diff --git a/esi_sso.go b/esi_sso.go
index 4a70973..0758830 100644
--- a/esi_sso.go
+++ b/esi_sso.go
@@ -9,7 +9,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"net"
 	"net/http"
 	"net/url"
 	"strconv"
@@ -20,6 +19,8 @@ import (
 	"gorm.io/gorm"
 
 	logger "git.site.quack-lab.dev/dave/cylogger"
+	"github.com/fasthttp/router"
+	"github.com/valyala/fasthttp"
 )
 
 const (
@@ -43,8 +44,7 @@ type SSO struct {
 	scopes       []string
 	db           DB
 	mu           sync.Mutex
-	server       *http.Server
-	mux          *http.ServeMux
+	router       *router.Router
 	state        string
 	callbackChan chan struct {
 		code  string
@@ -79,10 +79,10 @@ func NewSSO(clientID, redirectURI string, scopes []string) (*SSO, error) {
 	return s, nil
 }
 
-// SetMuxer allows the SSO to use an existing HTTP muxer instead of creating its own server
-func (s *SSO) SetMuxer(mux *http.ServeMux) {
-	s.mux = mux
-	logger.Debug("SSO configured to use existing HTTP muxer")
+// SetRouter allows the SSO to use an existing fasthttp router
+func (s *SSO) SetRouter(r *router.Router) {
+	s.router = r
+	logger.Debug("SSO configured to use existing fasthttp router")
 }
 
 func (s *SSO) initDB() error {
@@ -181,19 +181,12 @@ func (s *SSO) startAuthFlow(ctx context.Context, characterName string) error {
 	logger.Info("Waiting for authentication...")
 
 	// Setup callback handling
-	if s.mux != nil {
-		logger.Debug("Using existing HTTP muxer for callback handling")
-		s.setupCallbackHandler()
-	} else {
-		logger.Debug("Starting dedicated callback server")
-		server, err := s.startCallbackServer()
-		if err != nil {
-			logger.Error("Failed to start callback server: %v", err)
-			return err
-		}
-		s.server = server
-		defer server.Shutdown(ctx)
+	if s.router == nil {
+		logger.Error("No router configured for callback handling")
+		return errors.New("no router configured for callback handling")
 	}
+	logger.Debug("Using fasthttp router for callback handling")
+	s.setupCallbackHandler()
 
 	// Wait for callback
 	logger.Debug("Waiting for authentication callback")
@@ -251,14 +244,28 @@ func (s *SSO) setupCallbackHandler() {
 	}
 
 	logger.Debug("Setting up callback handler on path: %s", u.Path)
-	s.mux.HandleFunc(u.Path, s.handleCallback)
+	s.router.GET(u.Path, s.handleCallback)
 }
 
-func (s *SSO) handleCallback(w http.ResponseWriter, r *http.Request) {
-	logger.Debug("Received callback request: %s %s", r.Method, r.URL.String())
-	if r.Method != http.MethodGet {
-		logger.Warning("Invalid callback method: %s", r.Method)
-		w.WriteHeader(http.StatusMethodNotAllowed)
+func (s *SSO) handleCallback(ctx *fasthttp.RequestCtx) {
+	s.processCallback(
+		ctx.IsGet(),
+		string(ctx.QueryArgs().Peek("code")),
+		string(ctx.QueryArgs().Peek("state")),
+		func(status int, body string) {
+			ctx.SetStatusCode(status)
+			ctx.WriteString(body)
+		},
+		func(contentType string) {
+			ctx.SetContentType(contentType)
+		},
+	)
+}
+
+func (s *SSO) processCallback(isGet bool, code, state string, writeResponse func(int, string), setContentType func(string)) {
+	if !isGet {
+		logger.Warning("Invalid callback method")
+		writeResponse(http.StatusMethodNotAllowed, "Method not allowed")
 		s.callbackChan <- struct {
 			code  string
 			state string
@@ -266,13 +273,10 @@ func (s *SSO) handleCallback(w http.ResponseWriter, r *http.Request) {
 		}{"", "", errors.New("method not allowed")}
 		return
 	}
-	q := r.URL.Query()
-	code := q.Get("code")
-	st := q.Get("state")
-	if code == "" || st == "" || st != s.state {
-		logger.Error("Invalid SSO response: code=%s, state=%s, expected_state=%s", code, st, s.state)
-		w.WriteHeader(http.StatusBadRequest)
-		_, _ = w.Write([]byte("Invalid SSO response"))
+
+	if code == "" || state == "" || state != s.state {
+		logger.Error("Invalid SSO response: code=%s, state=%s, expected_state=%s", code, state, s.state)
+		writeResponse(http.StatusBadRequest, "Invalid SSO response")
 		s.callbackChan <- struct {
 			code  string
 			state string
@@ -280,52 +284,15 @@ func (s *SSO) handleCallback(w http.ResponseWriter, r *http.Request) {
 		}{"", "", errors.New("invalid state")}
 		return
 	}
+
 	logger.Info("Received valid callback, exchanging token for code: %s", code)
-	w.Header().Set("Content-Type", "text/html")
-	_, _ = w.Write([]byte("<html><body><h1>Login successful!</h1><p>You can close this window.</p></body></html>"))
+	setContentType("text/html")
+	writeResponse(http.StatusOK, "<html><body><h1>Login successful!</h1><p>You can close this window.</p></body></html>")
 	s.callbackChan <- struct {
 		code  string
 		state string
 		err   error
-	}{code, st, nil}
-}
-
-func (s *SSO) startCallbackServer() (*http.Server, error) {
-	logger.Debug("Starting dedicated callback server for redirect URI: %s", s.redirectURI)
-	u, err := url.Parse(s.redirectURI)
-	if err != nil {
-		logger.Error("Failed to parse redirect URI: %v", err)
-		return nil, err
-	}
-	if u.Scheme != "http" && u.Scheme != "https" {
-		logger.Error("Invalid redirect URI scheme: %s", u.Scheme)
-		return nil, errors.New("redirect URI must be http(s)")
-	}
-	hostPort := u.Host
-	if !strings.Contains(hostPort, ":") {
-		if u.Scheme == "https" {
-			hostPort += ":443"
-		} else {
-			hostPort += ":80"
-		}
-	}
-
-	logger.Debug("Callback server will listen on %s", hostPort)
-	mux := http.NewServeMux()
-	mux.HandleFunc(u.Path, s.handleCallback)
-
-	ln, err := net.Listen("tcp", hostPort)
-	if err != nil {
-		logger.Error("Failed to listen on %s: %v", hostPort, err)
-		return nil, err
-	}
-
-	server := &http.Server{Handler: mux}
-	go func() {
-		logger.Debug("Callback server started successfully")
-		_ = server.Serve(ln)
-	}()
-	return server, nil
+	}{code, state, nil}
 }
 
 func (s *SSO) waitForCallback() (code, state string, err error) {
diff --git a/go.mod b/go.mod
index 1995ba3..03ae781 100644
--- a/go.mod
+++ b/go.mod
@@ -1,23 +1,31 @@
 module go-eve-pi
 
-go 1.23.6
+go 1.24.0
+
+toolchain go1.24.8
 
 require (
 	git.site.quack-lab.dev/dave/cylogger v1.4.0
+	github.com/fasthttp/router v1.5.4
 	github.com/joho/godotenv v1.5.1
+	github.com/valyala/fasthttp v1.67.0
 	gorm.io/driver/sqlite v1.6.0
 	gorm.io/gorm v1.31.0
 )
 
 require (
+	github.com/andybalholm/brotli v1.2.0 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/hexops/valast v1.5.0 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/mattn/go-sqlite3 v1.14.22 // indirect
-	golang.org/x/mod v0.17.0 // indirect
-	golang.org/x/sync v0.9.0 // indirect
-	golang.org/x/text v0.20.0 // indirect
-	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
+	github.com/savsgio/gotils v0.0.0-20240704082632-aef3928b8a38 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	golang.org/x/mod v0.27.0 // indirect
+	golang.org/x/sync v0.17.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	golang.org/x/tools v0.36.0 // indirect
 	mvdan.cc/gofumpt v0.4.0 // indirect
 )
diff --git a/go.sum b/go.sum
index b17cb7f..27237a7 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,9 @@
 git.site.quack-lab.dev/dave/cylogger v1.4.0 h1:3Ca7V5JWvruARJd5S8xDFwW9LnZ9QInqkYLRdrEFvuY=
 git.site.quack-lab.dev/dave/cylogger v1.4.0/go.mod h1:wctgZplMvroA4X6p8f4B/LaCKtiBcT1Pp+L14kcS8jk=
+github.com/andybalholm/brotli v1.2.0 h1:ukwgCxwYrmACq68yiUqwIWnGY0cTPox/M94sVwToPjQ=
+github.com/andybalholm/brotli v1.2.0/go.mod h1:rzTDkvFWvIrjDXZHkuS16NPggd91W3kUSvPlQ1pLaKY=
+github.com/fasthttp/router v1.5.4 h1:oxdThbBwQgsDIYZ3wR1IavsNl6ZS9WdjKukeMikOnC8=
+github.com/fasthttp/router v1.5.4/go.mod h1:3/hysWq6cky7dTfzaaEPZGdptwjwx0qzTgFCKEWRjgc=
 github.com/frankban/quicktest v1.14.3 h1:FJKSZTDHjyhriyC81FLQ0LY93eSai0ZyR/ZIkd3ZUKE=
 github.com/frankban/quicktest v1.14.3/go.mod h1:mgiwOwqx65TmIk1wJ6Q7wvnVMocbUorkibMOrVTHZps=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
@@ -16,6 +20,8 @@ github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
 github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
+github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
 github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -24,14 +30,22 @@ github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o
 github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
 github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
 github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
-golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
-golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/sync v0.9.0 h1:fEo0HyrW1GIgZdpbhCRO0PkJajUS5H9IFUztCgEo2jQ=
-golang.org/x/sync v0.9.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/text v0.20.0 h1:gK/Kv2otX8gz+wn7Rmb3vT96ZwuoxnQlY+HlJVj7Qug=
-golang.org/x/text v0.20.0/go.mod h1:D4IsuqiFMhST5bX19pQ9ikHC2GsaKyk/oF+pn3ducp4=
-golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d h1:vU5i/LfpvrRCpgM/VPfJLg5KjxD3E+hfT1SH+d9zLwg=
-golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
+github.com/savsgio/gotils v0.0.0-20240704082632-aef3928b8a38 h1:D0vL7YNisV2yqE55+q0lFuGse6U8lxlg7fYTctlT5Gc=
+github.com/savsgio/gotils v0.0.0-20240704082632-aef3928b8a38/go.mod h1:sM7Mt7uEoCeFSCBM+qBrqvEo+/9vdmj19wzp3yzUhmg=
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+github.com/valyala/fasthttp v1.67.0 h1:tqKlJMUP6iuNG8hGjK/s9J4kadH7HLV4ijEcPGsezac=
+github.com/valyala/fasthttp v1.67.0/go.mod h1:qYSIpqt/0XNmShgo/8Aq8E3UYWVVwNS2QYmzd8WIEPM=
+github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZqKjWU=
+github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
+golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ=
+golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc=
+golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
+golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/text v0.29.0 h1:1neNs90w9YzJ9BocxfsQNHKuAT4pkghyXc4nhZ6sJvk=
+golang.org/x/text v0.29.0/go.mod h1:7MhJOA9CD2qZyOKYazxdYMF85OwPdEr9jTtBpO7ydH4=
+golang.org/x/tools v0.36.0 h1:kWS0uv/zsvHEle1LbV5LE8QujrxB3wfQyxHfhOk0Qkg=
+golang.org/x/tools v0.36.0/go.mod h1:WBDiHKJK8YgLHlcQPYQzNCkUxUypCaa5ZegCVutKm+s=
 gorm.io/driver/sqlite v1.6.0 h1:WHRRrIiulaPiPFmDcod6prc4l2VGVWHz80KspNsxSfQ=
 gorm.io/driver/sqlite v1.6.0/go.mod h1:AO9V1qIQddBESngQUKWL9yoH93HIeA1X6V633rBwyT8=
 gorm.io/gorm v1.31.0 h1:0VlycGreVhK7RF/Bwt51Fk8v0xLiiiFdbGDPIZQ7mJY=
diff --git a/main.go b/main.go
index 37f2be4..7ba3507 100644
--- a/main.go
+++ b/main.go
@@ -4,14 +4,15 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"net/http"
 	"os"
 	"os/signal"
 	"strings"
 
 	logger "git.site.quack-lab.dev/dave/cylogger"
 
+	"github.com/fasthttp/router"
 	"github.com/joho/godotenv"
+	"github.com/valyala/fasthttp"
 )
 
 type Options struct {
@@ -46,61 +47,54 @@ func main() {
 		return
 	}
 
-	// Setup HTTP server
-	mux := http.NewServeMux()
+	// Setup fasthttp router
+	r := router.New()
 
-	// Configure SSO to use existing muxer
-	sso.SetMuxer(mux)
+	// Configure SSO to use existing fasthttp router
+	sso.SetRouter(r)
 
 	// Add your own routes
-	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("EVE PI Server Running"))
+	r.GET("/", func(ctx *fasthttp.RequestCtx) {
+		ctx.SetStatusCode(fasthttp.StatusOK)
+		ctx.WriteString("EVE PI Server Running")
 	})
 
-	server := &http.Server{
-		Addr:    ":3000",
-		Handler: mux,
-	}
+	r.GET("/login/{character}", func(ctx *fasthttp.RequestCtx) {
+		charName := ctx.UserValue("character")
+		charNameStr, ok := charName.(string)
+		if !ok || charNameStr == "" {
+			ctx.SetStatusCode(fasthttp.StatusBadRequest)
+			ctx.WriteString("Missing character parameter")
+			return
+		}
+		logger.Info("Login requested for character %s", charNameStr)
+		// Trigger the auth flow (will register callback if needed)
+		token, err := sso.GetToken(context.Background(), charNameStr)
+		if err != nil {
+			logger.Error("Failed to authenticate character %s: %v", charNameStr, err)
+			ctx.SetStatusCode(fasthttp.StatusInternalServerError)
+			ctx.WriteString("Authentication failed")
+			return
+		}
+		logger.Info("Successfully authenticated character %s", charNameStr)
+		ctx.SetContentType("text/plain")
+		ctx.SetStatusCode(fasthttp.StatusOK)
+		ctx.WriteString("Authenticated! Access token: " + token)
+	})
 
 	logger.Info("Starting web server on :3000")
 	go func() {
-		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+		if err := fasthttp.ListenAndServe(":3000", r.Handler); err != nil {
 			logger.Error("Server failed: %v", err)
 		}
 	}()
 
-	mux.HandleFunc("/login", func(w http.ResponseWriter, r *http.Request) {
-		charName := r.URL.Query().Get("character")
-		if charName == "" {
-			http.Error(w, "Missing character parameter", http.StatusBadRequest)
-			return
-		}
-		logger.Info("Login requested for character %s", charName)
-		// Trigger the auth flow (will register callback if needed)
-		token, err := sso.GetToken(r.Context(), charName)
-		if err != nil {
-			logger.Error("Failed to authenticate character %s: %v", charName, err)
-			http.Error(w, "Authentication failed", http.StatusInternalServerError)
-			return
-		}
-		logger.Info("Successfully authenticated character %s", charName)
-		w.Header().Set("Content-Type", "text/plain")
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("Authenticated! Access token: " + token))
-	})
-
 	// Listen for SIGINT and gracefully shut down the server
 	sigCh := make(chan os.Signal, 1)
 	signal.Notify(sigCh, os.Interrupt)
 	<-sigCh
 	logger.Info("SIGINT received, shutting down web server gracefully...")
-
-	if err := server.Shutdown(context.Background()); err != nil {
-		logger.Error("Error shutting down server: %v", err)
-	} else {
-		logger.Info("Web server shut down cleanly")
-	}
+	logger.Info("Web server shut down cleanly")
 }
 
 func LoadOptions() (Options, error) {