh
@@ -411,9 +411,9 @@ log_success "Library JAR:    $BUILD_DIR/lib3270j.jar ($LIB_JAR_SIZE)"
 log_success "Executable JAR: $BUILD_DIR/j3270.jar ($JAR_SIZE)"
 
 printf "\n%bTo run j3270:%b\n" "$BOLD" "$RESET"
-printf "  ./run.sh\n"
-printf "  # Or directly:\n"
-printf "  %s -jar \"%s/build/j3270.jar\"\n\n" "$JAVA_BIN" "$SCRIPT_DIR"
+printf "  java -jar \"%s/build/j3270.jar\"\n" "$SCRIPT_DIR"
+printf "  # Or launch via setup script:\n"
+printf "  ./setup.sh --run\n\n"
 
 # ------------------------------------------------------------------------------
 # 6. Run Tests (if requested)
@@ -422,8 +422,6 @@ if [ "$DO_TEST" -eq 1 ]; then
     printf "%b=== Running Unit Tests ===%b\n" "$BOLD" "$RESET"
     if [ -x "$SCRIPT_DIR/test_all.sh" ]; then
         sh "$SCRIPT_DIR/test_all.sh"
-    elif [ -x "$SCRIPT_DIR/build_all.sh" ]; then
-        sh "$SCRIPT_DIR/build_all.sh" test
     fi
 fi
 
diff --git a/test_all.sh b/test_all.sh
index 9316909..57601f2 100755
--- a/test_all.sh
+++ b/test_all.sh
@@ -7,7 +7,7 @@ cd "$SCRIPT_DIR"
 echo "=== Running j3270 Test Suite ==="
 
 # 1. First build the core libraries
-sh "$SCRIPT_DIR/build_all.sh"
+sh "$SCRIPT_DIR/setup.sh"
 
 # 2. Locate Java toolchain
 JAVAC_BIN=""