diff --git a/.github/workflows/platform.yml b/.github/workflows/platform.yml
index 4463bec..b4489ba 100644
--- a/.github/workflows/platform.yml
+++ b/.github/workflows/platform.yml
@@ -37,7 +37,7 @@ jobs:
     needs: build-base-with-docker
     strategy:
       matrix:
-        allocator: [ff, fg, gd, hd, hm, iso, je, lf, lp, lt, mesh, mng, mi, mi2, nomesh, pa, rp, scudo, sm, sn, sg, tbb, tc, yal, tcg]
+        allocator: [ff, fg, gd, hd, hm, iso, je, lf, lp, lt, mesh, mng, mi, mi2, nomesh, pa, rp, scudo, s, sm, sn, sg, tbb, tc, yal, tcg]
         testsuite: [allt]
         # Used to provide a platform-specific predicate
         predicate: [true, false]
@@ -97,4 +97,4 @@ jobs:
             allocator=${{ matrix.allocator }}
             benchs=${{ (contains('lt,lf,gd', matrix.allocator) && 'cfrac espresso barnes larson-sized mstress rptest gs lua') || ('fg' == matrix.allocator && 'cfrac espresso barnes gs lua') || 'allt' }}
             repeats=1
-          cache-from: type=gha,scope=buildkit_${{ inputs.platform }}
\ No newline at end of file
+          cache-from: type=gha,scope=buildkit_${{ inputs.platform }}
diff --git a/bench.sh b/bench.sh
index c03fe2d..ea2c07e 100755
--- a/bench.sh
+++ b/bench.sh
@@ -6,7 +6,7 @@
 # Allocators and tests
 # --------------------------------------------------------------------
 
-readonly alloc_all="sys dh ff fg gd hd hm hml iso je lf lp lt mi mi-sec mi2 mi2-sec mng mesh nomesh pa rp sc scudo sg sm sn sn-sec tbb tc tcg mi-dbg mi2-dbg xmi xsmi xmi-dbg yal"
+readonly alloc_all="sys dh ff fg gd hd hm hml iso je lf lp lt mi mi-sec mi2 mi2-sec mng mesh nomesh pa rp sc scudo sg sm sn sn-sec s tbb tc tcg mi-dbg mi2-dbg xmi xsmi xmi-dbg yal"
 readonly alloc_secure="dh ff gd hm hml iso mi-sec mi2-sec mng pa scudo sg sn-sec sg"
 alloc_run=""           # allocators to run (expanded by command line options)
 alloc_installed="sys"  # later expanded to include all installed allocators
@@ -120,6 +120,7 @@ alloc_lib_add "scudo"  "$localdevdir/scudo/compiler-rt/lib/scudo/standalone/libs
 alloc_lib_add "sg"     "$localdevdir/sg/libSlimGuard.so"
 alloc_lib_add "sm"     "$localdevdir/sm/release/lib/libsupermalloc$extso"
 alloc_lib_add "sn"     "$localdevdir/sn/release/libsnmallocshim$extso"
+alloc_lib_add "s"      "$localdevdir/s/target/release/libsmalloc_ffi$extso"
 alloc_lib_add "sn-sec" "$localdevdir/sn/release/libsnmallocshim-checks$extso"
 alloc_lib_add "tbb"    "$lib_tbb"
 alloc_lib_add "tc"     "$localdevdir/tc/.libs/libtcmalloc_minimal$extso"
@@ -413,6 +414,7 @@ while : ; do
             echo "  sm                           use supermalloc"
             echo "  sn                           use snmalloc"
             echo "  sn-sec                       use secure version of snmalloc"
+            echo "  s                            use smalloc"
             echo "  sys                          use system malloc ($libc)"
             echo "  tbb                          use Intel TBB malloc"
             echo "  tc                           use tcmalloc (from gperftools)"
diff --git a/build-bench-env.sh b/build-bench-env.sh
index 3223dc7..bfb66e3 100755
--- a/build-bench-env.sh
+++ b/build-bench-env.sh
@@ -60,6 +60,7 @@ readonly version_scudo=main
 readonly version_sg=master   # ~unmaintained since 2021
 readonly version_sm=master   # ~unmaintained since 2017
 readonly version_sn=0.7.3
+readonly version_s=v7.6.0
 readonly version_tbb=v2021.9.0
 readonly version_tc=gperftools-2.18
 readonly version_tcg=98fd24303c7b5ef5e30da625f11fb623a5e038b6 # 2025-07-18
@@ -100,6 +101,7 @@ setup_scudo=0
 setup_sg=0
 setup_sm=0
 setup_sn=0
+setup_s=0
 setup_tbb=0
 setup_tc=0
 setup_tcg=0
@@ -143,6 +145,7 @@ while : ; do
         setup_mi2=$flag_arg
         setup_pa=$flag_arg
         setup_sn=$flag_arg
+        setup_s=$flag_arg
         setup_sg=$flag_arg
         setup_tbb=$flag_arg
         setup_tc=$flag_arg
@@ -232,6 +235,8 @@ while : ; do
         setup_sm=$flag_arg;;
     sn)
         setup_sn=$flag_arg;;
+    s)
+        setup_s=$flag_arg;;
     tbb)
         setup_tbb=$flag_arg;;
     tc)
@@ -276,6 +281,7 @@ while : ; do
         echo "  sg                           setup slimguard ($version_sg)"
         echo "  sm                           setup supermalloc ($version_sm)"
         echo "  sn                           setup snmalloc ($version_sn)"
+        echo "  s                            setup smalloc ($version_s)"
         echo "  tbb                          setup Intel TBB malloc ($version_tbb)"
         echo "  tc                           setup tcmalloc ($version_tc)"
         echo "  tcg                          setup Google's tcmalloc ($version_tcg)"
@@ -665,6 +671,12 @@ if test "$setup_sn" = "1"; then
   popd
 fi
 
+if test "$setup_s" = "1"; then
+  checkout s $version_s https://github.com/zooko/smalloc
+  cargo build --release --package smalloc-ffi
+  popd
+fi
+
 if test "$setup_sm" = "1"; then
   checkout sm $version_sm https://github.com/kuszmaul/SuperMalloc
   rm -rf ./doc ./paper "./short-talk"