diff --git a/examples/gosigar/go.mod b/examples/gosigar/go.mod
new file mode 100644
index 0000000..df67f18
--- /dev/null
+++ b/examples/gosigar/go.mod
@@ -0,0 +1,25 @@
+module github.com/KimMachineGun/automemlimit/examples
+
+go 1.21
+
+toolchain go1.21.0
+
+require (
+	github.com/KimMachineGun/automemlimit v0.0.0
+	github.com/cloudfoundry/gosigar v1.3.30
+)
+
+require (
+	github.com/cilium/ebpf v0.9.1 // indirect
+	github.com/containerd/cgroups/v3 v3.0.1 // indirect
+	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
+	github.com/docker/go-units v0.4.0 // indirect
+	github.com/godbus/dbus/v5 v5.0.4 // indirect
+	github.com/opencontainers/runtime-spec v1.0.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/sirupsen/logrus v1.8.1 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	google.golang.org/protobuf v1.27.1 // indirect
+)
+
+replace github.com/KimMachineGun/automemlimit => ../../
diff --git a/examples/gosigar/go.sum b/examples/gosigar/go.sum
new file mode 100644
index 0000000..3786b6c
--- /dev/null
+++ b/examples/gosigar/go.sum
@@ -0,0 +1,64 @@
+github.com/cilium/ebpf v0.9.1 h1:64sn2K3UKw8NbP/blsixRpF3nXuyhz/VjRlRzvlBRu4=
+github.com/cilium/ebpf v0.9.1/go.mod h1:+OhNOIXx/Fnu1IE8bJz2dzOA+VSfyTfdNUVdlQnxUFY=
+github.com/cloudfoundry/gosigar v1.3.30 h1:ZQPPt8RY72T8V+OZqPAi1qzkqH6UPhrAY8lfmDklNuI=
+github.com/cloudfoundry/gosigar v1.3.30/go.mod h1:v1aji1eOWmI6/v9T9Gd9ef1a2FEi9m9/25UnfHO0org=
+github.com/containerd/cgroups/v3 v3.0.1 h1:4hfGvu8rfGIwVIDd+nLzn/B9ZXx4BcCjzt5ToenJRaE=
+github.com/containerd/cgroups/v3 v3.0.1/go.mod h1:/vtwk1VXrtoa5AaZLkypuOJgA/6DyPMZHJPGQNtlHnw=
+github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=
+github.com/coreos/go-systemd/v22 v22.3.2/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw=
+github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
+github.com/frankban/quicktest v1.14.0 h1:+cqqvzZV87b4adx/5ayVOaYZ2CrvM4ejQvUdBzPPUss=
+github.com/frankban/quicktest v1.14.0/go.mod h1:NeW+ay9A/U67EYXNFA1nPE8e/tnQv/09mUdL/ijj8og=
+github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
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+github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
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+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
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+github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
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+github.com/onsi/ginkgo/v2 v2.12.1 h1:uHNEO1RP2SpuZApSkel9nEh1/Mu+hmQe7Q+Pepg5OYA=
+github.com/onsi/ginkgo/v2 v2.12.1/go.mod h1:TE309ZR8s5FsKKpuB1YAQYBzCaAfUgatB/xlT/ETL/o=
+github.com/onsi/gomega v1.27.10 h1:naR28SdDFlqrG6kScpT8VWpu1xWY5nJRCF3XaYyBjhI=
+github.com/onsi/gomega v1.27.10/go.mod h1:RsS8tutOdbdgzbPtzzATp12yT7kM5I5aElG3evPbQ0M=
+github.com/opencontainers/runtime-spec v1.0.2 h1:UfAcuLBJB9Coz72x1hgl8O5RVzTdNiaglX6v2DM6FI0=
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+google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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diff --git a/examples/gosigar/main.go b/examples/gosigar/main.go
new file mode 100644
index 0000000..087d797
--- /dev/null
+++ b/examples/gosigar/main.go
@@ -0,0 +1,26 @@
+package main
+
+import (
+	"github.com/KimMachineGun/automemlimit/memlimit"
+	sigar "github.com/cloudfoundry/gosigar"
+)
+
+func init() {
+	memlimit.SetGoMemLimitWithOpts(
+		memlimit.WithEnv(),
+		memlimit.WithProvider(
+			memlimit.ApplyFallback(
+				memlimit.FromCgroup,
+				FromGoSigar,
+			),
+		),
+	)
+}
+
+func main() {}
+
+func FromGoSigar() (uint64, error) {
+	var mem sigar.Mem
+	err := mem.Get()
+	return mem.Total, err
+}