diff --git a/go.mod b/go.mod
index a0987c8..1293e24 100644
--- a/go.mod
+++ b/go.mod
@@ -11,12 +11,41 @@ require (
 
 require (
 	github.com/akutz/memconn v0.1.0 // indirect
+	github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74 // indirect
+	github.com/cceckman/tsproxy v0.0.0-20211230024330-ef115b62af76 // indirect
+	github.com/coreos/go-iptables v0.6.0 // indirect
+	github.com/go-ole/go-ole v1.2.6-0.20210915003542-8b1f7f90f6b1 // indirect
+	github.com/godbus/dbus/v5 v5.0.5 // indirect
+	github.com/google/btree v1.0.1 // indirect
+	github.com/insomniacslk/dhcp v0.0.0-20210621130208-1cac67f12b1e // indirect
+	github.com/josharian/native v0.0.0-20200817173448-b6b71def0850 // indirect
+	github.com/jsimonetti/rtnetlink v0.0.0-20210525051524-4cc836578190 // indirect
+	github.com/klauspost/compress v1.13.6 // indirect
+	github.com/mdlayher/netlink v1.4.1 // indirect
+	github.com/mdlayher/sdnotify v0.0.0-20210228150836-ea3ec207d697 // indirect
+	github.com/mdlayher/socket v0.0.0-20210307095302-262dc9984e00 // indirect
 	github.com/mitchellh/go-ps v1.0.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/tailscale/certstore v0.0.0-20210528134328-066c94b793d3 // indirect
+	github.com/tailscale/goupnp v1.0.1-0.20210804011211-c64d0f06ea05 // indirect
+	github.com/tailscale/netlink v1.1.1-0.20211101221916-cabfb018fe85 // indirect
+	github.com/tcnksm/go-httpstat v0.2.0 // indirect
+	github.com/u-root/uio v0.0.0-20210528114334-82958018845c // indirect
+	github.com/vishvananda/netlink v1.1.1-0.20211101163509-b10eb8fe5cf6 // indirect
+	github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae // indirect
 	go4.org/intern v0.0.0-20211027215823-ae77deb06f29 // indirect
 	go4.org/mem v0.0.0-20201119185036-c04c5a6ff174 // indirect
 	go4.org/unsafe/assume-no-moving-gc v0.0.0-20211027215541-db492cf91b37 // indirect
 	golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa // indirect
+	golang.org/x/net v0.0.0-20211111083644-e5c967477495 // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
 	golang.org/x/sys v0.0.0-20211110154304-99a53858aa08 // indirect
 	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/time v0.0.0-20210611083556-38a9dc6acbc6 // indirect
+	golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
+	golang.zx2c4.com/wireguard v0.0.0-20211116201604-de7c702ace45 // indirect
+	golang.zx2c4.com/wireguard/windows v0.4.10 // indirect
 	inet.af/netaddr v0.0.0-20211027220019-c74959edd3b6 // indirect
+	inet.af/netstack v0.0.0-20211101182044-1c1bcf452982 // indirect
+	nhooyr.io/websocket v1.8.7 // indirect
 )
diff --git a/go.sum b/go.sum
index 8ebcbcd..1ac556e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,19 +1,129 @@
 github.com/akutz/memconn v0.1.0 h1:NawI0TORU4hcOMsMr11g7vwlCdkYeLKXBcxWu2W/P8A=
 github.com/akutz/memconn v0.1.0/go.mod h1:Jo8rI7m0NieZyLI5e2CDlRdRqRRB4S7Xp77ukDjH+Fw=
+github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74 h1:Kk6a4nehpJ3UuJRqlA3JxYxBZEqCeOmATOvrbT4p9RA=
+github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
+github.com/cceckman/tsproxy v0.0.0-20211230024330-ef115b62af76 h1:zicfyr+QUxjZND15pXw5RyW5gHVaMszuZmbCvfZZ8/Q=
+github.com/cceckman/tsproxy v0.0.0-20211230024330-ef115b62af76/go.mod h1:twII/TRlroptDNPfJ4sW54+KTsGsHtBoln1H4rcS0xI=
+github.com/cilium/ebpf v0.5.0/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
+github.com/coreos/go-iptables v0.6.0 h1:is9qnZMPYjLd8LYqmm/qlE+wwEgJIkTYdhV3rfZo4jk=
+github.com/coreos/go-iptables v0.6.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFETJConOQ//Q=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dvyukov/go-fuzz v0.0.0-20210103155950-6a8e9d1f2415/go.mod h1:11Gm+ccJnvAhCNLlf5+cS9KjtbaD5I5zaZpFMsTHWTw=
+github.com/fanliao/go-promise v0.0.0-20141029170127-1890db352a72/go.mod h1:PjfxuH4FZdUyfMdtBio2lsRr1AKEaVPwelzuHuh8Lqc=
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+golang.zx2c4.com/wireguard/windows v0.4.10 h1:HmjzJnb+G4NCdX+sfjsQlsxGPuYaThxRbZUZFLyR0/s=
+golang.zx2c4.com/wireguard/windows v0.4.10/go.mod h1:v7w/8FC48tTBm1IzScDVPEEb0/GjLta+T0ybpP9UWRg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 inet.af/netaddr v0.0.0-20211027220019-c74959edd3b6 h1:acCzuUSQ79tGsM/O50VRFySfMm19IoMKL+sZztZkCxw=
 inet.af/netaddr v0.0.0-20211027220019-c74959edd3b6/go.mod h1:y3MGhcFMlh0KZPMuXXow8mpjxxAk3yoDNsp4cQz54i8=
+inet.af/netstack v0.0.0-20211101182044-1c1bcf452982 h1:hYciifHEv98/p8ln52ybKhgQpGouZWALFxxFE65RVdU=
+inet.af/netstack v0.0.0-20211101182044-1c1bcf452982/go.mod h1:fG3G1dekmK8oDX3iVzt8c0zICLMLSN8SjdxbXVt0WjU=
+nhooyr.io/websocket v1.8.7 h1:usjR2uOr/zjjkVMy0lW+PPohFok7PCow5sDjLgX4P4g=
+nhooyr.io/websocket v1.8.7/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0=
 tailscale.com v1.18.2 h1:97bYZWQ91knzR/JvP24Xz/uaq81zz/Xn47PqDdnjquc=
 tailscale.com v1.18.2/go.mod h1:XzG4o2vtYFkVvmJWPaTGSaOzqlKSRx2WU+aJbrxaVE0=
diff --git a/main.go b/main.go
index 51c9141..a33ab31 100644
--- a/main.go
+++ b/main.go
@@ -5,16 +5,19 @@ import (
 	"flag"
 	"io/fs"
 	"log"
+	"net"
 	"net/http"
 	"os"
 
 	"github.com/cceckman/reading-list/static"
 	"tailscale.com/client/tailscale"
+	"tailscale.com/tsnet"
 )
 
 var (
-	listen     = flag.String("listen", "[::]:8080", "Port or address:port to listen on")
+	addr       = flag.String("addr", ":443", "Port or address:port to listen on")
 	allowLocal = flag.Bool("allowLocal", false, "Allow serving from the local static/ directory rather than embedded content. Development only.")
+	useTsNet   = flag.Bool("tsnet", true, "Connect directly to Tailscale via tsnet")
 )
 
 func main() {
@@ -32,13 +35,32 @@ func main() {
 	// Root handler: serve from the filesystem.
 	fileHandler := http.FileServer(http.FS(files))
 
-	server := http.Server{
-		Addr:    *listen,
-		Handler: fileHandler,
-		TLSConfig: &tls.Config{
-			GetCertificate: tailscale.GetCertificate,
-		},
+	var ln net.Listener
+	var err error
+	if *useTsNet {
+		s := new(tsnet.Server)
+		ln, err = s.Listen("tcp", *addr)
+	} else {
+		ln, err = net.Listen("tcp", *addr)
+	}
+	if err != nil {
+		log.Fatal(err)
 	}
-	log.Print("Starting to run and listen at ", *listen)
-	log.Fatal(server.ListenAndServeTLS("", ""))
+
+	tls := tls.NewListener(ln, &tls.Config{
+		GetCertificate: tailscale.GetCertificate,
+	})
+
+	log.Fatal(http.Serve(tls, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if *useTsNet {
+			// Check Tailscale authentication
+			who, err := tailscale.WhoIs(r.Context(), r.RemoteAddr)
+			if err != nil {
+				http.Error(w, err.Error(), 500)
+				return
+			}
+			log.Printf("Tailscale-authenticated request from %s at %s", who.UserProfile.LoginName, who.Node.Name)
+		}
+		fileHandler.ServeHTTP(w, r)
+	})))
 }