diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 60ec5c1..4d4e1bd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,18 +39,10 @@ jobs:
           - debian:stable
           - debian:bookworm
           - debian:bullseye
-          - debian:buster
           # Fails on configure on GCC and clang (process restrictions?)
           # - fedora:rawhide
           - fedora:latest
-          - fedora:42
-          - fedora:41
-          - fedora:40
-          - fedora:39
-          - fedora:38
-          - fedora:37
           - ubuntu:latest
-          - ubuntu:oracular
           - ubuntu:noble
           - ubuntu:jammy
           - ubuntu:focal
@@ -86,14 +78,6 @@ jobs:
             pkg_config_path: /usr/lib/i386-linux-gnu/pkgconfig
             variant: i386
 
-          - container: "debian:buster"
-            arch: i386
-            family: x86
-            compiler: gcc -m32
-            cross_compile: i686-linux-gnu
-            pkg_config_path: /usr/lib/i386-linux-gnu/pkgconfig
-            variant: i386
-
           # Debian cross compilation builds
           - container: "debian:testing"
             arch: armhf
@@ -183,7 +167,7 @@ jobs:
         echo "PKG_CONFIG_PATH: $PKG_CONFIG_PATH"
 
     - name: Git checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install additional packages
       run: |
diff --git a/cdba.c b/cdba.c
index 68cbdc3..5331354 100644
--- a/cdba.c
+++ b/cdba.c
@@ -193,7 +193,8 @@ static void cdba_queue_data(int type, size_t len, const void *buf)
 	item->type = type;
 	item->len = len;
 	item->fd = -1;
-	memcpy(item->payload, buf, len);
+	if (len)
+		memcpy(item->payload, buf, len);
 
 	list_append(&tx_queue, &item->node);
 }
diff --git a/ci/alpine.sh b/ci/alpine.sh
index c4b5083..f3424ca 100755
--- a/ci/alpine.sh
+++ b/ci/alpine.sh
@@ -17,6 +17,7 @@ case $CC in
 esac
 
 apk add \
+	build-base \
 	linux-headers \
 	libftdi1-dev \
 	yaml-dev \
diff --git a/ci/debian.cross-compile.sh b/ci/debian.cross-compile.sh
index 04be957..153c526 100755
--- a/ci/debian.cross-compile.sh
+++ b/ci/debian.cross-compile.sh
@@ -19,7 +19,8 @@ dpkg --add-architecture $ARCH
 apt update
 
 apt install -y --no-install-recommends \
-	libftdi-dev:${ARCH} \
+	libc6-dev:${ARCH} \
+	libftdi1-dev:${ARCH} \
 	libudev-dev:${ARCH} \
 	libyaml-dev:${ARCH} \
 	libgpiod-dev:${ARCH} \
diff --git a/ci/debian.i386.sh b/ci/debian.i386.sh
index 100cacc..219e201 100755
--- a/ci/debian.i386.sh
+++ b/ci/debian.i386.sh
@@ -20,7 +20,7 @@ apt install -y --no-install-recommends \
 	linux-libc-dev:i386
 
 apt install -y --no-install-recommends \
-	libftdi-dev:i386 \
+	libftdi1-dev:i386 \
 	libudev-dev:i386 \
 	libyaml-dev:i386 \
 	libgpiod-dev:i386 \
diff --git a/ci/debian.sh b/ci/debian.sh
index 2fdc362..91b5c56 100755
--- a/ci/debian.sh
+++ b/ci/debian.sh
@@ -29,7 +29,7 @@ esac
 
 apt install -y --no-install-recommends \
 	pkg-config \
-	libftdi-dev \
+	libftdi1-dev \
 	libudev-dev \
 	libyaml-dev \
 	libgpiod-dev \
diff --git a/drivers/local-gpio-v1.c b/drivers/local-gpio-v1.c
index 793dd1d..657a152 100644
--- a/drivers/local-gpio-v1.c
+++ b/drivers/local-gpio-v1.c
@@ -25,7 +25,7 @@ int local_gpio_init(struct local_gpio *local_gpio)
 	int i;
 
 	for (i = 0; i < GPIO_COUNT; ++i) {
-		struct gpiod_line_request_config cfg;
+		struct gpiod_line_request_config cfg = { 0 };
 
 		if (!local_gpio->options->gpios[i].present)
 			continue;
diff --git a/meson.build b/meson.build
index cd9c7ad..06e532f 100644
--- a/meson.build
+++ b/meson.build
@@ -59,10 +59,12 @@ cdbalib_deps = [dependency('libudev', required: server_opt),
 	       gpiod_dep,
 	       ftdi_dep]
 
-# E.g. Debian reuires -lutil for forkpty
-if not compiler.has_function('forkpty')
-  util_dep = compiler.find_library('util')
-  cdbalib_deps += util_dep
+# E.g. Debian requires -lutil for forkpty
+if not compiler.has_function('forkpty', prefix: '#include <pty.h>')
+  util_dep = compiler.find_library('util', required: false)
+  if util_dep.found()
+    cdbalib_deps += util_dep
+  endif
 endif
 
 drivers_srcs = ['drivers/alpaca.c',