diff --git a/build/docker/Dockerfile.demo-yggdrasil b/build/docker/Dockerfile.demo-yggdrasil
new file mode 100644
index 00000000..76bf3582
--- /dev/null
+++ b/build/docker/Dockerfile.demo-yggdrasil
@@ -0,0 +1,25 @@
+FROM docker.io/golang:1.19-alpine AS base
+
+RUN apk --update --no-cache add bash build-base
+
+WORKDIR /build
+
+COPY . /build
+
+RUN mkdir -p bin
+RUN go build -trimpath -o bin/ ./cmd/dendrite-demo-yggdrasil
+RUN go build -trimpath -o bin/ ./cmd/create-account
+RUN go build -trimpath -o bin/ ./cmd/generate-keys
+
+FROM alpine:latest
+LABEL org.opencontainers.image.title="Dendrite (Yggdrasil demo)"
+LABEL org.opencontainers.image.description="Next-generation Matrix homeserver written in Go"
+LABEL org.opencontainers.image.source="https://github.com/matrix-org/dendrite"
+LABEL org.opencontainers.image.licenses="Apache-2.0"
+
+COPY --from=base /build/bin/* /usr/bin/
+
+VOLUME /etc/dendrite
+WORKDIR /etc/dendrite
+
+ENTRYPOINT ["/usr/bin/dendrite-demo-yggdrasil"]
diff --git a/cmd/dendrite-demo-yggdrasil/yggconn/node.go b/cmd/dendrite-demo-yggdrasil/yggconn/node.go
index 83b4cdf9..6df5fa87 100644
--- a/cmd/dendrite-demo-yggdrasil/yggconn/node.go
+++ b/cmd/dendrite-demo-yggdrasil/yggconn/node.go
@@ -20,6 +20,7 @@ import (
 	"encoding/hex"
 	"fmt"
 	"net"
+	"regexp"
 	"strings"
 
 	"github.com/matrix-org/gomatrixserverlib"
@@ -27,9 +28,9 @@ import (
 	"github.com/sirupsen/logrus"
 
 	ironwoodtypes "github.com/Arceliar/ironwood/types"
-	yggdrasilconfig "github.com/yggdrasil-network/yggdrasil-go/src/config"
+	"github.com/yggdrasil-network/yggdrasil-go/src/core"
 	yggdrasilcore "github.com/yggdrasil-network/yggdrasil-go/src/core"
-	yggdrasildefaults "github.com/yggdrasil-network/yggdrasil-go/src/defaults"
+	"github.com/yggdrasil-network/yggdrasil-go/src/multicast"
 	yggdrasilmulticast "github.com/yggdrasil-network/yggdrasil-go/src/multicast"
 
 	gologme "github.com/gologme/log"
@@ -37,7 +38,6 @@ import (
 
 type Node struct {
 	core      *yggdrasilcore.Core
-	config    *yggdrasilconfig.NodeConfig
 	multicast *yggdrasilmulticast.Multicast
 	log       *gologme.Logger
 	utpSocket *utp.Socket
@@ -57,43 +57,52 @@ func (n *Node) DialerContext(ctx context.Context, _, address string) (net.Conn,
 
 func Setup(sk ed25519.PrivateKey, instanceName, storageDirectory, peerURI, listenURI string) (*Node, error) {
 	n := &Node{
-		core:      &yggdrasilcore.Core{},
-		config:    yggdrasildefaults.GenerateConfig(),
-		multicast: &yggdrasilmulticast.Multicast{},
-		log:       gologme.New(logrus.StandardLogger().Writer(), "", 0),
-		incoming:  make(chan net.Conn),
+		log:      gologme.New(logrus.StandardLogger().Writer(), "", 0),
+		incoming: make(chan net.Conn),
 	}
 
-	options := []yggdrasilcore.SetupOption{
-		yggdrasilcore.AdminListenAddress("none"),
-	}
-	if listenURI != "" {
-		options = append(options, yggdrasilcore.ListenAddress(listenURI))
-	}
-	if peerURI != "" {
-		for _, uri := range strings.Split(peerURI, ",") {
-			options = append(options, yggdrasilcore.Peer{
-				URI: uri,
-			})
-		}
-	}
-
-	var err error
-	if n.core, err = yggdrasilcore.New(sk, options...); err != nil {
-		panic(err)
-	}
 	n.log.EnableLevel("error")
 	n.log.EnableLevel("warn")
 	n.log.EnableLevel("info")
-	n.core.SetLogger(n.log)
-	if n.utpSocket, err = utp.NewSocketFromPacketConnNoClose(n.core); err != nil {
-		panic(err)
+
+	{
+		var err error
+		options := []yggdrasilcore.SetupOption{}
+		if listenURI != "" {
+			options = append(options, yggdrasilcore.ListenAddress(listenURI))
+		}
+		if peerURI != "" {
+			for _, uri := range strings.Split(peerURI, ",") {
+				options = append(options, yggdrasilcore.Peer{
+					URI: uri,
+				})
+			}
+		}
+		if n.core, err = core.New(sk[:], n.log, options...); err != nil {
+			panic(err)
+		}
+		n.core.SetLogger(n.log)
+
+		if n.utpSocket, err = utp.NewSocketFromPacketConnNoClose(n.core); err != nil {
+			panic(err)
+		}
 	}
-	if err = n.multicast.Init(n.core, n.config, n.log, nil); err != nil {
-		panic(err)
-	}
-	if err = n.multicast.Start(); err != nil {
-		panic(err)
+
+	// Setup the multicast module.
+	{
+		var err error
+		options := []multicast.SetupOption{
+			multicast.MulticastInterface{
+				Regex:    regexp.MustCompile(".*"),
+				Beacon:   true,
+				Listen:   true,
+				Port:     0,
+				Priority: 0,
+			},
+		}
+		if n.multicast, err = multicast.New(n.core, n.log, options...); err != nil {
+			panic(err)
+		}
 	}
 
 	n.log.Printf("Public key: %x", n.core.PublicKey())
@@ -114,14 +123,7 @@ func (n *Node) DerivedServerName() string {
 }
 
 func (n *Node) PrivateKey() ed25519.PrivateKey {
-	sk := make(ed25519.PrivateKey, ed25519.PrivateKeySize)
-	sb, err := hex.DecodeString(n.config.PrivateKey)
-	if err == nil {
-		copy(sk, sb[:])
-	} else {
-		panic(err)
-	}
-	return sk
+	return n.core.PrivateKey()
 }
 
 func (n *Node) PublicKey() ed25519.PublicKey {
diff --git a/go.mod b/go.mod
index be5099fc..7c290d78 100644
--- a/go.mod
+++ b/go.mod
@@ -1,7 +1,7 @@
 module github.com/matrix-org/dendrite
 
 require (
-	github.com/Arceliar/ironwood v0.0.0-20220903132624-ee60c16bcfcf
+	github.com/Arceliar/ironwood v0.0.0-20221025225125-45b4281814c2
 	github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979
 	github.com/DATA-DOG/go-sqlmock v1.5.0
 	github.com/MFAshby/stdemuxerhook v1.0.0
@@ -41,7 +41,7 @@ require (
 	github.com/tidwall/sjson v1.2.5
 	github.com/uber/jaeger-client-go v2.30.0+incompatible
 	github.com/uber/jaeger-lib v2.4.1+incompatible
-	github.com/yggdrasil-network/yggdrasil-go v0.4.5-0.20220901155642-4f2abece817c
+	github.com/yggdrasil-network/yggdrasil-go v0.4.6
 	go.uber.org/atomic v1.10.0
 	golang.org/x/crypto v0.0.0-20221012134737-56aed061732a
 	golang.org/x/image v0.0.0-20220902085622-e7cb96979f69
diff --git a/go.sum b/go.sum
index c7903b0c..a0db4823 100644
--- a/go.sum
+++ b/go.sum
@@ -38,8 +38,8 @@ dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBr
 dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
 dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
-github.com/Arceliar/ironwood v0.0.0-20220903132624-ee60c16bcfcf h1:kjPkmDHUTWUma/4tqDl208bOk3jsUEqOJA6TsMZo5Jk=
-github.com/Arceliar/ironwood v0.0.0-20220903132624-ee60c16bcfcf/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
+github.com/Arceliar/ironwood v0.0.0-20221025225125-45b4281814c2 h1:Usab30pNT2i/vZvpXcN9uOr5IO1RZPcUqoGH0DIAPnU=
+github.com/Arceliar/ironwood v0.0.0-20221025225125-45b4281814c2/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
 github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979 h1:WndgpSW13S32VLQ3ugUxx2EnnWmgba1kCqPkd4Gk1yQ=
 github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979/go.mod h1:6Lkn+/zJilRMsKmbmG1RPoamiArC6HS73xbwRyp3UyI=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
@@ -592,8 +592,8 @@ github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df/go.mod h1:JP3t17
 github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
 github.com/willf/bitset v1.1.9/go.mod h1:RjeCKbqT1RxIR/KWY6phxZiaY1IyutSBfGjNPySAYV4=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
-github.com/yggdrasil-network/yggdrasil-go v0.4.5-0.20220901155642-4f2abece817c h1:/cTmA6pV2Z20BT/FGSmnb5BmJ8eRbDP0HbCB5IO1aKw=
-github.com/yggdrasil-network/yggdrasil-go v0.4.5-0.20220901155642-4f2abece817c/go.mod h1:cIwhYwX9yT9Bcei59O0oOBSaj+kQP+9aVQUMWHh5R00=
+github.com/yggdrasil-network/yggdrasil-go v0.4.6 h1:GALUDV9QPz/5FVkbazpkTc9EABHufA556JwUJZr41j4=
+github.com/yggdrasil-network/yggdrasil-go v0.4.6/go.mod h1:PBMoAOvQjA9geNEeGyMXA9QgCS6Bu+9V+1VkWM84wpw=
 github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=