diff --git a/.gitmodules b/.gitmodules
index 815eaea..e7bca1c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -49,21 +49,12 @@
 [submodule "cl-bordeaux-threads"]
 	path = cl-bordeaux-threads
 	url = ssh://aur@aur.archlinux.org/cl-bordeaux-threads.git
-[submodule "cl-flexi-streams"]
-	path = cl-flexi-streams
-	url = ssh://aur@aur.archlinux.org/cl-flexi-streams.git
 [submodule "cl-ironclad"]
 	path = cl-ironclad
 	url = ssh://aur@aur.archlinux.org/cl-ironclad.git
 [submodule "cl-rt"]
 	path = cl-rt
 	url = ssh://aur@aur.archlinux.org/cl-rt.git
-[submodule "cl-trivial-gray-streams"]
-	path = cl-trivial-gray-streams
-	url = ssh://aur@aur.archlinux.org/cl-trivial-gray-streams.git
-[submodule "cl-unicode"]
-	path = cl-unicode
-	url = ssh://aur@aur.archlinux.org/cl-unicode.git
 [submodule "cloudflared"]
 	path = cloudflared
 	url = ssh://aur@aur.archlinux.org/cloudflared.git
diff --git a/cl-flexi-streams b/cl-flexi-streams
deleted file mode 160000
index f995024..0000000
--- a/cl-flexi-streams
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f995024003529ace1854326332c744ff5931c6f9
diff --git a/cl-ppcre/PKGBUILD b/cl-ppcre/PKGBUILD
deleted file mode 100644
index 2a413a7..0000000
--- a/cl-ppcre/PKGBUILD
+++ /dev/null
@@ -1,65 +0,0 @@
-# Maintainer: George Rawlinson <grawlinson@archlinux.org>
-
-pkgbase=cl-ppcre
-pkgname=('cl-ppcre' 'cl-ppcre-unicode')
-pkgver=2.1.1.r3.gb4056c5
-pkgrel=1
-pkgdesc='Perl-compatible portable regexp library for Common Lisp'
-arch=('any')
-url='https://edicl.github.io/cl-ppcre/'
-license=('BSD')
-depends=('common-lisp' 'cl-asdf')
-makedepends=('git' 'sbcl')
-_commit='b4056c5aecd9304e80abced0ef9c89cd66ecfb5e'
-source=("$pkgbase::git+https://github.com/edicl/cl-ppcre#commit=$_commit")
-b2sums=('SKIP')
-
-pkgver() {
-  cd "$pkgbase"
-
-  git describe --tags | sed -e 's/^v//' -e 's/-/.r/' -e 's/-/./g'
-}
-
-package_cl-ppcre() {
-  cd "$pkgbase"
-
-  # create directories
-  install -vd \
-    "$pkgdir/usr/share/common-lisp/source/$pkgname" \
-    "$pkgdir/usr/share/common-lisp/systems"
-
-  # library
-  cp -vr test ./*.lisp "$pkgname.asd" "$pkgdir/usr/share/common-lisp/source/$pkgname"
-
-  pushd "$pkgdir/usr/share/common-lisp/systems"
-  ln -s "../source/$pkgname/$pkgname.asd" .
-  popd
-
-  # documentation
-  install -vDm644 -t "$pkgdir/usr/share/doc/$pkgname" README.md docs/index.html
-
-  # license
-  install -vDm644 -t "$pkgdir/usr/share/licenses/$pkgname" LICENSE
-}
-
-package_cl-ppcre-unicode() {
-  depends+=('cl-unicode' 'cl-ppcre')
-  pkgdesc+=' (Unicode)'
-
-  cd "$pkgbase"
-
-  # create directories
-  install -vd \
-    "$pkgdir/usr/share/common-lisp/source/$pkgname" \
-    "$pkgdir/usr/share/common-lisp/systems"
-
-  # library
-  install -vDm644 -t "$pkgdir/usr/share/common-lisp/source/$pkgname" "$pkgname"/*.lisp "$pkgname.asd"
-
-  pushd "$pkgdir/usr/share/common-lisp/systems"
-  ln -s "../source/$pkgname/$pkgname.asd" .
-  popd
-
-  # license
-  install -vDm644 -t "$pkgdir/usr/share/licenses/$pkgname" LICENSE
-}
diff --git a/cl-trivial-gray-streams b/cl-trivial-gray-streams
deleted file mode 160000
index b41865c..0000000
--- a/cl-trivial-gray-streams
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit b41865c184d0a032c6fccf29ee66f07137886d54
diff --git a/cl-unicode b/cl-unicode
deleted file mode 160000
index 3329a56..0000000
--- a/cl-unicode
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 3329a56dff42ec13c59ebb4c4f46d88ae0bd2966