diff --git a/.github/workflows/bwrap.yml b/.github/workflows/bwrap.yml
index 92cb662f..f5d63bdb 100644
--- a/.github/workflows/bwrap.yml
+++ b/.github/workflows/bwrap.yml
@@ -43,7 +43,7 @@ jobs:
           key: cache-${{ hashFiles('sys*/*/sources') }}
       - name: Run bootstrap
         id: bootstrap
-        run: ./rootfs.py --bwrap --external-sources --preserve
+        run: ./rootfs.py --bwrap --external-sources --preserve --cores 2
       - name: Archive created packages
         if: steps.bootstrap.conclusion == 'success'
         uses: actions/upload-artifact@v3
diff --git a/parts.rst b/parts.rst
index fd7cf16c..fdfb09fc 100644
--- a/parts.rst
+++ b/parts.rst
@@ -965,15 +965,16 @@ boehm-gc 8.0.4
 The Boehm-Demers-Weiser conservative garbage collector can be used as a garbage
 collecting replacement for C malloc or C++ new.
 
-guile 3.0.7
+guile 3.0.9
 ===========
 
 GNU Ubiquitous Intelligent Language for Extensions (GNU Guile) is the preferred
 extension language system for the GNU Project and features an implementation
 of the programming language Scheme.
 
-We use ``guile-psyntax-bootstrapping`` project to bootstrap Guile's ``psyntax.pp``
-without relying on pre-expanded code.
+We use ``guile-psyntax-bootstrapping`` project on Guile 3.0.7 to bootstrap
+Guile's ``psyntax.pp`` without relying on pre-expanded code. This is then
+transplanted into Guile 3.0.9.
 
 which 2.21
 ==========
diff --git a/rootfs.py b/rootfs.py
index 1321c344..193dadf1 100755
--- a/rootfs.py
+++ b/rootfs.py
@@ -29,10 +29,11 @@ def create_configuration_file(args):
     """
     config_path = os.path.join('sysa', 'bootstrap.cfg')
     with open(config_path, "w", encoding="utf_8") as config:
-        config.write("FORCE_TIMESTAMPS=" + str(args.force_timestamps) + "\n")
-        config.write("CHROOT=" + str(args.chroot or args.bwrap) + "\n")
-        config.write("CHROOT_ONLY_SYSA=" + str(args.bwrap) + "\n")
-        config.write("UPDATE_CHECKSUMS=" + str(args.update_checksums) + "\n")
+        config.write(f"FORCE_TIMESTAMPS={args.force_timestamps}\n")
+        config.write(f"CHROOT={args.chroot or args.bwrap}\n")
+        config.write(f"CHROOT_ONLY_SYSA={args.bwrap}\n")
+        config.write(f"UPDATE_CHECKSUMS={args.update_checksums}\n")
+        config.write(f"JOBS={args.cores}\n")
         config.write("DISK=sda1\n")
         if (args.bare_metal or args.qemu) and not args.kernel:
             config.write("KERNEL_BOOTSTRAP=True\n")
@@ -61,6 +62,8 @@ def main():
                         action="store_true")
     parser.add_argument("--tmpfs-size", help="Size of the tmpfs",
                         default="8G")
+    parser.add_argument("--cores", help="Cores to use for building",
+                         default=2)
     parser.add_argument("--force-timestamps",
                         help="Force all files timestamps to be 0 unix time",
                         action="store_true")
@@ -119,6 +122,10 @@ def main():
     if args.bwrap and args.tmpfs:
         raise ValueError("tmpfs cannot be used with bwrap.")
 
+    # Cores validation
+    if int(args.cores) < 1:
+        raise ValueError("Must use one or more cores.")
+
     # bootstrap.cfg
     if args.bare_metal:
         args.no_create_config = True
@@ -221,6 +228,7 @@ print(shutil.which('chroot'))
             run(args.qemu_cmd,
                 '-enable-kvm',
                 '-m', str(args.qemu_ram) + 'M',
+                '-smp', str(args.cores),
                 '-no-reboot',
                 '-hda', tmpdir.get_disk("sysc"),
                 '-nic', 'user,ipv6=off,model=e1000',
@@ -233,6 +241,7 @@ print(shutil.which('chroot'))
             run(args.qemu_cmd,
                 '-enable-kvm',
                 '-m', "4G",
+                '-smp', str(args.cores),
                 '-no-reboot',
                 '-drive', 'file=' + os.path.join(system_a.tmp_dir, 'sysa.img') + ',format=raw',
                 '-machine', 'kernel-irqchip=split',
diff --git a/sysa/SHA256SUMS.pkgs b/sysa/SHA256SUMS.pkgs
index ffd410c7..a609487f 100644
--- a/sysa/SHA256SUMS.pkgs
+++ b/sysa/SHA256SUMS.pkgs
@@ -9,7 +9,7 @@ d5fcce4baea5e11f983a7e4b7148545ab6720bb4e010898c73387f6711be67f4  autoconf-2.64_
 298dcf17a439adb306237b308e3c4ed3d376cb863ae0f0f08bfdf1f3199a548b  autoconf-2.69_0.tar.bz2
 8c2401edf1c68910005bbcb8b8e84727a46f7d9643d2ad1267bd0259078dadc4  autoconf-2.71_0.tar.bz2
 6ff691e3ddd4f3d1796d28b07a2a96691dbd9801844c99ccbe660da59dabd74b  autoconf-archive-2021.02.19_0.tar.bz2
-986995c084f3542b61938d11ddb6f1dc3b33263e4681abdce5ede2b724a1d5ea  autogen-5.18.16_0.tar.bz2
+ebd9b5168122561aca6f9c686f97cf1b61b035eccb716f36710efe72aad694f0  autogen-5.18.16_0.tar.bz2
 02a426e82a52d4a2cd7e73fe3dc5a2c58b3ed100f24a92c57e42511fd86e247c  automake-1.10.3_0.tar.bz2
 34925adeaa2876a5e068adeb17b71fe7c7105244c3cb5439d33f7406310674da  automake-1.11.2_0.tar.bz2
 a7bd12bd0c639783ce1c0e9f640cf004a87460bbda8154bc550c5e6884457b48  automake-1.15.1_0.tar.bz2
@@ -57,7 +57,7 @@ a2301d8dbbfbfcdd18444f01848e8e4366780281009640acbd3af0fab9b11aea  gcc-4.7.4_0.ta
 db3f8088a8aa74a7ff300b45c2070397ed7538fe5cc45480ea968014ccf7bc20  gperf-3.1_0.tar.bz2
 67d706423e079a9cd764fd9607027d296c0ff2380c1104006a2230a299eb2c1d  grep-2.4_0.tar.bz2
 d85cff8f9ff76533287891ec2019416fa585815e514743e5b76efd9f17f5ef5c  grep-3.7_0.tar.bz2
-adcd3633d004a608cb36e306dd887d96e2ab77bfc5d5b4d6fa93ccc871ae2285  guile-3.0.7_0.tar.bz2
+b38422d646590600444f0ff12fee6fd738baaf471338aa67899db950d3521127  guile-3.0.9_0.tar.bz2
 8d2015b87337abbf287f7a39ee4cf53514120b5d3e90a93fe7d533dcc43f14fa  help2man-1.36.4_0.tar.bz2
 3f06d1a7f1b1770d4550ff6316c7f06fd26e30bddad7c1b665f1fae80e409c8c  kbd-1.15_0.tar.bz2
 2a661da13801028f5af98e5d9f6de417c21c90df1bcef4809caf0c2094fdd8f4  kexec-tools-2.0.22_0.tar.bz2
diff --git a/sysa/autoconf-2.53/autoconf-2.53.sh b/sysa/autoconf-2.53/autoconf-2.53.sh
index 6bef136b..b0415845 100755
--- a/sysa/autoconf-2.53/autoconf-2.53.sh
+++ b/sysa/autoconf-2.53/autoconf-2.53.sh
@@ -31,7 +31,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true DESTDIR="${DESTDIR}"
+    make "${MAKEJOBS}" MAKEINFO=true DESTDIR="${DESTDIR}"
 }
 
 src_install() {
diff --git a/sysa/autoconf-2.54/autoconf-2.54.sh b/sysa/autoconf-2.54/autoconf-2.54.sh
index bd30c542..aa1a82c1 100755
--- a/sysa/autoconf-2.54/autoconf-2.54.sh
+++ b/sysa/autoconf-2.54/autoconf-2.54.sh
@@ -33,7 +33,7 @@ src_compile() {
     # Workaround for racy make dependencies
     make -C bin autom4te
     make -C lib
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/autoconf-2.55/autoconf-2.55.sh b/sysa/autoconf-2.55/autoconf-2.55.sh
index 55ad1404..b74e4d18 100755
--- a/sysa/autoconf-2.55/autoconf-2.55.sh
+++ b/sysa/autoconf-2.55/autoconf-2.55.sh
@@ -27,7 +27,7 @@ src_compile() {
     make -C bin autom4te
     make -C lib
 
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/autoconf-2.57/autoconf-2.57.sh b/sysa/autoconf-2.57/autoconf-2.57.sh
index 877a7c63..2bc710fe 100755
--- a/sysa/autoconf-2.57/autoconf-2.57.sh
+++ b/sysa/autoconf-2.57/autoconf-2.57.sh
@@ -25,7 +25,7 @@ src_compile() {
     # Workaround for racy make dependencies
     make -C bin autom4te
     make -C lib
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/autoconf-2.59/autoconf-2.59.sh b/sysa/autoconf-2.59/autoconf-2.59.sh
index bfff32d2..e880decb 100755
--- a/sysa/autoconf-2.59/autoconf-2.59.sh
+++ b/sysa/autoconf-2.59/autoconf-2.59.sh
@@ -25,7 +25,7 @@ src_compile() {
     # Workaround for racy make dependencies
     make -C bin autom4te
     make -C lib
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/autoconf-2.61/autoconf-2.61.sh b/sysa/autoconf-2.61/autoconf-2.61.sh
index 10e32ea0..b804272f 100755
--- a/sysa/autoconf-2.61/autoconf-2.61.sh
+++ b/sysa/autoconf-2.61/autoconf-2.61.sh
@@ -19,7 +19,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make -j1 MAKEINFO=true PREFIX="${PREFIX}"
 }
 
 src_install() {
diff --git a/sysa/autoconf-2.64/autoconf-2.64.sh b/sysa/autoconf-2.64/autoconf-2.64.sh
index 0ef02ba0..60ef2af9 100755
--- a/sysa/autoconf-2.64/autoconf-2.64.sh
+++ b/sysa/autoconf-2.64/autoconf-2.64.sh
@@ -18,7 +18,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/autoconf-2.69/autoconf-2.69.sh b/sysa/autoconf-2.69/autoconf-2.69.sh
index 2cafa88d..6f371102 100755
--- a/sysa/autoconf-2.69/autoconf-2.69.sh
+++ b/sysa/autoconf-2.69/autoconf-2.69.sh
@@ -18,7 +18,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/automake-1.10.3/automake-1.10.3.sh b/sysa/automake-1.10.3/automake-1.10.3.sh
index a32f5aa3..283c84a4 100755
--- a/sysa/automake-1.10.3/automake-1.10.3.sh
+++ b/sysa/automake-1.10.3/automake-1.10.3.sh
@@ -19,7 +19,7 @@ src_configure() {
 }
 
 src_compile() {
-    AUTOM4TE=autom4te-2.61 make MAKEINFO=true CC=tcc
+    AUTOM4TE=autom4te-2.61 make "${MAKEJOBS}" MAKEINFO=true CC=tcc
 }
 
 src_install() {
diff --git a/sysa/automake-1.11.2/automake-1.11.2.sh b/sysa/automake-1.11.2/automake-1.11.2.sh
index 4f6302a1..d163c857 100755
--- a/sysa/automake-1.11.2/automake-1.11.2.sh
+++ b/sysa/automake-1.11.2/automake-1.11.2.sh
@@ -20,7 +20,7 @@ src_configure() {
 }
 
 src_compile() {
-    AUTORECONF=autoreconf-2.64 AUTOM4TE=autom4te-2.64 AUTOHEADER=autoheader-2.64 AUTOCONF=autoconf-2.64 make MAKEINFO=true
+    AUTORECONF=autoreconf-2.64 AUTOM4TE=autom4te-2.64 AUTOHEADER=autoheader-2.64 AUTOCONF=autoconf-2.64 make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/automake-1.15.1/automake-1.15.1.sh b/sysa/automake-1.15.1/automake-1.15.1.sh
index 91959800..41c8b840 100755
--- a/sysa/automake-1.15.1/automake-1.15.1.sh
+++ b/sysa/automake-1.15.1/automake-1.15.1.sh
@@ -22,7 +22,7 @@ src_configure() {
 }
 
 src_compile() {
-    AUTORECONF=autoreconf-2.69 AUTOM4TE=autom4te-2.69 AUTOHEADER=autoheader-2.69 AUTOCONF=autoconf-2.69 make MAKEINFO=true
+    AUTORECONF=autoreconf-2.69 AUTOM4TE=autom4te-2.69 AUTOHEADER=autoheader-2.69 AUTOCONF=autoconf-2.69 make -j1 MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/automake-1.7.8/automake-1.7.8.sh b/sysa/automake-1.7.8/automake-1.7.8.sh
index da1ee381..e6bc3e0c 100755
--- a/sysa/automake-1.7.8/automake-1.7.8.sh
+++ b/sysa/automake-1.7.8/automake-1.7.8.sh
@@ -13,7 +13,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/automake-1.7/automake-1.7.sh b/sysa/automake-1.7/automake-1.7.sh
index d5e6c1f0..a8c2fd33 100755
--- a/sysa/automake-1.7/automake-1.7.sh
+++ b/sysa/automake-1.7/automake-1.7.sh
@@ -15,7 +15,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/automake-1.8.5/automake-1.8.5.sh b/sysa/automake-1.8.5/automake-1.8.5.sh
index fcecab9b..253b1948 100755
--- a/sysa/automake-1.8.5/automake-1.8.5.sh
+++ b/sysa/automake-1.8.5/automake-1.8.5.sh
@@ -13,7 +13,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/automake-1.9.6/automake-1.9.6.sh b/sysa/automake-1.9.6/automake-1.9.6.sh
index de4e5386..b39893cb 100755
--- a/sysa/automake-1.9.6/automake-1.9.6.sh
+++ b/sysa/automake-1.9.6/automake-1.9.6.sh
@@ -14,7 +14,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/bash-2.05b/bash-2.05b.sh b/sysa/bash-2.05b/bash-2.05b.sh
index c6efb713..7104b41d 100755
--- a/sysa/bash-2.05b/bash-2.05b.sh
+++ b/sysa/bash-2.05b/bash-2.05b.sh
@@ -39,6 +39,10 @@ src_configure() {
         bash_cv_dev_fd=whacky
 }
 
+src_compile() {
+    make -j1
+}
+
 src_install() {
     install -D bash "${DESTDIR}${PREFIX}/bin/bash"
     # Work around weird symlink bug
diff --git a/sysa/bc-1.07.1/bc-1.07.1.sh b/sysa/bc-1.07.1/bc-1.07.1.sh
index b881d2db..c4f6e9bc 100755
--- a/sysa/bc-1.07.1/bc-1.07.1.sh
+++ b/sysa/bc-1.07.1/bc-1.07.1.sh
@@ -18,4 +18,3 @@ src_configure() {
     ./configure --prefix="${PREFIX}" \
         --build=i386-unknown-linux-musl
 }
-
diff --git a/sysa/binutils-2.30/binutils-2.30.sh b/sysa/binutils-2.30/binutils-2.30.sh
index bdffe658..ef794a99 100755
--- a/sysa/binutils-2.30/binutils-2.30.sh
+++ b/sysa/binutils-2.30/binutils-2.30.sh
@@ -88,7 +88,7 @@ src_configure() {
 src_compile() {
     make -C bfd headers
     for dir in libiberty zlib bfd opcodes binutils gas gprof ld; do
-        make -C $dir tooldir=${PREFIX} CPPFLAGS="-DPLUGIN_LITTLE_ENDIAN" MAKEINFO=true
+        make "${MAKEJOBS}" -C $dir tooldir=${PREFIX} CPPFLAGS="-DPLUGIN_LITTLE_ENDIAN" MAKEINFO=true
     done
 }
 
diff --git a/sysa/bison-3.4.1/stage1.sh b/sysa/bison-3.4.1/stage1.sh
index c6b04e8d..8eac871e 100755
--- a/sysa/bison-3.4.1/stage1.sh
+++ b/sysa/bison-3.4.1/stage1.sh
@@ -19,3 +19,7 @@ src_prepare() {
     cp ../../mk/lib.mk lib/Makefile
     cp ../../mk/src.mk src/Makefile
 }
+
+src_compile() {
+    make -j1 -f Makefile PREFIX="${PREFIX}"
+}
diff --git a/sysa/bison-3.4.1/stage2.sh b/sysa/bison-3.4.1/stage2.sh
index 9ae813da..517422b9 100755
--- a/sysa/bison-3.4.1/stage2.sh
+++ b/sysa/bison-3.4.1/stage2.sh
@@ -19,3 +19,7 @@ src_prepare() {
     cp ../../mk/lib.mk lib/Makefile
     cp ../../mk/src.mk src/Makefile
 }
+
+src_compile() {
+    make -j1 -f Makefile PREFIX="${PREFIX}"
+}
diff --git a/sysa/bison-3.4.1/stage3.sh b/sysa/bison-3.4.1/stage3.sh
index 22373a6d..e863adff 100755
--- a/sysa/bison-3.4.1/stage3.sh
+++ b/sysa/bison-3.4.1/stage3.sh
@@ -16,3 +16,7 @@ src_prepare() {
     cp ../../mk/lib.mk lib/Makefile
     cp ../../mk/src.mk src/Makefile
 }
+
+src_compile() {
+    make -j1 -f Makefile PREFIX="${PREFIX}"
+}
diff --git a/sysa/bzip2-1.0.8/bzip2-1.0.8.sh b/sysa/bzip2-1.0.8/bzip2-1.0.8.sh
index dc08fabb..fbda6c34 100755
--- a/sysa/bzip2-1.0.8/bzip2-1.0.8.sh
+++ b/sysa/bzip2-1.0.8/bzip2-1.0.8.sh
@@ -9,7 +9,7 @@ src_prepare() {
 }
 
 src_compile() {
-   make CC=tcc AR="tcc -ar" bzip2
+   make "${MAKEJOBS}" CC=tcc AR="tcc -ar" bzip2
 }
 
 src_install() {
diff --git a/sysa/findutils-4.2.33/findutils-4.2.33.sh b/sysa/findutils-4.2.33/findutils-4.2.33.sh
index 477624b7..7669d942 100755
--- a/sysa/findutils-4.2.33/findutils-4.2.33.sh
+++ b/sysa/findutils-4.2.33/findutils-4.2.33.sh
@@ -25,7 +25,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true DESTDIR="${DESTDIR}"
+    make "${MAKEJOBS}" MAKEINFO=true DESTDIR="${DESTDIR}"
 }
 
 src_install() {
diff --git a/sysa/flex-2.5.11/flex-2.5.11.sh b/sysa/flex-2.5.11/flex-2.5.11.sh
index 9e060cbb..70b01596 100755
--- a/sysa/flex-2.5.11/flex-2.5.11.sh
+++ b/sysa/flex-2.5.11/flex-2.5.11.sh
@@ -11,6 +11,10 @@ src_prepare() {
     rm parse.c parse.h scan.c skel.c
 }
 
+src_compile() {
+    make -j1 PREFIX="${PREFIX}"
+}
+
 src_install() {
     if test -d /lex; then
         # Remove lex, later make install will symlink lex to flex
diff --git a/sysa/flex-2.6.4/flex-2.6.4.sh b/sysa/flex-2.6.4/flex-2.6.4.sh
index 022b84e2..6fa9def0 100755
--- a/sysa/flex-2.6.4/flex-2.6.4.sh
+++ b/sysa/flex-2.6.4/flex-2.6.4.sh
@@ -12,7 +12,7 @@ src_prepare() {
 
 src_compile() {
     cd src
-    default
+    make -j1 PREFIX="${PREFIX}"
     cd ..
 }
 
diff --git a/sysa/gcc-4.0.4/pass1.sh b/sysa/gcc-4.0.4/pass1.sh
index c20fe731..acae7d16 100755
--- a/sysa/gcc-4.0.4/pass1.sh
+++ b/sysa/gcc-4.0.4/pass1.sh
@@ -93,7 +93,7 @@ src_compile() {
     mkdir build/gcc/include
     ln -s ../../../gcc/gsyslimits.h build/gcc/include/syslimits.h
     for dir in libiberty libcpp gcc; do
-        make -C build/$dir LIBGCC2_INCLUDES=-I"${PREFIX}/include" STMP_FIXINC=
+        make "${MAKEJOBS}" -C build/$dir LIBGCC2_INCLUDES=-I"${PREFIX}/include" STMP_FIXINC=
     done
 }
 
diff --git a/sysa/gcc-4.0.4/pass2.sh b/sysa/gcc-4.0.4/pass2.sh
index 49d3e784..bcae5474 100755
--- a/sysa/gcc-4.0.4/pass2.sh
+++ b/sysa/gcc-4.0.4/pass2.sh
@@ -87,7 +87,7 @@ src_configure() {
 src_compile() {
     ln -s . build/build-i386-unknown-linux-musl
     for dir in libiberty libcpp gcc; do
-        make -C build/$dir LIBGCC2_INCLUDES=-I"${PREFIX}/include" STMP_FIXINC=
+        make "${MAKEJOBS}" -C build/$dir LIBGCC2_INCLUDES=-I"${PREFIX}/include" STMP_FIXINC=
     done
 }
 
diff --git a/sysa/help2man-1.36.4/help2man-1.36.4.sh b/sysa/help2man-1.36.4/help2man-1.36.4.sh
index 96fa8016..737c19b9 100755
--- a/sysa/help2man-1.36.4/help2man-1.36.4.sh
+++ b/sysa/help2man-1.36.4/help2man-1.36.4.sh
@@ -18,7 +18,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/helpers.sh b/sysa/helpers.sh
index 7b9f1eaf..ef5fde8a 100755
--- a/sysa/helpers.sh
+++ b/sysa/helpers.sh
@@ -321,7 +321,7 @@ default_src_configure() {
 
 # Default function for compiling source. It simply runs make without any parameters.
 default_src_compile() {
-    make -f Makefile PREFIX="${PREFIX}"
+    make "${MAKEJOBS}" -f Makefile PREFIX="${PREFIX}"
 }
 
 # Default installing function. PREFIX should be set by run.sh script.
diff --git a/sysa/kbd-1.15/kbd-1.15.sh b/sysa/kbd-1.15/kbd-1.15.sh
index 39e5287a..98e14589 100755
--- a/sysa/kbd-1.15/kbd-1.15.sh
+++ b/sysa/kbd-1.15/kbd-1.15.sh
@@ -22,7 +22,7 @@ src_configure() {
 src_compile() {
     # Missing dependency in Makefile
     flex -o src/analyze.c src/analyze.l
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/libtool-2.2.4/libtool-2.2.4.sh b/sysa/libtool-2.2.4/libtool-2.2.4.sh
index d1bcf635..3abb60df 100755
--- a/sysa/libtool-2.2.4/libtool-2.2.4.sh
+++ b/sysa/libtool-2.2.4/libtool-2.2.4.sh
@@ -29,7 +29,7 @@ src_configure() {
 }
 
 src_compile() {
-    make AUTOM4TE=autom4te-2.61 MAKEINFO=true
+    make "${MAKEJOBS}" AUTOM4TE=autom4te-2.61 MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysa/linux-4.9.10/linux-4.9.10.sh b/sysa/linux-4.9.10/linux-4.9.10.sh
index 09e72d9e..4d0cf628 100644
--- a/sysa/linux-4.9.10/linux-4.9.10.sh
+++ b/sysa/linux-4.9.10/linux-4.9.10.sh
@@ -50,8 +50,8 @@ src_compile() {
     generate_autoconf_h
 
     # Allow use of patched initramfs_list.sh (which is required anyway)
-    make ARCH=i386 prepare
-    PATH="${PWD}/usr:${PATH}" make ARCH=i386
+    make "${MAKEJOBS}" ARCH=i386 prepare
+    PATH="${PWD}/usr:${PATH}" make "${MAKEJOBS}" ARCH=i386
 
     # Clear up more space
     find . -name '*.o' -delete
diff --git a/sysa/make-3.82/make-3.82.sh b/sysa/make-3.82/make-3.82.sh
index d9792b63..3cb057c2 100755
--- a/sysa/make-3.82/make-3.82.sh
+++ b/sysa/make-3.82/make-3.82.sh
@@ -20,7 +20,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO="true"
+    make "${MAKEJOBS}" MAKEINFO="true"
 }
 
 src_install() {
diff --git a/sysa/musl-1.1.24/binutils-rebuild.sh b/sysa/musl-1.1.24/binutils-rebuild.sh
index b0700bf4..9058cc57 100755
--- a/sysa/musl-1.1.24/binutils-rebuild.sh
+++ b/sysa/musl-1.1.24/binutils-rebuild.sh
@@ -24,7 +24,7 @@ src_configure() {
 }
 
 src_compile() {
-    make PREFIX="${PREFIX}" CROSS_COMPILE= CFLAGS="-DSYSCALL_NO_TLS" AS_CMD='as -o $@ $<'
+    make "${MAKEJOBS}" PREFIX="${PREFIX}" CROSS_COMPILE= CFLAGS="-DSYSCALL_NO_TLS" AS_CMD='as -o $@ $<'
 }
 
 src_install() {
diff --git a/sysa/musl-1.1.24/musl-1.1.24.sh b/sysa/musl-1.1.24/musl-1.1.24.sh
index be498d0f..342b8a42 100755
--- a/sysa/musl-1.1.24/musl-1.1.24.sh
+++ b/sysa/musl-1.1.24/musl-1.1.24.sh
@@ -27,5 +27,5 @@ src_configure() {
 }
 
 src_compile() {
-    make CROSS_COMPILE= AR="tcc -ar" RANLIB=true CFLAGS="-DSYSCALL_NO_TLS"
+    make "${MAKEJOBS}" CROSS_COMPILE= AR="tcc -ar" RANLIB=true CFLAGS="-DSYSCALL_NO_TLS"
 }
diff --git a/sysa/musl-1.2.3/musl-1.2.3.sh b/sysa/musl-1.2.3/musl-1.2.3.sh
index 0640cf0c..d6de474a 100755
--- a/sysa/musl-1.2.3/musl-1.2.3.sh
+++ b/sysa/musl-1.2.3/musl-1.2.3.sh
@@ -29,5 +29,5 @@ src_configure() {
 }
 
 src_compile() {
-    make CROSS_COMPILE=
+    make "${MAKEJOBS}" CROSS_COMPILE=
 }
diff --git a/sysa/perl-5.6.2/perl-5.6.2.sh b/sysa/perl-5.6.2/perl-5.6.2.sh
index 72c3df9a..2e29ff5f 100755
--- a/sysa/perl-5.6.2/perl-5.6.2.sh
+++ b/sysa/perl-5.6.2/perl-5.6.2.sh
@@ -34,6 +34,10 @@ src_prepare() {
     sed -i "s#/usr/include/errno.h#${PREFIX}/include/musl/bits/errno.h#" ext/Errno/Errno_pm.PL
 }
 
+src_compile() {
+    make -j1 PREFIX="${PREFIX}"
+}
+
 src_install() {
     # Remove old perl
     rm -rf "${PREFIX}"/lib/perl5/
diff --git a/sysa/run.sh b/sysa/run.sh
index 4fa17fdc..e177d054 100755
--- a/sysa/run.sh
+++ b/sysa/run.sh
@@ -21,6 +21,13 @@ SRCDIR="${srcdir}"
 # shellcheck source=sysa/helpers.sh
 . helpers.sh
 
+if [ "${KERNEL_BOOTSTRAP}" ]; then
+    # Fiwix does not support SMP
+    MAKEJOBS="-j1"
+else
+    MAKEJOBS="-j${JOBS}"
+fi
+
 # Ask some questions
 echo
 echo "Now that bash has been built, there are potentially some questions for you!"
@@ -178,6 +185,7 @@ SOURCES=${SOURCES}
 DESTDIR=${DESTDIR}
 DISTFILES=${DISTFILES}
 SRCDIR=${SRCDIR}
+MAKEJOBS=${MAKEJOBS}
 EOF
 
 exec env -i bash run2.sh
diff --git a/sysa/sed-4.0.9/sed-4.0.9.sh b/sysa/sed-4.0.9/sed-4.0.9.sh
index 1b8b85d6..47a8350a 100755
--- a/sysa/sed-4.0.9/sed-4.0.9.sh
+++ b/sysa/sed-4.0.9/sed-4.0.9.sh
@@ -8,6 +8,10 @@ src_prepare() {
     touch config.h
 }
 
+src_compile() {
+    make -j1 PREFIX="${PREFIX}"
+}
+
 src_install() {
     default
 }
diff --git a/sysc/autoconf-2.71/autoconf-2.71.sh b/sysc/autoconf-2.71/autoconf-2.71.sh
index f43ac739..5178eef7 100755
--- a/sysc/autoconf-2.71/autoconf-2.71.sh
+++ b/sysc/autoconf-2.71/autoconf-2.71.sh
@@ -15,7 +15,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/autoconf-archive-2021.02.19/autoconf-archive-2021.02.19.sh b/sysc/autoconf-archive-2021.02.19/autoconf-archive-2021.02.19.sh
index e68cf4e6..db97079c 100755
--- a/sysc/autoconf-archive-2021.02.19/autoconf-archive-2021.02.19.sh
+++ b/sysc/autoconf-archive-2021.02.19/autoconf-archive-2021.02.19.sh
@@ -11,7 +11,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true DESTDIR="${DESTDIR}"
+    make "${MAKEJOBS}" MAKEINFO=true DESTDIR="${DESTDIR}"
 }
 
 src_install() {
diff --git a/sysc/autogen-5.18.16/autogen-5.18.16.sh b/sysc/autogen-5.18.16/autogen-5.18.16.sh
index 5be98f0d..ec4ca812 100755
--- a/sysc/autogen-5.18.16/autogen-5.18.16.sh
+++ b/sysc/autogen-5.18.16/autogen-5.18.16.sh
@@ -47,7 +47,7 @@ src_compile() {
 	--disable-shared \
 	--enable-timeout=15
     touch doc/agdoc.texi # build later
-    make CFLAGS=-Wno-error
+    make -j1 CFLAGS=-Wno-error
 
     # Fix non-reproducible man-page
     awk '{gsub("\\(/tmp/.*", "", $7); print}' agen5/autogen.1 > autogen.1
diff --git a/sysc/automake-1.16.3/automake-1.16.3.sh b/sysc/automake-1.16.3/automake-1.16.3.sh
index 1d421167..b535f11b 100755
--- a/sysc/automake-1.16.3/automake-1.16.3.sh
+++ b/sysc/automake-1.16.3/automake-1.16.3.sh
@@ -15,7 +15,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/bash-5.2.15/bash-5.2.15.sh b/sysc/bash-5.2.15/bash-5.2.15.sh
index a6e6749e..d8e69ef0 100755
--- a/sysc/bash-5.2.15/bash-5.2.15.sh
+++ b/sysc/bash-5.2.15/bash-5.2.15.sh
@@ -47,6 +47,10 @@ src_configure() {
         bash_cv_dev_fd=whacky
 }
 
+src_compile() {
+    make -j1 PREFIX="${PREFIX}"
+}
+
 src_install() {
     install -D bash "${DESTDIR}${PREFIX}/bin/bash"
     # Work around weird symlink bug
diff --git a/sysc/binutils-2.38/binutils-2.38.sh b/sysc/binutils-2.38/binutils-2.38.sh
index 5c4eef0d..cb07d5f7 100755
--- a/sysc/binutils-2.38/binutils-2.38.sh
+++ b/sysc/binutils-2.38/binutils-2.38.sh
@@ -89,7 +89,7 @@ src_configure() {
 src_compile() {
     make -C bfd headers
     for dir in libiberty bfd opcodes libctf binutils gas gprof ld; do
-        make -C $dir tooldir=${PREFIX} CFLAGS="-std=c99"
+        make "${MAKEJOBS}" -C $dir tooldir=${PREFIX} CFLAGS="-std=c99"
     done
 }
 
diff --git a/sysc/bison-2.3/bison-2.3.sh b/sysc/bison-2.3/bison-2.3.sh
index 98e76fe1..bec31dd6 100755
--- a/sysc/bison-2.3/bison-2.3.sh
+++ b/sysc/bison-2.3/bison-2.3.sh
@@ -26,7 +26,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make -j1 MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/bison-3.4.2/bison-3.4.2.sh b/sysc/bison-3.4.2/bison-3.4.2.sh
index 8a598a43..12dfcc80 100755
--- a/sysc/bison-3.4.2/bison-3.4.2.sh
+++ b/sysc/bison-3.4.2/bison-3.4.2.sh
@@ -27,7 +27,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make -j1 MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/coreutils-8.32/coreutils-8.32.sh b/sysc/coreutils-8.32/coreutils-8.32.sh
index c55813e4..6bf52160 100755
--- a/sysc/coreutils-8.32/coreutils-8.32.sh
+++ b/sysc/coreutils-8.32/coreutils-8.32.sh
@@ -42,7 +42,7 @@ src_configure() {
 }
 
 src_compile() {
-    make PREFIX="${PREFIX}" MAKEINFO="true"
+    make "${MAKEJOBS}" PREFIX="${PREFIX}" MAKEINFO="true"
 }
 
 src_install() {
diff --git a/sysc/flex-2.5.33/flex-2.5.33.sh b/sysc/flex-2.5.33/flex-2.5.33.sh
index c1dd0efe..a3e18812 100755
--- a/sysc/flex-2.5.33/flex-2.5.33.sh
+++ b/sysc/flex-2.5.33/flex-2.5.33.sh
@@ -22,7 +22,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/gc-8.0.4/gc-8.0.4.sh b/sysc/gc-8.0.4/gc-8.0.4.sh
index 3a5c9221..8eedb674 100755
--- a/sysc/gc-8.0.4/gc-8.0.4.sh
+++ b/sysc/gc-8.0.4/gc-8.0.4.sh
@@ -11,6 +11,6 @@ src_configure() {
     ./configure \
         --prefix="${PREFIX}" \
         --libdir="${LIBDIR}" \
-	--disable-shared \
+        --disable-shared \
         CFLAGS='-D_GNU_SOURCE -DNO_GETCONTEXT -DSEARCH_FOR_DATA_START -DUSE_MMAP -DHAVE_DL_ITERATE_PHDR'
 }
diff --git a/sysc/gcc-4.7.4/gcc-4.7.4.sh b/sysc/gcc-4.7.4/gcc-4.7.4.sh
index e92fab6f..21027ecc 100755
--- a/sysc/gcc-4.7.4/gcc-4.7.4.sh
+++ b/sysc/gcc-4.7.4/gcc-4.7.4.sh
@@ -125,15 +125,15 @@ src_compile() {
     ln -s . build/build-i386-unknown-linux-musl
     for dir in libiberty libcpp libdecnumber gcc; do
         # We have makeinfo now but it is not happy with gcc .info files, so skip it
-        make -C build/$dir LIBGCC2_INCLUDES=-I"${PREFIX}/include" \
+        make "${MAKEJOBS}" -C build/$dir LIBGCC2_INCLUDES=-I"${PREFIX}/include" \
             STMP_FIXINC= GMPLIBS="-lmpc -lmpfr -lgmp" MAKEINFO=true
     done
 
     # host_subdir is necessary because we have slightly different build directory layout
-    make -C build/libgcc PATH="${PATH}:../gcc" CC=../gcc/xgcc \
+    make "${MAKEJOBS}" -C build/libgcc PATH="${PATH}:../gcc" CC=../gcc/xgcc \
         host_subdir=build CFLAGS="-I../gcc/include -I/${PREFIX}/include"
 
-    make -C build/libstdc++-v3 PATH="${PATH}:${PWD}/build/gcc" \
+    make "${MAKEJOBS}" -C build/libstdc++-v3 PATH="${PATH}:${PWD}/build/gcc" \
         CXXFLAGS="-I${PWD}/build/gcc/include -I ${PREFIX}/include"
 }
 
diff --git a/sysc/gettext-0.21/gettext-0.21.sh b/sysc/gettext-0.21/gettext-0.21.sh
index 000bc767..6177a943 100755
--- a/sysc/gettext-0.21/gettext-0.21.sh
+++ b/sysc/gettext-0.21/gettext-0.21.sh
@@ -21,7 +21,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true CFLAGS="-I${PWD}/libtextstyle/lib"
+    make "${MAKEJOBS}" MAKEINFO=true CFLAGS="-I${PWD}/libtextstyle/lib"
 }
 
 src_install() {
diff --git a/sysc/gmp-6.2.1/gmp-6.2.1.sh b/sysc/gmp-6.2.1/gmp-6.2.1.sh
index 83b9a063..7ce91021 100755
--- a/sysc/gmp-6.2.1/gmp-6.2.1.sh
+++ b/sysc/gmp-6.2.1/gmp-6.2.1.sh
@@ -23,7 +23,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true DESTDIR="${DESTDIR}"
+    make "${MAKEJOBS}" MAKEINFO=true DESTDIR="${DESTDIR}"
 }
 
 src_install() {
diff --git a/sysc/guile-3.0.7/guile-3.0.7.sh b/sysc/guile-3.0.9/guile-3.0.9.sh
similarity index 59%
rename from sysc/guile-3.0.7/guile-3.0.7.sh
rename to sysc/guile-3.0.9/guile-3.0.9.sh
index 053c04c5..205af11a 100755
--- a/sysc/guile-3.0.7/guile-3.0.7.sh
+++ b/sysc/guile-3.0.9/guile-3.0.9.sh
@@ -4,17 +4,30 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-src_prepare() {
-    default
+# guile-psyntax-bootstrapping only supports Guile 3.0.7
+# We need Guile 3.0.8 or later in order to have reproducible builds when
+# parallelism (-jX) is enabled.
+#
+# To work around this issue, we;
+# 1. run guile-psyntax-bootstrapping on Guile 3.0.7
+# 2. take psyntax-pp.scm from Guile 3.0.7 and transplant into 3.0.9
+# 3. compile guile 3.0.9
 
+common_prepare() {
     find . -name '*.info*' -delete
-
-    ../../import-gnulib.sh
+    rm -r prebuilt/*/ice-9
 
     # Remove buildstamp
     sed -i "s/\`date -u +'%Y-%m-%d %T'.*\`/1970-01-01 00:00:00/" libguile/Makefile.am
 
     autoreconf-2.71 -fi
+}
+
+src_prepare() {
+    # First, prepare Guile 3.0.7
+    cd ../guile-3.0.7
+    ../../import-gnulib-3.0.7.sh
+    common_prepare
 
     # pp-syntax bootstrap: remove pre-gen file
     sha256sum module/ice-9/psyntax-pp.scm | tee psyntax-pp.sha256
@@ -28,19 +41,30 @@ src_prepare() {
     cp psyntax.scm psyntax-patched.scm
     patch <../../../guile-psyntax-bootstrapping-guile-3.0.7/stage2.patch
     cd ../..
+
+    # Now, Guile 3.0.9
+    cd ../guile-3.0.9
+    default
+    ../../import-gnulib.sh
+    common_prepare
 }
 
 src_configure() {
-    PKG_CONFIG_PATH="${LIBDIR}/pkgconfig" ./configure \
-        --prefix="${PREFIX}" \
-        --libdir="${LIBDIR}" \
-        --build=i386-unknown-linux-musl \
-        --disable-shared \
-        --disable-jit
+    for d in . ../guile-3.0.7; do
+        pushd "${d}"
+        PKG_CONFIG_PATH="${LIBDIR}/pkgconfig" ./configure \
+            --prefix="${PREFIX}" \
+            --libdir="${LIBDIR}" \
+            --build=i386-unknown-linux-musl \
+            --disable-shared \
+            --disable-jit
+        popd
+    done
 }
 
 src_compile() {
     # pp-syntax: rebuild
+    pushd ../guile-3.0.7
     make config.h
     make libguile/scmconfig.h
     make .version
@@ -56,6 +80,10 @@ src_compile() {
 
     # Note that on 32-bit systems psyntax-pp is not identical to the original
     # and some identifier names are different.
+    popd
+
+    # Transplant psyntax-pp.scm
+    cp -f ../guile-3.0.7/module/ice-9/psyntax-pp.scm module/ice-9/
 
     # Now proceed with the build
     default
diff --git a/sysc/guile-3.0.7/import-gnulib.sh b/sysc/guile-3.0.9/import-gnulib-3.0.7.sh
similarity index 100%
rename from sysc/guile-3.0.7/import-gnulib.sh
rename to sysc/guile-3.0.9/import-gnulib-3.0.7.sh
diff --git a/sysc/guile-3.0.9/import-gnulib.sh b/sysc/guile-3.0.9/import-gnulib.sh
new file mode 100755
index 00000000..095c5f56
--- /dev/null
+++ b/sysc/guile-3.0.9/import-gnulib.sh
@@ -0,0 +1,129 @@
+#!/bin/sh
+
+# SPDX-FileCopyrightText: 2023 fosslinux <fosslinux@aussies.space>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+../gnulib-356a414e/gnulib-tool --import --local-dir=gnulib-local \
+    --lib=libgnu \
+    --source-base=lib \
+    --m4-base=m4 \
+    --doc-base=doc \
+    --tests-base=tests \
+    --aux-dir=build-aux \
+    --lgpl=3 \
+    --conditional-dependencies \
+    --libtool \
+    --macro-prefix=gl \
+    --no-vc-files \
+    --avoid=lock \
+    --avoid=unistr/base \
+    --avoid=unistr/u8-mbtouc \
+    --avoid=unistr/u8-mbtouc-unsafe \
+    --avoid=unistr/u8-mbtoucr \
+    --avoid=unistr/u8-prev \
+    --avoid=unistr/u8-uctomb \
+    --avoid=unitypes \
+    accept4 \
+    alignof \
+    alloca-opt \
+    announce-gen \
+    autobuild \
+    bind \
+    byteswap \
+    c-strcase \
+    canonicalize-lgpl \
+    ceil \
+    clock-time \
+    close \
+    connect \
+    copysign \
+    dirfd \
+    dirname-lgpl \
+    duplocale \
+    environ \
+    extensions \
+    flexmember \
+    flock \
+    floor \
+    fpieee \
+    frexp \
+    fstat \
+    fsync \
+    full-read \
+    full-write \
+    func \
+    gendocs \
+    getaddrinfo \
+    gethostname \
+    getlogin \
+    getpeername \
+    getsockname \
+    getsockopt \
+    git-version-gen \
+    gitlog-to-changelog \
+    gnu-web-doc-update \
+    gnupload \
+    havelib \
+    iconv_open-utf \
+    inet_ntop \
+    inet_pton \
+    isfinite \
+    isinf \
+    isnan \
+    ldexp \
+    lib-symbol-versions \
+    lib-symbol-visibility \
+    libunistring \
+    link \
+    listen \
+    localcharset \
+    locale \
+    log1p \
+    lstat \
+    maintainer-makefile \
+    malloc-gnu \
+    malloca \
+    mkdir \
+    mkostemp \
+    nl_langinfo \
+    nproc \
+    nstrftime \
+    open \
+    pipe-posix \
+    pipe2 \
+    poll \
+    posix_spawn \
+    posix_spawn_file_actions_addclose \
+    posix_spawn_file_actions_adddup2 \
+    posix_spawn_file_actions_addopen \
+    posix_spawn_file_actions_init \
+    posix_spawnp \
+    putenv \
+    readlink \
+    recv \
+    recvfrom \
+    regex \
+    rename \
+    rmdir \
+    select \
+    send \
+    sendto \
+    setenv \
+    setsockopt \
+    shutdown \
+    socket \
+    stat-time \
+    stdlib \
+    striconveh \
+    string \
+    sys_select \
+    sys_stat \
+    time \
+    times \
+    trunc \
+    unistd \
+    verify \
+    vsnprintf \
+    warnings \
+    wchar
diff --git a/sysc/guile-3.0.7/sources b/sysc/guile-3.0.9/sources
similarity index 61%
rename from sysc/guile-3.0.7/sources
rename to sysc/guile-3.0.9/sources
index 2fb53f87..4aebe752 100644
--- a/sysc/guile-3.0.7/sources
+++ b/sysc/guile-3.0.9/sources
@@ -1,3 +1,5 @@
 https://mirrors.kernel.org/gnu/guile/guile-3.0.7.tar.xz f57d86c70620271bfceb7a9be0c81744a033f08adc7ceba832c9917ab3e691b7
+https://mirrors.kernel.org/gnu/guile/guile-3.0.9.tar.xz 1a2625ac72b2366e95792f3fe758fd2df775b4044a90a4a9787326e66c0d750d 
 https://git.savannah.gnu.org/cgit/gnulib.git/snapshot/gnulib-901694b9.tar.gz f9aad85de1f41d57c9368d304020ffbf354a5e56db1297f022c3d12181134e56
+https://git.savannah.gnu.org/cgit/gnulib.git/snapshot/gnulib-356a414e.tar.gz fc9973f1a9243fdc4b98d33d7704f3c71bfdc4c2ef96899b8f28cade7290a714
 https://github.com/schierlm/guile-psyntax-bootstrapping/archive/refs/tags/guile-3.0.7.tar.gz 14cda9c416506dfadf60c14fc623ff01ef99b87564a78d0a29c5d17143c97609
diff --git a/sysc/init b/sysc/init
index 13aeb4b0..6a6ef418 100755
--- a/sysc/init
+++ b/sysc/init
@@ -21,6 +21,8 @@ export SOURCE_DATE_EPOCH=0
 # shellcheck source=sysa/helpers.sh
 . "${SOURCES}/helpers.sh"
 
+MAKEJOBS="-j${JOBS}"
+
 echo
 echo "Installing packages into sysc"
 
@@ -75,6 +77,7 @@ SOURCES=${SOURCES}
 DESTDIR=${DESTDIR}
 DISTFILES=${DISTFILES}
 SRCDIR=${SRCDIR}
+MAKEJOBS=${MAKEJOBS}
 EOF
 
 exec ./run.sh
diff --git a/sysc/libarchive-3.5.2/libarchive-3.5.2.sh b/sysc/libarchive-3.5.2/libarchive-3.5.2.sh
index 6d9137c7..3c270b2a 100755
--- a/sysc/libarchive-3.5.2/libarchive-3.5.2.sh
+++ b/sysc/libarchive-3.5.2/libarchive-3.5.2.sh
@@ -14,7 +14,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/libtool-2.4.7/libtool-2.4.7.sh b/sysc/libtool-2.4.7/libtool-2.4.7.sh
index ac3269f2..9e34141d 100755
--- a/sysc/libtool-2.4.7/libtool-2.4.7.sh
+++ b/sysc/libtool-2.4.7/libtool-2.4.7.sh
@@ -35,7 +35,7 @@ src_configure() {
 }
 
 src_compile() {
-    make AUTOM4TE=autom4te-2.69 MAKEINFO=true
+    make "${MAKEJOBS}" AUTOM4TE=autom4te-2.69 MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/make-4.2.1/make-4.2.1.sh b/sysc/make-4.2.1/make-4.2.1.sh
index fc44db57..fa29286f 100755
--- a/sysc/make-4.2.1/make-4.2.1.sh
+++ b/sysc/make-4.2.1/make-4.2.1.sh
@@ -21,7 +21,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO="true"
+    make "${MAKEJOBS}" MAKEINFO="true"
 }
 
 src_install() {
diff --git a/sysc/mpc-1.2.1/mpc-1.2.1.sh b/sysc/mpc-1.2.1/mpc-1.2.1.sh
index 24d5fa5b..4a5b3781 100755
--- a/sysc/mpc-1.2.1/mpc-1.2.1.sh
+++ b/sysc/mpc-1.2.1/mpc-1.2.1.sh
@@ -17,7 +17,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true DESTDIR="${DESTDIR}"
+    make "${MAKEJOBS}" MAKEINFO=true DESTDIR="${DESTDIR}"
 }
 
 src_install() {
diff --git a/sysc/mpfr-4.1.0/mpfr-4.1.0.sh b/sysc/mpfr-4.1.0/mpfr-4.1.0.sh
index 8c960219..0e6b53e0 100755
--- a/sysc/mpfr-4.1.0/mpfr-4.1.0.sh
+++ b/sysc/mpfr-4.1.0/mpfr-4.1.0.sh
@@ -20,7 +20,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true DESTDIR="${DESTDIR}"
+    make "${MAKEJOBS}" MAKEINFO=true DESTDIR="${DESTDIR}"
 }
 
 src_install() {
diff --git a/sysc/musl-1.2.3/musl-1.2.3.sh b/sysc/musl-1.2.3/musl-1.2.3.sh
index 6dbe7e7e..b51c8fc7 100755
--- a/sysc/musl-1.2.3/musl-1.2.3.sh
+++ b/sysc/musl-1.2.3/musl-1.2.3.sh
@@ -13,7 +13,7 @@ src_configure() {
 }
 
 src_compile() {
-    make CROSS_COMPILE=
+    make "${MAKEJOBS}" CROSS_COMPILE=
 }
 
 src_install() {
diff --git a/sysc/patch-2.7.6/patch-2.7.6.sh b/sysc/patch-2.7.6/patch-2.7.6.sh
index 529e09d7..e66036a7 100755
--- a/sysc/patch-2.7.6/patch-2.7.6.sh
+++ b/sysc/patch-2.7.6/patch-2.7.6.sh
@@ -16,7 +16,7 @@ src_configure() {
 }
 
 src_compile() {
-    make MAKEINFO=true
+    make "${MAKEJOBS}" MAKEINFO=true
 }
 
 src_install() {
diff --git a/sysc/python-2.0.1/stage1.sh b/sysc/python-2.0.1/stage1.sh
index f22014a6..7a658a8d 100755
--- a/sysc/python-2.0.1/stage1.sh
+++ b/sysc/python-2.0.1/stage1.sh
@@ -36,11 +36,11 @@ src_configure() {
 src_compile() {
     # Build pgen
     pushd Parser
-    make pgen
+    make -j1 pgen
     popd
     # Regen graminit.c and graminit.h
     pushd Grammar
-    make graminit.c
+    make -j1 graminit.c
     popd
 
     # Regenerate some Python scripts using the other regenerated files 
@@ -56,7 +56,7 @@ src_compile() {
     mv Lib/token.py.new Lib/token.py
 
     # Now build the main program
-    make
+    make -j1
 }
 
 src_install() {
diff --git a/sysc/python-2.0.1/stage2.sh b/sysc/python-2.0.1/stage2.sh
index 1ed25854..e6dc7832 100755
--- a/sysc/python-2.0.1/stage2.sh
+++ b/sysc/python-2.0.1/stage2.sh
@@ -35,11 +35,11 @@ src_configure() {
 src_compile() {
     # Build pgen
     pushd Parser
-    make pgen
+    make -j1 pgen
     popd
     # Regen graminit.c and graminit.h
     pushd Grammar
-    make graminit.c
+    make -j1 graminit.c
     popd
 
     # Regenerate some Python scripts using the other regenerated files
@@ -55,7 +55,7 @@ src_compile() {
     mv Lib/token.py.new Lib/token.py
 
     # Now build the main program
-    make
+    make -j1
 }
 
 src_install() {
diff --git a/sysc/python-2.3.7/stage1.sh b/sysc/python-2.3.7/stage1.sh
index 7f9ad9c2..ab679de3 100755
--- a/sysc/python-2.3.7/stage1.sh
+++ b/sysc/python-2.3.7/stage1.sh
@@ -46,9 +46,9 @@ src_configure() {
 
 src_compile() {
     # Build pgen
-    make Parser/pgen
+    make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make Include/graminit.h
+    make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
@@ -59,7 +59,7 @@ src_compile() {
     python token.py
 
     # Now build the main program
-    make CFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-2.3.7/stage2.sh b/sysc/python-2.3.7/stage2.sh
index e5f6bea3..7c808f1a 100755
--- a/sysc/python-2.3.7/stage2.sh
+++ b/sysc/python-2.3.7/stage2.sh
@@ -47,9 +47,9 @@ src_configure() {
 
 src_compile() {
     # Build pgen
-    make Parser/pgen
+    make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make Include/graminit.h
+    make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
@@ -60,7 +60,7 @@ src_compile() {
     python token.py
 
     # Now build the main program
-    make CFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-2.5.6/python-2.5.6.sh b/sysc/python-2.5.6/python-2.5.6.sh
index dde40ba4..1344492e 100755
--- a/sysc/python-2.5.6/python-2.5.6.sh
+++ b/sysc/python-2.5.6/python-2.5.6.sh
@@ -58,9 +58,9 @@ src_compile() {
     # Temporarily break include cycle
     patch -Np0 -i graminit-regen.patch
     # Build pgen
-    make Parser/pgen
+    make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make Include/graminit.h
+    make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
@@ -73,7 +73,7 @@ src_compile() {
     # Undo change
     patch -Np0 -R -i graminit-regen.patch
     # Now build the main program
-    make CFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-3.1.5/stage1.sh b/sysc/python-3.1.5/stage1.sh
index 7b60226a..40fb1acc 100755
--- a/sysc/python-3.1.5/stage1.sh
+++ b/sysc/python-3.1.5/stage1.sh
@@ -52,9 +52,9 @@ src_compile() {
     # Temporarily break include cycle
     patch -Np0 -i graminit-regen.patch
     # Build pgen
-    make Parser/pgen
+    make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make Include/graminit.h
+    make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
@@ -67,7 +67,7 @@ src_compile() {
     # Undo change
     patch -Np0 -R -i graminit-regen.patch
     # Now build the main program
-    make CFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-3.1.5/stage2.sh b/sysc/python-3.1.5/stage2.sh
index 6b934fab..e8011a60 100755
--- a/sysc/python-3.1.5/stage2.sh
+++ b/sysc/python-3.1.5/stage2.sh
@@ -57,9 +57,9 @@ src_compile() {
     # Temporarily break include cycle
     patch -Np0 -i graminit-regen.patch
     # Build pgen
-    make Parser/pgen
+    make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make Include/graminit.h
+    make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
@@ -72,7 +72,7 @@ src_compile() {
     # Undo change
     patch -Np0 -R -i graminit-regen.patch
     # Now build the main program
-    make CFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-3.11.1/python-3.11.1.sh b/sysc/python-3.11.1/python-3.11.1.sh
index 10f11a02..869f3f17 100755
--- a/sysc/python-3.11.1/python-3.11.1.sh
+++ b/sysc/python-3.11.1/python-3.11.1.sh
@@ -69,7 +69,7 @@ src_compile() {
     # We have to choose the order ourselves because the Makefile is extremely lax about the order
     # First of all, do everything that doesn't use any C
     rm Modules/_blake2/blake2s_impl.c
-    make regen-opcode \
+    make "${MAKEJOBS}" regen-opcode \
         regen-opcode-targets \
         regen-typeslots \
         regen-token \
@@ -82,17 +82,17 @@ src_compile() {
         regen-global-objects
 
     # Do the freeze regen process
-    make regen-frozen
-    make regen-deepfreeze
-    make regen-global-objects
+    make "${MAKEJOBS}" regen-frozen
+    make "${MAKEJOBS}" regen-deepfreeze
+    make "${MAKEJOBS}" regen-global-objects
 
-    make CPPFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
 
     # Regen Python/stdlib_module_names.h (you must have an existing build first)
-    make regen-stdlib-module-names
+    make "${MAKEJOBS}" regen-stdlib-module-names
 
     # Now rebuild with proper stdlib_module_names.h
-    make CPPFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-3.3.7/python-3.3.7.sh b/sysc/python-3.3.7/python-3.3.7.sh
index 4821d407..c754a752 100755
--- a/sysc/python-3.3.7/python-3.3.7.sh
+++ b/sysc/python-3.3.7/python-3.3.7.sh
@@ -55,9 +55,9 @@ src_configure() {
 
 src_compile() {
     # Build pgen
-    make Parser/pgen
+    make "${MAKEJOBS}" Parser/pgen
     # Regen graminit.c and graminit.h
-    make Include/graminit.h
+    make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
@@ -69,7 +69,7 @@ src_compile() {
     python token.py
 
     # Now build the main program
-    make CFLAGS="-U__DATE__ -U__TIME__"
+    make -j1 CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-3.4.10/python-3.4.10.sh b/sysc/python-3.4.10/python-3.4.10.sh
index 813a8bd6..ee4e43d2 100755
--- a/sysc/python-3.4.10/python-3.4.10.sh
+++ b/sysc/python-3.4.10/python-3.4.10.sh
@@ -58,9 +58,9 @@ src_configure() {
 
 src_compile() {
     # Build pgen
-    make Parser/pgen
+    make -j1 Parser/pgen
     # Regen graminit.c and graminit.h
-    make Include/graminit.h
+    make "${MAKEJOBS}" Include/graminit.h
 
     # Regenerate some Python scripts using the other regenerated files
     # Must move them out to avoid using Lib/ module files which are
@@ -72,7 +72,7 @@ src_compile() {
     python token.py
 
     # Now build the main program
-    make CFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/python-3.8.16/python-3.8.16.sh b/sysc/python-3.8.16/python-3.8.16.sh
index aa2e7903..df4dd480 100755
--- a/sysc/python-3.8.16/python-3.8.16.sh
+++ b/sysc/python-3.8.16/python-3.8.16.sh
@@ -53,9 +53,9 @@ src_configure() {
 src_compile() {
     # Regenerations
     rm Modules/_blake2/blake2s_impl.c
-    make regen-all
+    make "${MAKEJOBS}" regen-all
 
-    make CPPFLAGS="-U__DATE__ -U__TIME__"
+    make "${MAKEJOBS}" CPPFLAGS="-U__DATE__ -U__TIME__"
 }
 
 src_install() {
diff --git a/sysc/run2.sh b/sysc/run2.sh
index 988b9926..1b62fe3c 100755
--- a/sysc/run2.sh
+++ b/sysc/run2.sh
@@ -86,7 +86,7 @@ build libatomic_ops-7.6.10
 
 build gc-8.0.4
 
-build guile-3.0.7
+build guile-3.0.9
 
 build which-2.21
 
diff --git a/sysc/tar-1.34/tar-1.34.sh b/sysc/tar-1.34/tar-1.34.sh
index 15d47f7e..50e25144 100755
--- a/sysc/tar-1.34/tar-1.34.sh
+++ b/sysc/tar-1.34/tar-1.34.sh
@@ -27,7 +27,7 @@ src_configure() {
 }
 
 src_compile() {
-    make PREFIX="${PREFIX}" MAKEINFO="true"
+    make "${MAKEJOBS}" PREFIX="${PREFIX}" MAKEINFO="true"
 }
 
 src_install() {