diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..65824f72
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+*.sh text eol=lf linguist-language=Shell
+*.txt eol=lf
\ No newline at end of file
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 61d7041c..89d8fe32 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,92 +8,139 @@ on:
 
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-15-intel, ubuntu-latest, macos-26]
+        include:
+          - runner: ubuntu-latest
+            os: linux
+
+          - runner: macos-15-intel
+            os: macos
+
+          - runner: macos-26
+            os: macos
 
     steps:
-    - uses: actions/checkout@v6
-    
-    - name: Install Ubuntu requirements
-      if: matrix.os == 'ubuntu-latest'
-      run: |
-        sudo apt-get update
-        sudo apt-get -y install autoconf automake bison flex gcc libelf-dev make texinfo libncurses5-dev patch python3 python-is-python3 subversion wget zlib1g-dev libtool-bin python3-dev bzip2 libgmp3-dev pkg-config
-    
-    - name: Install macOS intel requirements
-      if: matrix.os == 'macos-15-intel'
-      shell: arch -x86_64 bash -e {0}
-      env:
-        HOMEBREW_NO_AUTO_UPDATE: 1
-        HOMEBREW_NO_INSTALL_CLEANUP: 1
-        HOMEBREW_NO_ENV_HINTS: 1
-      run: |
-        brew install autoconf automake openssl libelf ncurses zlib gmp wget pkg-config texinfo
-
-    - name: Install macOS arm64 requirements
-      if: matrix.os == 'macos-26'
-      shell: bash -e {0}
-      env:
-        HOMEBREW_NO_AUTO_UPDATE: 1
-        HOMEBREW_NO_INSTALL_CLEANUP: 1
-        HOMEBREW_NO_ENV_HINTS: 1
-      run: |
-        brew install autoconf automake openssl libelf ncurses zlib gmp wget pkg-config texinfo
-
-    - name: Runs all the stages in the shell
-      if: matrix.os == 'ubuntu-latest'
-      shell: bash -e {0}
-      env:
-        BUILD_PS3TOOLCHAIN_ONLY: 1
-      run: |
-        mkdir $PWD/ps3dev
-        export PS3DEV=$PWD/ps3dev
-        export PSL1GHT=$PS3DEV
-        export PATH=$PATH:$PS3DEV/bin
-        export PATH=$PATH:$PS3DEV/ppu/bin
-        export PATH=$PATH:$PS3DEV/spu/bin
-        ./toolchain.sh
-
-    - name: Runs all the stages in the shell
-      if: matrix.os == 'macos-15-intel'
-      shell: arch -x86_64 bash -e {0}
-      env:
-        BUILD_PS3TOOLCHAIN_ONLY: 1
-      run: |
-        mkdir $PWD/ps3dev
-        export PS3DEV=$PWD/ps3dev
-        export PSL1GHT=$PS3DEV
-        export PATH=$PATH:$PS3DEV/bin
-        export PATH=$PATH:$PS3DEV/ppu/bin
-        export PATH=$PATH:$PS3DEV/spu/bin
-        ./toolchain.sh
-
-    - name: Runs all the stages in the shell
-      if: matrix.os == 'macos-26'
-      shell: bash -e {0}
-      env:
-        BUILD_PS3TOOLCHAIN_ONLY: 1
-      run: |
-        mkdir $PWD/ps3dev
-        export PS3DEV=$PWD/ps3dev
-        export PSL1GHT=$PS3DEV
-        export PATH=$PATH:$PS3DEV/bin
-        export PATH=$PATH:$PS3DEV/ppu/bin
-        export PATH=$PATH:$PS3DEV/spu/bin
-        ./toolchain.sh
-
-    - name: Get short SHA
-      id: slug
-      run: echo "sha8=$(echo ${GITHUB_SHA} | cut -c1-8)" >> "$GITHUB_OUTPUT"
-    
-    - name: Compress ps3dev folder
-      run: |
-        tar -zcvf ps3dev.tar.gz ps3dev
-
-    - uses: actions/upload-artifact@v6
-      with:
-        name: ps3dev-${{ steps.slug.outputs.sha8 }}-${{matrix.os}}
-        path: ps3dev.tar.gz
+      - uses: actions/checkout@v6
+
+      - name: Install Linux requirements
+        if: matrix.os == 'linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install \
+            autoconf automake bison flex gcc libelf-dev make texinfo \
+            libncurses5-dev patch python3 python-is-python3 subversion \
+            wget zlib1g-dev libtool-bin python3-dev bzip2 libgmp3-dev \
+            pkg-config pv libssl-dev
+
+      # ------------------------
+      # macOS dependencies
+      # ------------------------
+      - name: Install macOS requirements
+        if: matrix.os == 'macos'
+        shell: bash
+        env:
+          HOMEBREW_NO_AUTO_UPDATE: 1
+          HOMEBREW_NO_INSTALL_CLEANUP: 1
+          HOMEBREW_NO_ENV_HINTS: 1
+        run: |
+          eval "$(brew shellenv)"
+          brew install \
+            autoconf automake openssl libelf ncurses zlib gmp wget \
+            pkg-config texinfo pv
+
+      # ------------------------
+      # GLOBAL ENV SETUP
+      # ------------------------
+      - name: Setup environment (PS3DEV + base PATH)
+        shell: bash
+        run: |
+          mkdir -p "$PWD/ps3dev"
+          mkdir -p "$PWD/build"
+
+          echo "BUILD_PS3TOOLCHAIN_ONLY=1" >> $GITHUB_ENV
+          echo "NO_SAVANNAH=1" >> $GITHUB_ENV
+          echo "PS3DEV=$PWD/ps3dev" >> $GITHUB_ENV
+          echo "PSL1GHT=$PWD/ps3dev" >> $GITHUB_ENV
+          echo "PATH=$PATH:$PWD/ps3dev/bin:$PWD/ps3dev/ppu/bin:$PWD/ps3dev/spu/bin" >> $GITHUB_ENV
+
+      - name: Cache downloaded archives
+        uses: actions/cache@v5
+        with:
+          path: archives
+          key: archives-${{ hashFiles('archives/archives.txt') }}
+
+      - name: Purge unverifiable archives
+        run: |
+          while IFS= read -r line; do
+            set -- $line
+            [ "${1:-}" = "-" ] || continue
+            # 3rd field is URL, 5th field (if "->") is rename
+            url="$3"
+            rename=""
+            [ "${4:-}" = "->" ] && rename="${5:-}"
+            file="${rename:-$(basename "$url")}"
+            rm -f "archives/$file"
+          done < archives/archives.txt
+
+      # ------------------------
+      # Build steps
+      # ------------------------
+      - name: Download files
+        working-directory: ./build
+        run: ../download.sh
+
+      - name: Build Binutils (PPU)
+        run: ./toolchain.sh 001
+
+      - name: Build GCC + Newlib (PPU)
+        run: ./toolchain.sh 002
+
+      - name: Symlinks (PPU)
+        run: ./toolchain.sh 004
+
+      - name: Build Binutils (SPU)
+        run: ./toolchain.sh 005
+
+      - name: Build GCC + Newlib (SPU)
+        run: ./toolchain.sh 006
+
+      - name: Get short SHA
+        id: slug
+        run: echo "sha8=${GITHUB_SHA::8}" >> "$GITHUB_OUTPUT"
+
+      - name: Compress ps3dev folder
+        run: tar -zcvf ps3dev-${{ matrix.os }}-${{ runner.arch }}.tar.gz ps3dev
+
+      - uses: actions/upload-artifact@v7
+        with:
+          name: ps3dev-${{ steps.slug.outputs.sha8 }}-${{ matrix.os }}-${{ runner.arch }}
+          path: ps3dev-${{ matrix.os }}-${{ runner.arch }}.tar.gz
+
+  push_release:
+    if: |
+      github.event_name == 'push' &&
+      github.repository == 'ps3dev/ps3toolchain'
+    needs: build
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Download artifacts
+        uses: actions/download-artifact@v8
+        with:
+          path: artifacts
+          merge-multiple: true
+
+      - name: Create Pre-Release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          TAG="nightly-$(date -u +%Y-%m-%d)"
+          gh release delete "$TAG" --yes --cleanup-tag || true
+          gh release create "$TAG" artifacts/*.tar.gz --target ${{ GITHUB.SHA }} -t "$TAG" --prerelease
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index ae20c71b..90200203 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
-build/
-.idea/**
+/build
+/archives/*
+!/archives/archives.txt
+/ps3dev
diff --git a/Dockerfile b/Dockerfile
index 1676330d..20b88800 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,8 +12,8 @@ RUN \
   apt-get -y update && \
   apt-get -y install \
   autoconf bison build-essential ca-certificates flex git libelf-dev\
-  libgmp-dev libncurses5-dev libssl-dev libtool-bin pkg-config python-dev-is-python3 \
-  texinfo wget zlib1g-dev && \
+  libgmp-dev libncurses5-dev libssl-dev libtool-bin pkg-config \
+  texinfo wget zlib1g-dev pv && \
   apt-get -y clean autoclean autoremove && \
   rm -rf /var/lib/{apt,dpkg,cache,log}/
 
diff --git a/README.md b/README.md
index d03118e7..60260c3d 100644
--- a/README.md
+++ b/README.md
@@ -14,8 +14,8 @@
 ## Set up your environment by installing the following software:
 
   autoconf, automake, bison, flex, gcc, libelf, make, makeinfo,
-  ncurses, patch, python, subversion, wget, zlib, libtool, python,
-  bzip2, gmp, pkg-config, g++, libssl-dev, clang
+  ncurses, patch, python, subversion, wget, zlib, libtool,
+  bzip2, gmp, pkg-config, g++, libssl-dev, clang, pv
 
 ### Linux
 
diff --git a/archives/archives.txt b/archives/archives.txt
new file mode 100644
index 00000000..7fd080d8
--- /dev/null
+++ b/archives/archives.txt
@@ -0,0 +1,5 @@
+6c7af8ed1c8cf9b4b9d6e6fe09a3e1d3d479fe63984ba8b9b26bf356b6313ca9 19973532 https://sourceware.org/pub/binutils/releases/binutils-2.22.tar.bz2 -> binutils-2.22.tar.bz2
+1cf7adf8ff4b5aa49041c8734bbcf1ad18cc4c94d0029aae0f4e48841088479a 62312628 https://sourceware.org/pub/gcc/releases/gcc-7.2.0/gcc-7.2.0.tar.xz -> gcc-7.2.0.tar.xz
+c644b2847244278c57bec2ddda69d8fab5a7c767f3b9af69aa7aa3da823ff692 14571004 https://sourceware.org/pub/newlib/newlib-1.20.0.tar.gz -> newlib-1.20.0.tar.gz
+-                                                                       - https://github.com/ps3dev/psl1ght/tarball/master -> psl1ght.tar.gz
+-                                                                       - https://github.com/ps3dev/ps3libraries/tarball/master -> ps3libraries.tar.gz
diff --git a/config/get-config-scripts.sh b/config/get-config-scripts.sh
index 25d95567..73b34f86 100755
--- a/config/get-config-scripts.sh
+++ b/config/get-config-scripts.sh
@@ -33,5 +33,11 @@ fetch_config_file() {
   chmod +x "${file}"
 }
 
-fetch_config_file config.guess
-fetch_config_file config.sub
+if [ -z "${NO_SAVANNAH}" ]; then
+    fetch_config_file config.guess
+    fetch_config_file config.sub
+else
+    echo "NO_SAVANNAH is set, skipping Savannah downloads."
+    cp "${CONFIG_DIR}/config.guess" "config.guess"
+    cp "${CONFIG_DIR}/config.sub" "config.sub"
+fi
\ No newline at end of file
diff --git a/depends/check-python.sh b/depends/check-python.sh
deleted file mode 100755
index 90774e55..00000000
--- a/depends/check-python.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/sh
-# check-python.sh by Naomi Peori (naomi@peori.ca)
-
-## Check for python.
-( python --version || python -V ) 1>/dev/null 2>&1 || { echo "ERROR: Install python before continuing."; exit 1; }
-
-## Check for python-config
-pyprefix=$(python-config --prefix || python3-config --prefix)
-[ $? -eq 0 ] || { echo "ERROR: Install python-dev before continuing."; exit 1; }
-
-## Check for python header files
-( ls -1d "${pyprefix}"/include/python[23].*/Python.h || ls -1d /opt/local/include/python[23].*/Python.h ) 1>/dev/null 2>&1 || [ -f "$PYINSTALLDIR/include/Python.h" ] || { echo "ERROR: Install python-dev before continuing."; exit 1; }
diff --git a/download.sh b/download.sh
new file mode 100755
index 00000000..7807826d
--- /dev/null
+++ b/download.sh
@@ -0,0 +1,150 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")"
+cd archives || exit 1
+
+ARCHIVE="archives.txt"
+WGET="wget --tries=5 --timeout=15 --quiet --show-progress"
+
+# -----------------------------------------------------------------------------
+# verify_sha256 <file> <expected_sha>
+# Returns 0 on match, 1 on mismatch or error.
+# -----------------------------------------------------------------------------
+verify_sha256() {
+    file="$1"
+    expected="$2"
+    out=$(sha256sum "$file" 2>/dev/null) || {
+        echo "  !! sha256sum failed: $file" >&2
+        return 1
+    }
+    set -- $out
+    actual="$1"
+    if [ "$actual" != "$expected" ]; then
+        echo "  !! SHA256 mismatch: $file" >&2
+        echo "     expected: $expected" >&2
+        echo "     got:      $actual"  >&2
+        return 1
+    fi
+    return 0
+}
+
+# -----------------------------------------------------------------------------
+# fetch <url> <dest>
+# -----------------------------------------------------------------------------
+fetch() {
+    url="$1"
+    dest="$2"
+    $WGET -O "$dest" "$url" || {
+        echo "  !! Download failed: $url" >&2
+        rm -f "$dest"
+        return 1
+    }
+}
+
+# -----------------------------------------------------------------------------
+# download <sha> <size> <url> [rename]
+# -----------------------------------------------------------------------------
+download() {
+    sha="$1"
+    size="$2"
+    url="$3"
+    rename="${4:-}"
+    file="${rename:-$(basename "$url")}"
+
+    printf '==> %s\n' "$file"
+
+    # If already present, verify immediately — size alone is not enough.
+    if [ -f "$file" ]; then
+        if [ "$sha" = "-" ]; then
+            echo "  -- no checksum, skipping re-download of existing file"
+            return 0
+        fi
+        if verify_sha256 "$file" "$sha"; then
+            echo "  -- already good"
+            return 0
+        fi
+        echo "  -- existing file failed verification, re-downloading..."
+        rm -f "$file"
+    fi
+
+    # First attempt
+    fetch "$url" "$file"
+
+    # Verify, with one retry on mismatch
+    if [ "$sha" != "-" ]; then
+        if ! verify_sha256 "$file" "$sha"; then
+            echo "  -- retrying download..."
+            rm -f "$file"
+            fetch "$url" "$file"
+            verify_sha256 "$file" "$sha" || {
+                rm -f "$file"
+                echo "  !! Giving up on $file" >&2
+                return 1
+            }
+        fi
+    fi
+
+    echo "  -- ok"
+}
+
+# -----------------------------------------------------------------------------
+# parse_line <line> -> prints "sha\tsize\turl\trename" or returns 1
+# -----------------------------------------------------------------------------
+parse_line() {
+    line="$1"
+    [ -z "$line" ] && return 1
+    set -- $line
+    [ "$#" -lt 3 ] && return 1
+    sha="$1"; size="$2"; url="$3"
+    rename=""
+    shift 3
+    if [ "${1:-}" = "->" ]; then
+        rename="${2:-}"
+    fi
+    printf '%s\t%s\t%s\t%s\n' "$sha" "$size" "$url" "$rename"
+}
+
+# -----------------------------------------------------------------------------
+# run_all / run_one
+# -----------------------------------------------------------------------------
+run_all() {
+    ../config/get-config-scripts.sh
+    while IFS= read -r line; do
+        [ -z "$line" ] && continue
+        parsed=$(parse_line "$line") || continue
+        IFS="$(printf '\t')" read -r sha size url rename <<EOF
+$parsed
+EOF
+        download "$sha" "$size" "$url" "$rename"
+    done < "$ARCHIVE"
+}
+
+run_one() {
+    target="$1"
+    found=0
+    while IFS= read -r line; do
+        case "$line" in
+            *"$target"*) ;;
+            *) continue ;;
+        esac
+        parsed=$(parse_line "$line") || continue
+        IFS="$(printf '\t')" read -r sha size url rename <<EOF
+$parsed
+EOF
+        download "$sha" "$size" "$url" "$rename"
+        found=1
+        break
+    done < "$ARCHIVE"
+    [ "$found" -eq 1 ] || {
+        echo "Not found: $target" >&2
+        exit 1
+    }
+}
+
+# -----------------------------------------------------------------------------
+if [ "$#" -eq 0 ]; then
+    run_all
+else
+    run_one "$1"
+fi
\ No newline at end of file
diff --git a/scripts/001-binutils-PPU.sh b/scripts/001-binutils-PPU.sh
index 86e372ff..4d54e0f8 100755
--- a/scripts/001-binutils-PPU.sh
+++ b/scripts/001-binutils-PPU.sh
@@ -1,24 +1,27 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+set -eo pipefail
 # binutils-PPU.sh by Naomi Peori (naomi@peori.ca)
 
 BINUTILS="binutils-2.22"
+source ../utils/utils.sh
 
 if [ ! -d ${BINUTILS} ]; then
 
   ## Download the source code.
-  if [ ! -f ${BINUTILS}.tar.bz2 ]; then wget --continue https://ftpmirror.gnu.org/binutils/${BINUTILS}.tar.bz2; fi
+  ../download.sh ${BINUTILS}.tar.bz2
 
   ## Fetch config.guess and config.sub, falling back to copies if Savannah is unavailable
   ../config/get-config-scripts.sh
 
   ## Unpack the source code.
-  tar xfvj ${BINUTILS}.tar.bz2
+  echo "Unpacking ${BINUTILS}"
+  extract "../archives/${BINUTILS}.tar.bz2"
 
   ## Patch the source code.
   cat ../patches/${BINUTILS}-PS3.patch | patch -p1 -d ${BINUTILS}
 
   ## Replace config.guess and config.sub
-  cp config.guess config.sub ${BINUTILS}
+  cp ../archives/config.guess ../archives/config.sub ${BINUTILS}
 
 fi
 
@@ -47,4 +50,5 @@ cd ${BINUTILS}/build-ppu
 ## Compile and install.
 PROCS="$(nproc --all 2>&1)" || ret=$?
 if [ ! -z $ret ]; then PROCS=4; fi
-${MAKE:-make} -j $PROCS && ${MAKE:-make} libdir=host-libs/lib install
+${MAKE:-make} -j $PROCS
+${MAKE:-make} libdir=host-libs/lib MULTIOSDIR=. install
diff --git a/scripts/002-gcc-newlib-PPU.sh b/scripts/002-gcc-newlib-PPU.sh
index 4d173ba4..aab9aa11 100755
--- a/scripts/002-gcc-newlib-PPU.sh
+++ b/scripts/002-gcc-newlib-PPU.sh
@@ -1,18 +1,23 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+set -eo pipefail
 # gcc-newlib-PPU.sh by Naomi Peori (naomi@peori.ca)
 
 GCC="gcc-7.2.0"
 NEWLIB="newlib-1.20.0"
+source ../utils/utils.sh
 
 if [ ! -d ${GCC} ]; then
 
   ## Download the source code.
-  if [ ! -f ${GCC}.tar.xz ]; then wget --continue https://ftpmirror.gnu.org/gnu/gcc/${GCC}/${GCC}.tar.xz; fi
-  if [ ! -f ${NEWLIB}.tar.gz ]; then wget --continue https://sourceware.org/pub/newlib/${NEWLIB}.tar.gz; fi
+  ../download.sh ${GCC}.tar.xz
+  ../download.sh ${NEWLIB}.tar.gz
 
   ## Unpack the source code.
-  rm -Rf ${GCC} && tar xfvJ ${GCC}.tar.xz
-  rm -Rf ${NEWLIB} && tar xfvz ${NEWLIB}.tar.gz
+  echo "Unpacking ${GCC}"
+  extract "../archives/${GCC}.tar.xz"
+
+  echo "Unpacking ${NEWLIB}"
+  extract "../archives/${NEWLIB}.tar.gz"
 
   ## Patch the source code.
   cat ../patches/${GCC}-PS3.patch | patch -p1 -d ${GCC}
@@ -70,4 +75,5 @@ CFLAGS="-Wno-int-conversion" CXXFLAGS="-Wno-int-conversion" ../configure --prefi
 ## Compile and install.
 PROCS="$(nproc --all 2>&1)" || ret=$?
 if [ ! -z $ret ]; then PROCS=4; fi
-${MAKE:-make} -j $PROCS all && ${MAKE:-make} install
+${MAKE:-make} -j $PROCS all
+${MAKE:-make} MULTIOSDIR=. install
diff --git a/scripts/004-symlinks-PPU.sh b/scripts/004-symlinks-PPU.sh
index 582c244b..0bbcd71e 100755
--- a/scripts/004-symlinks-PPU.sh
+++ b/scripts/004-symlinks-PPU.sh
@@ -1,4 +1,5 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+set -eo pipefail
 # symlinks-PPU.sh by Naomi Peori (naomi@peori.ca)
 
 ## Enter the PPU directory.
diff --git a/scripts/005-binutils-SPU.sh b/scripts/005-binutils-SPU.sh
index 00d14a50..b2c2c218 100755
--- a/scripts/005-binutils-SPU.sh
+++ b/scripts/005-binutils-SPU.sh
@@ -1,24 +1,27 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+set -eo pipefail
 # binutils-SPU.sh by Naomi Peori (naomi@peori.ca)
 
 BINUTILS="binutils-2.22"
+source ../utils/utils.sh
 
 if [ ! -d ${BINUTILS} ]; then
 
   ## Download the source code.
-  if [ ! -f ${BINUTILS}.tar.bz2 ]; then wget --continue https://ftpmirror.gnu.org/binutils/${BINUTILS}.tar.bz2; fi
+  ../download.sh ${BINUTILS}.tar.bz2
 
   ## Fetch config.guess and config.sub, falling back to copies if Savannah is unavailable
   ../config/get-config-scripts.sh
 
   ## Unpack the source code.
-  tar xfvj ${BINUTILS}.tar.bz2
+  echo "Unpacking ${BINUTILS}"
+  extract "../archives/${BINUTILS}.tar.bz2"
 
   ## Patch the source code.
   cat ../patches/${BINUTILS}-PS3.patch | patch -p1 -d ${BINUTILS}
 
   ## Replace config.guess and config.sub
-  cp config.guess config.sub ${BINUTILS}
+  cp ../archives/config.guess ../archives/config.sub ${BINUTILS}
 
 fi
 
@@ -46,4 +49,5 @@ cd ${BINUTILS}/build-spu
 ## Compile and install.
 PROCS="$(nproc --all 2>&1)" || ret=$?
 if [ ! -z $ret ]; then PROCS=4; fi
-${MAKE:-make} -j $PROCS && ${MAKE:-make} libdir=host-libs/lib install
+${MAKE:-make} -j $PROCS
+${MAKE:-make} libdir=host-libs/lib MULTIOSDIR=. install
diff --git a/scripts/006-gcc-newlib-SPU.sh b/scripts/006-gcc-newlib-SPU.sh
index 837da9af..92e3b3b1 100755
--- a/scripts/006-gcc-newlib-SPU.sh
+++ b/scripts/006-gcc-newlib-SPU.sh
@@ -1,18 +1,23 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+set -eo pipefail
 # gcc-newlib-SPU.sh by Naomi Peori (naomi@peori.ca)
 
 GCC="gcc-7.2.0"
 NEWLIB="newlib-1.20.0"
+source ../utils/utils.sh
 
 if [ ! -d ${GCC} ]; then
 
   ## Download the source code.
-  if [ ! -f ${GCC}.tar.xz ]; then wget --continue https://ftpmirror.gnu.org/gnu/gcc/${GCC}/${GCC}.tar.xz; fi
-  if [ ! -f ${NEWLIB}.tar.gz ]; then wget --continue https://sourceware.org/pub/newlib/${NEWLIB}.tar.gz; fi
+  ../download.sh ${GCC}.tar.xz
+  ../download.sh ${NEWLIB}.tar.gz
 
   ## Unpack the source code.
-  rm -Rf ${GCC} && tar xfvJ ${GCC}.tar.xz
-  rm -Rf ${NEWLIB} && tar xfvz ${NEWLIB}.tar.gz
+  echo "Unpacking ${GCC}"
+  extract "../archives/${GCC}.tar.xz"
+
+  echo "Unpacking ${NEWLIB}"
+  extract "../archives/${NEWLIB}.tar.gz"
 
   ## Patch the source code.
   cat ../patches/${GCC}-PS3.patch | patch -p1 -d ${GCC}
@@ -66,4 +71,5 @@ CXXFLAGS="-Wno-int-conversion" \
 ## Compile and install.
 PROCS="$(nproc --all 2>&1)" || ret=$?
 if [ ! -z $ret ]; then PROCS=4; fi
-${MAKE:-make} -j $PROCS all && ${MAKE:-make} install
+${MAKE:-make} -j $PROCS all
+${MAKE:-make} MULTIOSDIR=. install
diff --git a/scripts/008-psl1ght.sh b/scripts/008-psl1ght.sh
index feea6760..c1118c95 100755
--- a/scripts/008-psl1ght.sh
+++ b/scripts/008-psl1ght.sh
@@ -1,4 +1,5 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+set -eo pipefail
 # psl1ght.sh by Naomi Peori (naomi@peori.ca)
 
 ## Check if we want to skip this step
@@ -7,13 +8,16 @@ if [ -n "$BUILD_PS3TOOLCHAIN_ONLY" ]; then
     exit 0
 fi
 
+source ../utils/util.sh
+
 ## Download the source code.
-wget --no-check-certificate https://github.com/ps3dev/PSL1GHT/tarball/master -O psl1ght.tar.gz
+../download.sh psl1ght.tar.gz
 
 ## Unpack the source code.
-rm -Rf psl1ght && mkdir psl1ght && tar --strip-components=1 --directory=psl1ght -xvzf psl1ght.tar.gz
-
-## Create the build directory.
+rm -Rf psl1ght
+mkdir psl1ght
+echo "Unpacking psl1ght"
+extract ../archives/psl1ght.tar.gz --strip-components=1 --directory=psl1ght
 cd psl1ght
 
 ## Compile and install.
diff --git a/scripts/009-ps3libraries.sh b/scripts/009-ps3libraries.sh
index 4ccd9bcb..d8213d3e 100755
--- a/scripts/009-ps3libraries.sh
+++ b/scripts/009-ps3libraries.sh
@@ -1,4 +1,5 @@
-#!/bin/sh -e
+#!/usr/bin/env bash
+set -eo pipefail
 # ps3libraries.sh by Naomi Peori (naomi@peori.ca)
 
 ## Check if we want to skip this step
@@ -7,11 +8,17 @@ if [ -n "$BUILD_PS3TOOLCHAIN_ONLY" ]; then
     exit 0
 fi
 
+source ../utils/util.sh
+
 ## Download the source code.
-wget --no-check-certificate https://github.com/ps3dev/ps3libraries/tarball/master -O ps3libraries.tar.gz
+../download.sh ps3libraries.tar.gz
 
 ## Unpack the source code.
-rm -Rf ps3libraries && mkdir ps3libraries && tar --strip-components=1 --directory=ps3libraries -xvzf ps3libraries.tar.gz && cd ps3libraries
+rm -Rf ps3libraries
+mkdir ps3libraries
+echo "Unpacking ps3libraries"
+extract ../archives/ps3libraries.tar.gz --strip-components=1 --directory=ps3libraries
+cd ps3libraries
 
 ## Compile and install.
 ./libraries.sh
diff --git a/toolchain-mingw.sh b/toolchain-mingw.sh
index cf9fa4ec..b14098c5 100755
--- a/toolchain-mingw.sh
+++ b/toolchain-mingw.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+set -eo pipefail
 # toolchain-mingw.sh by Miigotu (miigotu@hotmail.com)
 
 MINGW32EXPORTS=\
diff --git a/toolchain-sudo.sh b/toolchain-sudo.sh
index e4948585..3d6a1d1f 100755
--- a/toolchain-sudo.sh
+++ b/toolchain-sudo.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/usr/bin/env bash
+set -eo pipefail
 # toolchain-sudo.sh by Naomi Peori (naomi@peori.ca)
 
 ## Enter the ps3toolchain directory.
diff --git a/toolchain.sh b/toolchain.sh
index 4a341ef3..a6b1dc6a 100755
--- a/toolchain.sh
+++ b/toolchain.sh
@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/usr/bin/env bash
+set -eo pipefail
 # toolchain.sh by Naomi Peori (naomi@peori.ca)
 
 ## Enter the ps3toolchain directory.
@@ -14,7 +15,14 @@ which gmake 1>/dev/null 2>&1 && export MAKE=gmake
 DEPEND_SCRIPTS=`ls ../depends/*.sh | sort`
 
 ## Run all the depend scripts.
-for SCRIPT in $DEPEND_SCRIPTS; do "$SCRIPT" || { echo "$SCRIPT: Failed."; exit 1; } done
+failed=0
+for SCRIPT in $(ls ../depends/*.sh | sort); do
+  "$SCRIPT" || {
+    echo "$SCRIPT: Failed."
+    failed=1
+  }
+done
+[ "$failed" -ne 0 ] && exit "$failed"
 
 ## Fetch the build scripts.
 BUILD_SCRIPTS=`ls ../scripts/*.sh | sort`
@@ -28,6 +36,7 @@ if [ $1 ]; then
   for STEP in $@; do
     SCRIPT=""
     for i in $BUILD_SCRIPTS; do
+      echo ">>> Running: $SCRIPT"
       if [ `basename $i | cut -d'-' -f1` -eq $STEP ]; then
         SCRIPT=$i
         break
@@ -44,4 +53,7 @@ if [ $1 ]; then
 fi
 
 ## Run the build scripts.
-for SCRIPT in $BUILD_SCRIPTS; do "$SCRIPT" || { echo "$SCRIPT: Failed."; exit 1; } done
+for SCRIPT in $BUILD_SCRIPTS; do
+  echo ">>> Running: $SCRIPT"
+  "$SCRIPT" || { echo "$SCRIPT: Failed."; exit 1; }
+done
diff --git a/utils/gen-github-actions-tasks.sh b/utils/gen-github-actions-tasks.sh
new file mode 100755
index 00000000..5102b3f9
--- /dev/null
+++ b/utils/gen-github-actions-tasks.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+SCRIPT_DIR="../scripts"
+
+echo "      # ------------------------"
+echo "      # Build steps"
+echo "      # ------------------------"
+
+for script in "$SCRIPT_DIR"/*.sh; do
+    filename="$(basename "$script" .sh)"
+
+    # Remove numeric prefix and convert dashes to spaces
+    name="${filename#[0-9][0-9][0-9]-}"
+    name="${name//-/ }"
+
+    # Capitalize first letter of each word
+    name="$(echo "$name" | sed -E 's/(^| )([a-z])/\1\u\2/g')"
+
+    echo "      - name: Build $name"
+    echo "        working-directory: ./build"
+    echo "        run: ../scripts/$(basename "$script")"
+    echo
+done
\ No newline at end of file
diff --git a/utils/utils.sh b/utils/utils.sh
new file mode 100755
index 00000000..ea1011a9
--- /dev/null
+++ b/utils/utils.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+# Extract an archive, with pv progress if available.
+# Usage: extract <archive> [extra tar args...]
+extract() {
+    local archive="$1"
+    shift
+
+    if [ ! -f "$archive" ]; then
+        echo "extract: not a file: $archive" >&2
+        return 1
+    fi
+
+    local -a flag=()
+    case "$archive" in
+        *.tar.xz|*.txz)   flag=(-J) ;;
+        *.tar.gz|*.tgz)   flag=(-z) ;;
+        *.tar.bz2|*.tbz2) flag=(-j) ;;
+        *.tar.zst)        flag=(--zstd) ;;
+        *.tar)            flag=() ;;
+        *)
+            echo "extract: unknown archive type: $archive" >&2
+            return 1
+            ;;
+    esac
+
+    if command -v pv >/dev/null 2>&1; then
+        pv -pterab "$archive" | tar "${flag[@]}" -xf - "$@"
+    else
+        echo "  (pv not found, extracting without progress)"
+        tar "${flag[@]}" -xf "$archive" "$@"
+    fi
+}
\ No newline at end of file