diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 09200a181..6d7b4aac2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,6 +32,15 @@ on:
   push:
     tags: ['v*']
   workflow_dispatch:
+    inputs:
+      version:
+        description: "Version string for package names (e.g. 0.2.0). Blank = derive from ref."
+        required: false
+        default: ""
+      coins:
+        description: "JSON array of coins to build (e.g. [\"ltc\"]). Blank = all five."
+        required: false
+        default: ""
 
 concurrency:
   group: release-${{ github.ref }}
@@ -50,14 +59,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        coin: [btc, ltc, dgb, dash, bch]
+        coin: ${{ fromJSON(github.event.inputs.coins || '["btc","ltc","dgb","dash","bch"]') }}
     steps:
       - uses: actions/checkout@v6
 
       - name: Resolve version
         id: ver
         run: |
-          if [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
+          if [ -n "${{ github.event.inputs.version }}" ]; then
+            echo "version=${{ github.event.inputs.version }}" >> "$GITHUB_OUTPUT"
+          elif [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
             echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
           else
             echo "version=0.0.0-${GITHUB_SHA:0:8}" >> "$GITHUB_OUTPUT"
@@ -178,7 +189,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        coin: [btc, ltc, dgb, dash, bch]
+        coin: ${{ fromJSON(github.event.inputs.coins || '["btc","ltc","dgb","dash","bch"]') }}
         arch: [arm64, x86_64]
         include:
           - arch: arm64
@@ -191,7 +202,9 @@ jobs:
       - name: Resolve version
         id: ver
         run: |
-          if [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
+          if [ -n "${{ github.event.inputs.version }}" ]; then
+            echo "version=${{ github.event.inputs.version }}" >> "$GITHUB_OUTPUT"
+          elif [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
             echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
           else
             echo "version=0.0.0-${GITHUB_SHA:0:8}" >> "$GITHUB_OUTPUT"
@@ -291,14 +304,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        coin: [btc, ltc, dgb, dash, bch]
+        coin: ${{ fromJSON(github.event.inputs.coins || '["btc","ltc","dgb","dash","bch"]') }}
     steps:
       - uses: actions/checkout@v6
 
       - name: Resolve version
         id: ver
         run: |
-          if [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
+          if [ -n "${{ github.event.inputs.version }}" ]; then
+            echo "version=${{ github.event.inputs.version }}" >> "$GITHUB_OUTPUT"
+          elif [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
             echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
           else
             echo "version=0.0.0-${GITHUB_SHA:0:8}" >> "$GITHUB_OUTPUT"
@@ -366,6 +381,24 @@ jobs:
           name: pkg-macos-${{ matrix.coin }}
           path: c2pool-*-macos-universal.zip
 
+      - name: Build DMG installer
+        if: steps.presence.outputs.exists == '1'
+        run: |
+          VERSION="${{ steps.ver.outputs.version }}"
+          COIN="${{ matrix.coin }}"
+          bash installer/macos/create-dmg.sh \
+            --staged "c2pool-${COIN}-${VERSION}-macos-universal" \
+            --name "c2pool-${COIN}" \
+            --version "${VERSION}" \
+            --arch universal
+
+      - name: Upload DMG installer
+        if: steps.presence.outputs.exists == '1'
+        uses: actions/upload-artifact@v7
+        with:
+          name: pkg-macos-dmg-${{ matrix.coin }}
+          path: c2pool-*-macos-universal.dmg
+
   # ════════════════════════════════════════════════════════════════════════════
   # Windows x86_64 (MSVC 2022, Conan)
   # ════════════════════════════════════════════════════════════════════════════
@@ -375,7 +408,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        coin: [btc, ltc, dgb, dash, bch]
+        coin: ${{ fromJSON(github.event.inputs.coins || '["btc","ltc","dgb","dash","bch"]') }}
     steps:
       - uses: actions/checkout@v6
 
@@ -383,7 +416,9 @@ jobs:
         id: ver
         shell: bash
         run: |
-          if [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
+          if [ -n "${{ github.event.inputs.version }}" ]; then
+            echo "version=${{ github.event.inputs.version }}" >> "$GITHUB_OUTPUT"
+          elif [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
             echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
           else
             echo "version=0.0.0-${GITHUB_SHA:0:8}" >> "$GITHUB_OUTPUT"
@@ -482,6 +517,29 @@ jobs:
           name: pkg-windows-${{ matrix.coin }}
           path: c2pool-*-windows-x86_64.zip
 
+      - name: Build setup.exe installer (Inno Setup)
+        if: steps.presence.outputs.exists == '1'
+        shell: cmd
+        run: |
+          choco install innosetup -y --no-progress
+          set "PKG=c2pool-${{ matrix.coin }}-${{ steps.ver.outputs.version }}-windows-x86_64"
+          for /f "delims=" %%i in ('powershell -NoProfile -Command "(Get-ChildItem -Path 'C:\Program Files\Microsoft Visual Studio\2022' -Recurse -Filter vc_redist.x64.exe -ErrorAction SilentlyContinue | Select-Object -First 1).FullName"') do set "VCREDIST=%%i"
+          "C:\Program Files (x86)\Inno Setup 6\ISCC.exe" installer\windows\c2pool-setup.iss ^
+            /DPACKAGE_DIR="%CD%\%PKG%" ^
+            /DVCREDIST_PATH="%VCREDIST%" ^
+            /DMyAppName=c2pool-${{ matrix.coin }} ^
+            /DMyAppVersion=${{ steps.ver.outputs.version }} ^
+            /DMyAppExeName=c2pool-${{ matrix.coin }}.exe ^
+            /DOutputBase=%PKG%-setup
+          copy "installer\windows\Output\%PKG%-setup.exe" .
+
+      - name: Upload setup.exe installer
+        if: steps.presence.outputs.exists == '1'
+        uses: actions/upload-artifact@v7
+        with:
+          name: pkg-windows-setup-${{ matrix.coin }}
+          path: c2pool-*-windows-x86_64-setup.exe
+
   # ════════════════════════════════════════════════════════════════════════════
   # Aggregate: single SHA256SUMS over every produced package; on tags,
   # attach everything to a DRAFT release (operator publishes manually).
diff --git a/installer/macos/create-dmg.sh b/installer/macos/create-dmg.sh
index 424226476..aaef451a7 100755
--- a/installer/macos/create-dmg.sh
+++ b/installer/macos/create-dmg.sh
@@ -1,27 +1,71 @@
 #!/bin/bash
 # c2pool macOS DMG builder
 #
-# Usage:
-#   ./create-dmg.sh <binary> <arch>
+# Two modes:
 #
-# Examples:
-#   ./create-dmg.sh ~/c2pool-build/build/src/c2pool/c2pool x86_64
-#   ./create-dmg.sh ~/c2pool-build/build-arm64/src/c2pool/c2pool arm64
+# 1. Staged mode (used by release.yml — wraps an already-assembled universal
+#    package directory into a .dmg):
+#      ./create-dmg.sh --staged <pkgdir> --name c2pool-ltc --version 0.2.0 --arch universal
+#    <pkgdir> must already contain the binary, lib/, web-static/, config/,
+#    start.sh — i.e. the exact tree the release matrix stages/lipo-merges.
+#    No asset copying or dylib rewriting is done here; the staged tree
+#    (which already has @executable_path-fixed dylibs) is shipped verbatim.
+#    Output: <name>-<version>-macos-<arch>.dmg
 #
-# The script expects web-static/, explorer/, config/, start.sh in the
-# repo root (same level as src/).  Output: c2pool-VERSION-macos-ARCH.dmg
+# 2. Legacy single-binary mode (per-arch, alpha compatible):
+#      ./create-dmg.sh <binary> <arch>
 
 set -e
 
-BINARY="$1"
-ARCH="${2:-$(uname -m)}"
-VERSION="0.1.1-alpha"
+STAGED=""
+NAME=""
+VERSION=""
+ARCH=""
+BINARY=""
+
+# Flag parsing (staged mode) with positional fallback (legacy mode)
+while [ $# -gt 0 ]; do
+    case "$1" in
+        --staged)  STAGED="$2"; shift 2 ;;
+        --name)    NAME="$2"; shift 2 ;;
+        --version) VERSION="$2"; shift 2 ;;
+        --arch)    ARCH="$2"; shift 2 ;;
+        *)
+            if [ -z "$BINARY" ]; then BINARY="$1"; else ARCH="$1"; fi
+            shift ;;
+    esac
+done
+
+# ── Staged mode ─────────────────────────────────────────────────────────────
+if [ -n "$STAGED" ]; then
+    [ -n "$NAME" ]    || { echo "ERROR: --name required with --staged"; exit 1; }
+    [ -n "$VERSION" ] || { echo "ERROR: --version required with --staged"; exit 1; }
+    ARCH="${ARCH:-universal}"
+    [ -d "$STAGED" ]  || { echo "ERROR: staged dir not found: $STAGED"; exit 1; }
+    VOLNAME="${NAME}-${VERSION}"
+    DMG_NAME="${NAME}-${VERSION}-macos-${ARCH}.dmg"
+    echo "Building $DMG_NAME from staged tree $STAGED"
+    rm -f "$DMG_NAME"
+    hdiutil create -volname "$VOLNAME" \
+        -srcfolder "$STAGED" \
+        -ov -format UDZO \
+        "$DMG_NAME"
+    echo ""
+    echo "Created: $DMG_NAME"
+    echo "Size: $(du -h "$DMG_NAME" | cut -f1)"
+    echo "SHA256: $(shasum -a 256 "$DMG_NAME" | cut -d' ' -f1)"
+    exit 0
+fi
+
+# ── Legacy single-binary mode (unchanged alpha behaviour) ───────────────────
+ARCH="${ARCH:-$(uname -m)}"
+VERSION="${VERSION:-0.1.1-alpha}"
 VOLNAME="c2pool-${VERSION}"
 DMG_NAME="c2pool-${VERSION}-macos-${ARCH}.dmg"
 
 if [ -z "$BINARY" ] || [ ! -f "$BINARY" ]; then
     echo "Usage: $0 <path-to-c2pool-binary> [arch]"
-    echo "  arch: x86_64 or arm64 (default: native)"
+    echo "   or: $0 --staged <pkgdir> --name <name> --version <ver> [--arch <arch>]"
     exit 1
 fi
 
@@ -83,8 +127,6 @@ STARTEOF
 fi
 
 # Copy secp256k1 dylib and fix load path
-# Detect the actual linked path from the binary (Homebrew may use Cellar paths
-# like /usr/local/opt/secp256k1/lib/ instead of /usr/local/lib/)
 LINKED_SECP=$(otool -L "$APP_DIR/c2pool" | grep secp256k1 | awk '{print $1}')
 if [ -n "$LINKED_SECP" ] && [ -f "$LINKED_SECP" ]; then
     SECP_REAL=$(realpath "$LINKED_SECP")
@@ -93,7 +135,6 @@ if [ -n "$LINKED_SECP" ] && [ -f "$LINKED_SECP" ]; then
     install_name_tool -change "$LINKED_SECP" "@executable_path/lib/libsecp256k1.6.dylib" "$APP_DIR/c2pool"
     echo "  secp256k1: $LINKED_SECP -> @executable_path/lib/libsecp256k1.6.dylib"
 else
-    # Fallback: try known paths
     if [ "$ARCH" = "arm64" ]; then
         SECP_SEARCH="/Users/user0/arm64-deps/lib /opt/homebrew/lib"
     else
@@ -103,7 +144,6 @@ else
         if [ -f "$DIR/libsecp256k1.6.dylib" ]; then
             cp "$DIR/libsecp256k1.6.dylib" "$APP_DIR/lib/libsecp256k1.6.dylib"
             ln -sf libsecp256k1.6.dylib "$APP_DIR/lib/libsecp256k1.dylib"
-            # Try all possible linked names
             for CANDIDATE in "$DIR/libsecp256k1.dylib" "$DIR/libsecp256k1.6.dylib"; do
                 install_name_tool -change "$CANDIDATE" "@executable_path/lib/libsecp256k1.6.dylib" "$APP_DIR/c2pool" 2>/dev/null || true
             done
diff --git a/installer/windows/c2pool-setup.iss b/installer/windows/c2pool-setup.iss
index 3ed0438b5..53cbe62cd 100644
--- a/installer/windows/c2pool-setup.iss
+++ b/installer/windows/c2pool-setup.iss
@@ -1,12 +1,17 @@
 ; c2pool Windows Installer — Inno Setup Script
 ;
 ; Usage:
-;   1. Build c2pool.exe and prepare the package directory (see PACKAGE_DIR below)
-;   2. Set PACKAGE_DIR and VCREDIST_PATH below to match your build environment
-;   3. Compile: "C:\...\Inno Setup 6\ISCC.exe" c2pool-setup.iss
+;   1. Build c2pool-<coin>.exe and prepare the package directory (PACKAGE_DIR)
+;   2. Compile, overriding the per-package defines on the ISCC command line:
+;        ISCC.exe c2pool-setup.iss ^
+;          /DPACKAGE_DIR=C:\path\to\c2pool-ltc-0.2.0-windows-x86_64 ^
+;          /DVCREDIST_PATH=C:\...\vc_redist.x64.exe ^
+;          /DMyAppName=c2pool-ltc /DMyAppVersion=0.2.0 ^
+;          /DMyAppExeName=c2pool-ltc.exe ^
+;          /DOutputBase=c2pool-ltc-0.2.0-windows-x86_64-setup
 ;
 ; The package directory should contain:
-;   c2pool.exe, start.bat, lib\*, web-static\*, explorer\*, config\*
+;   <exe>, start.bat, lib\*, web-static\*, explorer\*, config\*
 
 ; ── Configurable paths ──────────────────────────────────────────────────────
 ; Override on ISCC command line: /DPACKAGE_DIR=C:\path\to\package
@@ -17,12 +22,21 @@
   #define VCREDIST_PATH "C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Redist\MSVC\v143\vc_redist.x64.exe"
 #endif
 
-; ── App metadata ────────────────────────────────────────────────────────────
-#define MyAppName "c2pool"
-#define MyAppVersion "0.1.1-alpha"
+; ── App metadata (all overridable via /D for per-coin packages) ─────────────
+#ifndef MyAppName
+  #define MyAppName "c2pool"
+#endif
+#ifndef MyAppVersion
+  #define MyAppVersion "0.1.1-alpha"
+#endif
+#ifndef MyAppExeName
+  #define MyAppExeName "c2pool.exe"
+#endif
+#ifndef OutputBase
+  #define OutputBase "c2pool-" + MyAppVersion + "-windows-x86_64-setup"
+#endif
 #define MyAppPublisher "frstrtr"
 #define MyAppURL "https://github.com/frstrtr/c2pool"
-#define MyAppExeName "c2pool.exe"
 
 [Setup]
 AppId={{C2POOL-MINING-POOL}
@@ -30,9 +44,9 @@ AppName={#MyAppName}
 AppVersion={#MyAppVersion}
 AppPublisher={#MyAppPublisher}
 AppPublisherURL={#MyAppURL}
-DefaultDirName={autopf}\c2pool
-DefaultGroupName=c2pool
-OutputBaseFilename=c2pool-{#MyAppVersion}-windows-x86_64-setup
+DefaultDirName={autopf}\{#MyAppName}
+DefaultGroupName={#MyAppName}
+OutputBaseFilename={#OutputBase}
 Compression=lzma2
 SolidCompression=yes
 WizardStyle=modern
@@ -44,8 +58,8 @@ Name: "english"; MessagesFile: "compiler:Default.isl"
 
 [Files]
 ; Main binary
-Source: "{#PACKAGE_DIR}\c2pool.exe"; DestDir: "{app}"; Flags: ignoreversion
-; DLLs (secp256k1, etc.) — must be next to c2pool.exe for Windows DLL search
+Source: "{#PACKAGE_DIR}\{#MyAppExeName}"; DestDir: "{app}"; Flags: ignoreversion
+; DLLs (secp256k1, etc.) — must be next to the exe for Windows DLL search
 Source: "{#PACKAGE_DIR}\lib\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
 ; Web dashboard
 Source: "{#PACKAGE_DIR}\web-static\*"; DestDir: "{app}\web-static"; Flags: ignoreversion recursesubdirs createallsubdirs
@@ -58,19 +72,19 @@ Source: "{#PACKAGE_DIR}\start.bat"; DestDir: "{app}"; Flags: ignoreversion
 ; Transition message blobs (authority-signed V36 upgrade signal)
 Source: "{#PACKAGE_DIR}\transition_messages\*"; DestDir: "{app}\transition_messages"; Flags: ignoreversion recursesubdirs createallsubdirs skipifsourcedoesntexist
 ; VC++ Redistributable (installed silently, deleted after)
-Source: "{#VCREDIST_PATH}"; DestDir: "{tmp}"; Flags: deleteafterinstall
+Source: "{#VCREDIST_PATH}"; DestDir: "{tmp}"; Flags: deleteafterinstall skipifsourcedoesntexist
 
 [Icons]
-Name: "{group}\c2pool"; Filename: "{app}\c2pool.exe"; Parameters: "--integrated --net litecoin --dashboard-dir ""{app}\web-static"""; WorkingDir: "{app}"
-Name: "{group}\c2pool (start.bat)"; Filename: "{app}\start.bat"; WorkingDir: "{app}"
-Name: "{group}\Uninstall c2pool"; Filename: "{uninstallexe}"
-Name: "{commondesktop}\c2pool"; Filename: "{app}\c2pool.exe"; Parameters: "--integrated --net litecoin --dashboard-dir ""{app}\web-static"""; WorkingDir: "{app}"
+Name: "{group}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Parameters: "--integrated --net litecoin --dashboard-dir ""{app}\web-static"""; WorkingDir: "{app}"
+Name: "{group}\{#MyAppName} (start.bat)"; Filename: "{app}\start.bat"; WorkingDir: "{app}"
+Name: "{group}\Uninstall {#MyAppName}"; Filename: "{uninstallexe}"
+Name: "{commondesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Parameters: "--integrated --net litecoin --dashboard-dir ""{app}\web-static"""; WorkingDir: "{app}"
 
 [Run]
 ; Install VC++ Runtime (skip if already present)
-Filename: "{tmp}\vc_redist.x64.exe"; Parameters: "/install /quiet /norestart"; StatusMsg: "Installing Visual C++ Runtime..."; Flags: waituntilterminated
+Filename: "{tmp}\vc_redist.x64.exe"; Parameters: "/install /quiet /norestart"; StatusMsg: "Installing Visual C++ Runtime..."; Flags: waituntilterminated skipifdoesntexist
 ; Offer to launch after install
-Filename: "{app}\c2pool.exe"; Description: "Launch c2pool"; Flags: nowait postinstall skipifsilent; Parameters: "--integrated --net litecoin --dashboard-dir ""{app}\web-static"""
+Filename: "{app}\{#MyAppExeName}"; Description: "Launch {#MyAppName}"; Flags: nowait postinstall skipifsilent; Parameters: "--integrated --net litecoin --dashboard-dir ""{app}\web-static"""
 
 [Code]
 var