diff --git a/skarnet-builder/build-latest b/skarnet-builder/build-latest
index 1d50ba7..c8b2e27 100755
--- a/skarnet-builder/build-latest
+++ b/skarnet-builder/build-latest
@@ -2,7 +2,7 @@
 set -e
 set -x
 
-MUSL_CROSS_MAKE_RELEASE=1
+MUSL_CROSS_MAKE_RELEASE=2
 MUSL_CROSS_MAKE_SRC="https://github.com/just-containers/musl-cross-make/releases/download/v${MUSL_CROSS_MAKE_RELEASE}"
 
 BUILDDIR=$HOME/build
@@ -45,18 +45,19 @@ s6-rc
 declare -A targets
 targets[arm-linux-musleabihf]=armhf
 targets[x86_64-linux-musl]=amd64
+targets[i486-linux-musl]=x86
 
 # software versions
 declare -A versions
 versions[make]=4.1
-versions[skalibs]=2.3.10.0
-versions[execline]=2.1.5.0
-versions[s6]=2.3.0.0
-versions[s6-portable-utils]=2.0.6.0
-versions[s6-linux-utils]=2.1.0.0
-versions[s6-dns]=2.0.1.0
-versions[s6-networking]=2.1.1.0
-versions[s6-rc]=0.0.3.0
+versions[skalibs]=2.4.0.2
+versions[execline]=2.2.0.0
+versions[s6]=2.4.0.0
+versions[s6-portable-utils]=2.1.0.0
+versions[s6-linux-utils]=2.2.0.0
+versions[s6-dns]=2.1.0.0
+versions[s6-networking]=2.2.1.0
+versions[s6-rc]=0.1.0.0
 
 declare -A manifests
 manifests[skarnet_all_packages]="manifest.txt"
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/socket.lib b/skarnet-builder/sysdeps/i486-linux-musl/socket.lib
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/socket.lib
@@ -0,0 +1 @@
+
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/spawn.lib b/skarnet-builder/sysdeps/i486-linux-musl/spawn.lib
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/spawn.lib
@@ -0,0 +1 @@
+
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/sysclock.lib b/skarnet-builder/sysdeps/i486-linux-musl/sysclock.lib
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/sysclock.lib
@@ -0,0 +1 @@
+
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/sysdeps b/skarnet-builder/sysdeps/i486-linux-musl/sysdeps
new file mode 100644
index 0000000..628548d
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/sysdeps
@@ -0,0 +1,43 @@
+target: i486-linux-musl
+clockrt: yes
+clockmon: yes
+posixspawn: yes
+timer: yes
+endianness: little
+sizeofushort: 2
+sizeofuint: 4
+sizeofulong: 4
+sizeofgid: 4
+sizeoftime: 4
+accept4: yes
+ancilautoclose: no
+cmsgcloexec: yes
+devurandom: yes
+eproto: yes
+eventfd: yes
+flock: yes
+getpeereid: no
+sopeercred: yes
+getpeerucred: no
+ipv6: yes
+malloc0: yes
+msgdontwait: yes
+nbwaitall: yes
+openat: yes
+linkat: yes
+pipe2: yes
+ppoll: yes
+revoke: no
+sendfile: yes
+setgroups: yes
+settimeofday: yes
+signalfd: yes
+splice: yes
+strcasestr: yes
+strnlen: yes
+uint64t: yes
+futimens: yes
+futimes: yes
+arc4random: no
+getrandom: no
+itimer: yes
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/sysdeps.h b/skarnet-builder/sysdeps/i486-linux-musl/sysdeps.h
new file mode 100644
index 0000000..ff1e466
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/sysdeps.h
@@ -0,0 +1,54 @@
+/* ISC license. */
+
+#ifndef SYSDEPS_H
+#define SYSDEPS_H
+
+#define SKALIBS_TARGET "i486-linux-musl"
+#define SKALIBS_HASCLOCKRT
+#define SKALIBS_HASCLOCKMON
+#define SKALIBS_HASPOSIXSPAWN
+#define SKALIBS_HASTIMER
+#define SKALIBS_ENDIANNESS "little"
+#define SKALIBS_SIZEOFUSHORT 2
+#define SKALIBS_USHORT_BITS 16
+#define SKALIBS_SIZEOFUINT 4
+#define SKALIBS_UINT_BITS 32
+#define SKALIBS_SIZEOFULONG 4
+#define SKALIBS_ULONG_BITS 32
+#define SKALIBS_SIZEOFGID 4
+#define SKALIBS_GID_BITS 32
+#define SKALIBS_SIZEOFTIME 4
+#define SKALIBS_TIME_BITS 32
+#define SKALIBS_HASACCEPT4
+#undef SKALIBS_HASANCILAUTOCLOSE
+#define SKALIBS_HASCMSGCLOEXEC
+#define SKALIBS_HASDEVURANDOM
+#define SKALIBS_HASEPROTO
+#define SKALIBS_HASEVENTFD
+#define SKALIBS_HASFLOCK
+#undef SKALIBS_HASGETPEEREID
+#define SKALIBS_HASSOPEERCRED
+#undef SKALIBS_HASGETPEERUCRED
+#define SKALIBS_HASIPV6
+#define SKALIBS_HASMALLOC0
+#define SKALIBS_HASMSGDONTWAIT
+#define SKALIBS_HASNBWAITALL
+#define SKALIBS_HASOPENAT
+#define SKALIBS_HASLINKAT
+#define SKALIBS_HASPIPE2
+#define SKALIBS_HASPPOLL
+#undef SKALIBS_HASREVOKE
+#define SKALIBS_HASSENDFILE
+#define SKALIBS_HASSETGROUPS
+#define SKALIBS_HASSETTIMEOFDAY
+#define SKALIBS_HASSIGNALFD
+#define SKALIBS_HASSPLICE
+#define SKALIBS_HASSTRCASESTR
+#define SKALIBS_HASSTRNLEN
+#define SKALIBS_HASUINT64T
+#define SKALIBS_HASFUTIMENS
+#define SKALIBS_HASFUTIMES
+#undef SKALIBS_HASARC4RANDOM
+#undef SKALIBS_HASGETRANDOM
+#define SKALIBS_HASITIMER
+#endif
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/tainnow.lib b/skarnet-builder/sysdeps/i486-linux-musl/tainnow.lib
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/tainnow.lib
@@ -0,0 +1 @@
+
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/target b/skarnet-builder/sysdeps/i486-linux-musl/target
new file mode 100644
index 0000000..0164025
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/target
@@ -0,0 +1 @@
+i486-linux-musl
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/timer.lib b/skarnet-builder/sysdeps/i486-linux-musl/timer.lib
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/timer.lib
@@ -0,0 +1 @@
+
diff --git a/skarnet-builder/sysdeps/i486-linux-musl/util.lib b/skarnet-builder/sysdeps/i486-linux-musl/util.lib
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/skarnet-builder/sysdeps/i486-linux-musl/util.lib
@@ -0,0 +1 @@
+