19 files changed, 945 insertions, 86 deletions

diff --git a/cmd/build/main.go b/cmd/build/main.go
index 9b6a79b..069f9bd 100644
--- a/cmd/build/main.go
+++ b/cmd/build/main.go
@@ -7,6 +7,8 @@ import (
 	"log/slog"
 	"os"
 
+	"website/internal/builder"
+
 	"github.com/BurntSushi/toml"
 	"github.com/ardanlabs/conf/v3"
 	"github.com/pkg/errors"
@@ -16,9 +18,11 @@ func main() {
 	if os.Getenv("DEBUG") != "" {
 		slog.SetLogLoggerLevel(slog.LevelDebug)
 	}
+	log.SetFlags(log.LstdFlags | log.Lmsgprefix)
+	log.SetPrefix("build: ")
 	slog.Debug("starting build process")
 
-	ioConfig := IOConfig{}
+	ioConfig := builder.IOConfig{}
 	if help, err := conf.Parse("", &ioConfig); err != nil {
 		if errors.Is(err, conf.ErrHelpWanted) {
 			fmt.Println(help)
@@ -34,7 +38,7 @@ func main() {
 		}
 	}
 
-	if err := buildSite(ioConfig); err != nil {
+	if err := builder.BuildSite(ioConfig); err != nil {
 		switch cause := errors.Cause(err).(type) {
 		case *fs.PathError:
 			slog.Info("pathError")
diff --git a/cmd/cspgenerator/cspgenerator.go b/cmd/cspgenerator/cspgenerator.go
new file mode 100644
index 0000000..f79a591
--- /dev/null
+++ b/cmd/cspgenerator/cspgenerator.go
@@ -0,0 +1,13 @@
+package main
+
+import (
+	"log"
+	"website/internal/config"
+)
+
+func main() {
+	err := config.GenerateCSP()
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/cmd/dev/main.go b/cmd/dev/main.go
new file mode 100644
index 0000000..1a6ccea
--- /dev/null
+++ b/cmd/dev/main.go
@@ -0,0 +1,313 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/fs"
+	"log"
+	"log/slog"
+	"net/http"
+	"net/http/httputil"
+
+	"os"
+	"os/exec"
+	"os/signal"
+	"path"
+	"path/filepath"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+
+	"website/internal/config"
+
+	"github.com/antage/eventsource"
+	"github.com/ardanlabs/conf/v3"
+	"github.com/gohugoio/hugo/watcher"
+
+	"github.com/pkg/errors"
+)
+
+type DevConfig struct {
+	Source    string     `conf:"default:.,short:s"`
+	TempDir   string     `conf:"required,short:t"`
+	BaseURL   config.URL `conf:"default:http://localhost:3000"`
+	ServerURL config.URL `conf:"default:http://localhost:3001"`
+}
+
+func RunCommandPiped(ctx context.Context, command string, args ...string) (cmd *exec.Cmd, err error) {
+	slog.Debug(fmt.Sprintf("running command %s %s", command, strings.Join(args, " ")))
+	cmd = exec.CommandContext(ctx, command, args...)
+	cmd.Env = append(os.Environ(), "DEBUG=")
+	cmd.Cancel = func() error {
+		slog.Debug("signalling child")
+		err := cmd.Process.Signal(os.Interrupt)
+		if err != nil {
+			slog.Error(fmt.Sprintf("signal error: %v", err))
+		}
+		return err
+	}
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return
+	}
+	stderr, err := cmd.StderrPipe()
+	if err != nil {
+		return
+	}
+
+	go io.Copy(os.Stdout, stdout)
+	go io.Copy(os.Stderr, stderr)
+
+	return
+}
+
+type FileWatcher struct {
+	*watcher.Batcher
+}
+
+func NewFileWatcher(pollTime time.Duration) (*FileWatcher, error) {
+	batcher, err := watcher.New(pollTime/5, pollTime, true)
+	if err != nil {
+		return nil, err
+	}
+	return &FileWatcher{batcher}, nil
+}
+
+func (watcher FileWatcher) WatchAllFiles(from string) error {
+	slog.Debug(fmt.Sprintf("watching files under %s", from))
+	err := filepath.Walk(from, func(path string, info fs.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		// slog.Debug(fmt.Sprintf("adding file %s to watcher", path))
+		if err = watcher.Add(path); err != nil {
+			return err
+		}
+		return nil
+	})
+	return err
+}
+
+func build(ctx context.Context, config DevConfig) error {
+	buildExe := filepath.Join(config.TempDir, "build")
+	cmd, err := RunCommandPiped(ctx, buildExe,
+		"--dest", path.Join(config.TempDir, "output"),
+		"--dev",
+	)
+	// cmd, err := RunCommandPiped(ctx, "./devfakebuild")
+
+	if err != nil {
+		return errors.WithMessage(err, "error running build command")
+	}
+
+	err = cmd.Run()
+	slog.Debug(fmt.Sprintf("build command exited with code %d", cmd.ProcessState.ExitCode()))
+	if err != nil {
+		return errors.WithMessage(err, "error running build command")
+	}
+	return nil
+}
+
+func server(ctx context.Context, devConfig DevConfig) error {
+	serverExe := path.Join(devConfig.TempDir, "server")
+
+	cmd, err := RunCommandPiped(ctx,
+		serverExe,
+		"--port", devConfig.ServerURL.Port(),
+		"--root", path.Join(devConfig.TempDir, "output"),
+		"--in-dev-server",
+	)
+	if err != nil {
+		return errors.WithMessage(err, "error running server command")
+	}
+	// cmd.Env = append(cmd.Env, "DEBUG=1")
+
+	cmdErr := make(chan error, 1)
+	done := make(chan struct{})
+	err = cmd.Start()
+	if err != nil {
+		return errors.WithMessage(err, fmt.Sprintf("error starting server binary"))
+	}
+
+	go func() {
+		err := cmd.Wait()
+		if err == nil && cmd.ProcessState.Exited() {
+			err = errors.Errorf("server exited unexpectedly")
+		}
+
+		cmdErr <- err
+		close(done)
+	}()
+
+	for {
+		select {
+		case <-ctx.Done():
+			slog.Debug("server context done")
+			cmd.Process.Signal(os.Interrupt)
+			<-done
+		case err := <-cmdErr:
+			return err
+		}
+	}
+}
+
+func main() {
+	if os.Getenv("DEBUG") != "" {
+		slog.SetLogLoggerLevel(slog.LevelDebug)
+	}
+	var wg sync.WaitGroup
+
+	devConfig := DevConfig{}
+	help, err := conf.Parse("", &devConfig)
+	if err != nil {
+		if errors.Is(err, conf.ErrHelpWanted) {
+			fmt.Println(help)
+			os.Exit(1)
+		}
+		log.Panicf("parsing dev configuration: %v", err)
+	}
+
+	slog.Debug(fmt.Sprintf("using folder %s for build output", devConfig.TempDir))
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	slog.Debug("setting interrupt handler")
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		sig := <-c
+		slog.Info(fmt.Sprintf("shutting down on signal %d", sig))
+		cancel()
+		sig = <-c
+		slog.Info(fmt.Sprintf("got second signal, dying %d", sig))
+		os.Exit(1)
+	}()
+
+	serverChan := make(chan bool, 1)
+	eventsource := eventsource.New(nil, nil)
+	defer eventsource.Close()
+	srv := http.Server{
+		Addr: devConfig.BaseURL.Host,
+	}
+	devCtx, devCancel := context.WithTimeout(ctx, 1*time.Second)
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		defer devCancel()
+		slog.Debug("waiting for first server launch")
+		<-serverChan
+		slog.Debug("got first server launch event")
+
+		http.Handle("/", &httputil.ReverseProxy{
+			Rewrite: func(req *httputil.ProxyRequest) {
+				req.SetURL(devConfig.ServerURL.URL)
+				req.Out.Host = req.In.Host
+			},
+		})
+		http.Handle("/_/reload", eventsource)
+		done := make(chan bool)
+		go func() {
+			err := srv.ListenAndServe()
+			if err != nil && err != http.ErrServerClosed {
+				slog.Error(err.Error())
+				cancel()
+			}
+			done <- true
+		}()
+		go func() {
+			for {
+				select {
+				case ready := <-serverChan:
+					if ready {
+						slog.Debug("sending reload message")
+						eventsource.SendEventMessage("reload", "", "")
+					} else {
+						slog.Debug("server not ready")
+					}
+				}
+			}
+		}()
+		slog.Info(fmt.Sprintf("dev server listening on %s", devConfig.BaseURL.Host))
+		<-done
+		slog.Debug("dev server closed")
+	}()
+
+	fw, err := NewFileWatcher(500 * time.Millisecond)
+	if err != nil {
+		log.Fatalf("error creating file watcher: %v", err)
+	}
+	err = fw.WatchAllFiles("content")
+	if err != nil {
+		log.Fatalf("could not watch files in content directory: %v", err)
+	}
+	err = fw.WatchAllFiles("templates")
+	if err != nil {
+		log.Fatalf("could not watch files in templates directory: %v", err)
+	}
+
+	var exitCode int
+	serverErr := make(chan error, 1)
+loop:
+	for {
+		serverCtx, stopServer := context.WithCancel(ctx)
+		slog.Debug("starting build")
+
+		err := build(ctx, devConfig)
+		if err != nil {
+			slog.Error(fmt.Sprintf("build error: %v", err))
+			// don't set up the server until there's a FS change event
+		} else {
+			slog.Debug("setting up server")
+			wg.Add(1)
+			go func() {
+				defer wg.Done()
+				serverChan <- true
+				serverErr <- server(serverCtx, devConfig)
+			}()
+		}
+
+		select {
+		case <-ctx.Done():
+			slog.Debug("main context cancelled")
+			slog.Debug("calling server shutdown")
+			srv.Shutdown(devCtx)
+			exitCode = 1
+			break loop
+		case event := <-fw.Events:
+			slog.Debug(fmt.Sprintf("event received: %v", event))
+			stopServer()
+			serverChan <- false
+			slog.Debug("waiting for server shutdown")
+			<-serverErr
+			slog.Debug("server shutdown completed")
+			continue
+		case err = <-serverErr:
+			if err != nil && err != context.Canceled {
+				var exerr *exec.ExitError
+				slog.Error(fmt.Sprintf("server reported error: %v", err))
+				if errors.As(err, &exerr) {
+					slog.Debug("server exit error")
+					exitCode = exerr.ExitCode()
+				} else {
+					slog.Debug("server other error")
+					exitCode = 1
+				}
+				break
+			}
+			slog.Debug("no error or server context cancelled")
+			continue
+		}
+
+		slog.Debug("waiting on server")
+		exitCode = 0
+		break
+	}
+
+	slog.Debug("waiting for wg before shutting down")
+	wg.Wait()
+	os.Exit(exitCode)
+}
diff --git a/cmd/server/main.go b/cmd/server/main.go
index b6817d8..bae215a 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -5,7 +5,10 @@ import (
 	"log"
 	"log/slog"
 	"os"
-	cfg "website/internal/config"
+	"os/signal"
+	"sync"
+
+	"website/internal/server"
 
 	"github.com/ardanlabs/conf/v3"
 	"github.com/pkg/errors"
@@ -16,20 +19,14 @@ var (
 	ShortSHA  string
 )
 
-type Config struct {
-	Production             bool    `conf:"default:false"`
-	ListenAddress          string  `conf:"default:localhost"`
-	Port                   uint16  `conf:"default:3000,short:p"`
-	BaseURL                cfg.URL `conf:"default:http://localhost:3000,short:b"`
-	RedirectOtherHostnames bool    `conf:"default:false"`
-}
-
 func main() {
 	if os.Getenv("DEBUG") != "" {
 		slog.SetLogLoggerLevel(slog.LevelDebug)
 	}
+	log.SetFlags(log.LstdFlags | log.Lmsgprefix)
+	log.SetPrefix("server: ")
 
-	runtimeConfig := Config{}
+	runtimeConfig := server.Config{}
 	help, err := conf.Parse("", &runtimeConfig)
 	if err != nil {
 		if errors.Is(err, conf.ErrHelpWanted) {
@@ -39,5 +36,36 @@ func main() {
 		log.Panicf("parsing runtime configuration: %v", err)
 	}
 
-	startServer(&runtimeConfig)
+	c := make(chan os.Signal, 2)
+	signal.Notify(c, os.Interrupt)
+	sv, err := server.New(&runtimeConfig)
+	if err != nil {
+		log.Fatalf("error setting up server: %v", err)
+	}
+	wg := &sync.WaitGroup{}
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		sig := <-c
+		log.Printf("signal captured: %v", sig)
+		<-sv.Stop()
+		slog.Debug("server stopped")
+	}()
+
+	sErr := make(chan error)
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		sErr <- sv.Start()
+	}()
+	if !runtimeConfig.InDevServer {
+		log.Printf("server listening on %s", sv.Addr)
+	}
+
+	err = <-sErr
+	if err != nil {
+		// Error starting or closing listener:
+		log.Fatalf("error: %v", err)
+	}
+	wg.Wait()
 }
diff --git a/config.toml b/config.toml
index 603c8d3..55b2508 100644
--- a/config.toml
+++ b/config.toml
@@ -1,6 +1,5 @@
 default_language = "en-GB"
 base_url = "https://alanpearce.eu"
-redirect_other_hostnames = true
 
 title = "Alan Pearce"
 email = "alan@alanpearce.eu"
@@ -13,10 +12,34 @@ original_domain = "alanpearce.eu"
 name = "tags"
 feed = true
 
+[content-security-policy]
+default-src = [
+  "'none'",
+]
+image-src = [
+  "'self'",
+  "http://gc.zgo.at",
+]
+script-src = [
+  "'self'",
+  "http://gc.zgo.at",
+]
+style-src = [
+  "'unsafe-inline'",
+]
+frame-ancestors = [
+  "https://kagi.com",
+]
+connect-src = [
+  "https://alanpearce-eu.goatcounter.com/count",
+]
+require-trusted-types-for = [
+  "'script'",
+]
+
 [extra.headers]
 cache-control = "max-age=14400"
 x-content-type-options = "nosniff"
-content-security-policy = "default-src 'none'; img-src 'self' https://gc.zgo.at; script-src 'self' https://gc.zgo.at; style-src 'unsafe-inline'; frame-ancestors https://kagi.com; connect-src https://alanpearce-eu.goatcounter.com/count; require-trusted-types-for 'script'"
 
 [[menus.main]]
     name = "Home"
diff --git a/go.mod b/go.mod
index d124c22..4e8682e 100644
--- a/go.mod
+++ b/go.mod
@@ -7,11 +7,15 @@ require (
 	github.com/PuerkitoBio/goquery v1.9.1
 	github.com/a-h/htmlformat v0.0.0-20231108124658-5bd994fe268e
 	github.com/adrg/frontmatter v0.2.0
+	github.com/antage/eventsource v0.0.0-20220422142129-c4aae935d5bd
 	github.com/antchfx/xmlquery v1.4.0
 	github.com/antchfx/xpath v1.3.0
 	github.com/ardanlabs/conf/v3 v3.1.7
+	github.com/crewjam/csp v0.0.2
 	github.com/deckarep/golang-set/v2 v2.6.0
+	github.com/fatih/structtag v1.2.0
 	github.com/getsentry/sentry-go v0.27.0
+	github.com/gohugoio/hugo v0.125.4
 	github.com/otiai10/copy v1.14.0
 	github.com/pkg/errors v0.9.1
 	github.com/shengyanli1982/law v0.1.13
@@ -23,12 +27,23 @@ replace github.com/a-h/htmlformat => github.com/alanpearce/htmlformat v0.0.0-202
 
 require (
 	github.com/andybalholm/cascadia v1.3.2 // indirect
+	github.com/bep/godartsass v1.2.0 // indirect
+	github.com/bep/godartsass/v2 v2.0.0 // indirect
+	github.com/bep/golibsass v1.1.1 // indirect
+	github.com/cli/safeexec v1.0.1 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/gobwas/glob v0.2.3 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/kr/pretty v0.3.1 // indirect
-	github.com/rogpeppe/go-internal v1.10.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/hashstructure v1.1.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.1 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
+	github.com/tdewolff/parse/v2 v2.7.13 // indirect
 	golang.org/x/sync v0.7.0 // indirect
 	golang.org/x/sys v0.19.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 68fbd04..1368a63 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,6 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/locker v0.0.0-20171006230638-a6e239ea1c69 h1:+tu3HOoMXB7RXEINRVIpxJCT+KdYiI7LAEAUrOw3dIU=
+github.com/BurntSushi/locker v0.0.0-20171006230638-a6e239ea1c69/go.mod h1:L1AbZdiDllfyYH5l5OkAaZtk7VkWe89bPJFmnDBNHxg=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
 github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
@@ -5,64 +8,236 @@ github.com/PuerkitoBio/goquery v1.9.1 h1:mTL6XjbJTZdpfL+Gwl5U2h1l9yEkJjhmlTeV9VP
 github.com/PuerkitoBio/goquery v1.9.1/go.mod h1:cW1n6TmIMDoORQU5IU/P1T3tGFunOeXEpGP2WHRwkbY=
 github.com/adrg/frontmatter v0.2.0 h1:/DgnNe82o03riBd1S+ZDjd43wAmC6W35q67NHeLkPd4=
 github.com/adrg/frontmatter v0.2.0/go.mod h1:93rQCj3z3ZlwyxxpQioRKC1wDLto4aXHrbqIsnH9wmE=
-github.com/alanpearce/htmlformat v0.0.0-20240418170242-387207ca8d01 h1:mD01zfZPrqHj7OlyU1O2gJIBRN/kgIyMueres3CHPp8=
-github.com/alanpearce/htmlformat v0.0.0-20240418170242-387207ca8d01/go.mod h1:FMIm5afKmEfarNbIXOaPHFY8X7fo+fRQB6I9MPG2nB0=
 github.com/alanpearce/htmlformat v0.0.0-20240425000139-1244374b2562 h1:7LpBXZnmFk8+RwdFnAYB7rKZhBQrQ4poPLEhpwwbmSc=
 github.com/alanpearce/htmlformat v0.0.0-20240425000139-1244374b2562/go.mod h1:FMIm5afKmEfarNbIXOaPHFY8X7fo+fRQB6I9MPG2nB0=
+github.com/alecthomas/chroma/v2 v2.13.0 h1:VP72+99Fb2zEcYM0MeaWJmV+xQvz5v5cxRHd+ooU1lI=
+github.com/alecthomas/chroma/v2 v2.13.0/go.mod h1:BUGjjsD+ndS6eX37YgTchSEG+Jg9Jv1GiZs9sqPqztk=
 github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss=
 github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
+github.com/antage/eventsource v0.0.0-20220422142129-c4aae935d5bd h1:FD3sn3oFA0wySr3iH+47H3lIts9qT9nZfoF935hxaH0=
+github.com/antage/eventsource v0.0.0-20220422142129-c4aae935d5bd/go.mod h1:jXAZMa2S7OGjBCXWeQVOIZd+LXToszS2zCh0NiHRGvE=
 github.com/antchfx/xmlquery v1.4.0 h1:xg2HkfcRK2TeTbdb0m1jxCYnvsPaGY/oeZWTGqX/0hA=
 github.com/antchfx/xmlquery v1.4.0/go.mod h1:Ax2aeaeDjfIw3CwXKDQ0GkwZ6QlxoChlIBP+mGnDFjI=
 github.com/antchfx/xpath v1.3.0 h1:nTMlzGAK3IJ0bPpME2urTuFL76o4A96iYvoKFHRXJgc=
 github.com/antchfx/xpath v1.3.0/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
 github.com/ardanlabs/conf/v3 v3.1.7 h1:p232cF68TafoA5U9ZlbxUIhGJtGNdKHBXF80Fdqb5t0=
 github.com/ardanlabs/conf/v3 v3.1.7/go.mod h1:zclexWKe0NVj6LHQ8NgDDZ7bQ1spE0KeKPFficdtAjU=
+github.com/armon/go-radix v1.0.1-0.20221118154546-54df44f2176c h1:651/eoCRnQ7YtSjAnSzRucrJz+3iGEFt+ysraELS81M=
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+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
+google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
+google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/cmd/build/build.go b/internal/builder/builder.go
index 5daa940..88e3f02 100644
--- a/cmd/build/build.go
+++ b/internal/builder/builder.go
@@ -1,4 +1,4 @@
-package main
+package builder
 
 import (
 	"fmt"
@@ -16,11 +16,19 @@ import (
 	"github.com/pkg/errors"
 )
 
+type IOConfig struct {
+	Source      string `conf:"default:.,short:s,flag:src"`
+	Destination string `conf:"default:website,short:d,flag:dest"`
+	BaseURL     config.URL
+	Development bool `conf:"default:false,flag:dev"`
+}
+
 func mkdirp(dirs ...string) error {
 	return os.MkdirAll(path.Join(dirs...), 0755)
 }
 
 func outputToFile(output io.Reader, filename ...string) error {
+	slog.Debug(fmt.Sprintf("outputting file %s", path.Join(filename...)))
 	file, err := os.OpenFile(path.Join(filename...), os.O_WRONLY|os.O_CREATE, 0644)
 	if err != nil {
 		return errors.WithMessage(err, "could not open output file")
@@ -34,6 +42,7 @@ func outputToFile(output io.Reader, filename ...string) error {
 }
 
 func build(outDir string, config config.Config) error {
+	slog.Debug(fmt.Sprintf("output directory %s", outDir))
 	privateDir := path.Join(outDir, "private")
 	if err := mkdirp(privateDir); err != nil {
 		return errors.WithMessage(err, "could not create private directory")
@@ -48,7 +57,7 @@ func build(outDir string, config config.Config) error {
 		PermissionControl: cp.AddPermission(0755),
 	})
 	if err != nil {
-		log.Panic(errors.Errorf("could not copy static files: %v", err))
+		return errors.WithMessage(err, "could not copy static files")
 	}
 
 	if err := mkdirp(publicDir, "post"); err != nil {
@@ -163,17 +172,12 @@ func build(outDir string, config config.Config) error {
 	return nil
 }
 
-type IOConfig struct {
-	Source      string `conf:"default:.,short:s"`
-	Destination string `conf:"default:website,short:d"`
-	BaseURL     config.URL
-}
-
-func buildSite(ioConfig IOConfig) error {
+func BuildSite(ioConfig IOConfig) error {
 	config, err := config.GetConfig()
 	if err != nil {
 		log.Panic(errors.Errorf("could not get config: %v", err))
 	}
+	config.InjectLiveReload = ioConfig.Development
 
 	if ioConfig.BaseURL.URL != nil {
 		config.BaseURL.URL, err = url.Parse(ioConfig.BaseURL.String())
@@ -182,15 +186,12 @@ func buildSite(ioConfig IOConfig) error {
 		}
 	}
 
-	err = os.RemoveAll(ioConfig.Destination)
-	if err != nil {
-		log.Panic(errors.Errorf("could not remove public directory: %v", err))
-	}
-
-	if err := build(ioConfig.Destination, *config); err != nil {
-		return err
+	if ioConfig.Development && ioConfig.Destination != "website" {
+		err = os.RemoveAll(ioConfig.Destination)
+		if err != nil {
+			log.Panic(errors.Errorf("could not remove destination directory: %v", err))
+		}
 	}
 
-	slog.Debug("done")
-	return nil
+	return build(ioConfig.Destination, *config)
 }
diff --git a/cmd/build/posts.go b/internal/builder/posts.go
index f03caf3..223531b 100644
--- a/cmd/build/posts.go
+++ b/internal/builder/posts.go
@@ -1,4 +1,4 @@
-package main
+package builder
 
 import (
 	"bytes"
diff --git a/cmd/build/template.go b/internal/builder/template.go
index 84cf57c..74d0418 100644
--- a/cmd/build/template.go
+++ b/internal/builder/template.go
@@ -1,4 +1,4 @@
-package main
+package builder
 
 import (
 	"encoding/xml"
@@ -22,10 +22,11 @@ import (
 )
 
 var (
-	assetsOnce sync.Once
-	css        string
-	countHTML  *goquery.Document
-	templates  map[string]*os.File = make(map[string]*os.File)
+	assetsOnce     sync.Once
+	css            string
+	countHTML      *goquery.Document
+	liveReloadHTML *goquery.Document
+	templates      map[string]*os.File = make(map[string]*os.File)
 )
 
 func loadTemplate(path string) (file *os.File, err error) {
@@ -111,6 +112,14 @@ func layout(filename string, config config.Config, pageTitle string, pageURL str
 		}
 		defer countFile.Close()
 		countHTML, err = NewDocumentNoScript(countFile)
+		if config.InjectLiveReload {
+			liveReloadFile, err := os.OpenFile("templates/dev.html", os.O_RDONLY, 0)
+			if err != nil {
+				return
+			}
+			defer liveReloadFile.Close()
+			liveReloadHTML, err = goquery.NewDocumentFromReader(liveReloadFile)
+		}
 	})
 	if err != nil {
 		return nil, err
@@ -127,6 +136,9 @@ func layout(filename string, config config.Config, pageTitle string, pageURL str
 	doc.Find("title").Add(".p-name").SetText(pageTitle)
 	doc.Find("head > style").SetHtml(css)
 	doc.Find("body").setImgURL(pageURL, pageTitle)
+	if config.InjectLiveReload {
+		doc.Find("body").AppendSelection(liveReloadHTML.Find("body").Clone())
+	}
 	nav := doc.Find("nav")
 	navLink := doc.Find("nav a")
 	nav.Empty()
diff --git a/internal/config/config.go b/internal/config/config.go
index d2eabf0..578390e 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -5,7 +5,6 @@ import (
 	"log/slog"
 	"net/url"
 	"os"
-	"strconv"
 
 	"github.com/BurntSushi/toml"
 	"github.com/pkg/errors"
@@ -31,18 +30,17 @@ func (u *URL) UnmarshalText(text []byte) (err error) {
 }
 
 type Config struct {
-	DefaultLanguage        string `toml:"default_language"`
-	BaseURL                URL    `toml:"base_url"`
-	RedirectOtherHostnames bool   `toml:"redirect_other_hostnames"`
-	Port                   uint64
-	Production             bool
-	Title                  string
-	Email                  string
-	Description            string
-	DomainStartDate        string `toml:"domain_start_date"`
-	OriginalDomain         string `toml:"original_domain"`
-	Taxonomies             []Taxonomy
-	Extra                  struct {
+	DefaultLanguage  string `toml:"default_language"`
+	BaseURL          URL    `toml:"base_url"`
+	InjectLiveReload bool
+	Title            string
+	Email            string
+	Description      string
+	DomainStartDate  string `toml:"domain_start_date"`
+	OriginalDomain   string `toml:"original_domain"`
+	Taxonomies       []Taxonomy
+	CSP              *CSP `toml:"content-security-policy"`
+	Extra            struct {
 		Headers map[string]string
 	}
 	Menus map[string][]MenuItem
@@ -71,10 +69,5 @@ func GetConfig() (*Config, error) {
 			return nil, errors.Wrap(err, "config error")
 		}
 	}
-	port, err := strconv.ParseUint(getEnvFallback("PORT", "3000"), 10, 16)
-	if err != nil {
-		return nil, err
-	}
-	config.Port = port
 	return &config, nil
 }
diff --git a/internal/config/csp.go b/internal/config/csp.go
new file mode 100644
index 0000000..536d9fc
--- /dev/null
+++ b/internal/config/csp.go
@@ -0,0 +1,44 @@
+// Code generated  DO NOT EDIT.
+package config
+
+import (
+	"github.com/crewjam/csp"
+)
+
+type CSP struct {
+	BaseURI                 []string                     `csp:"base-uri" toml:"base-uri"`
+	BlockAllMixedContent    bool                         `csp:"block-all-mixed-content" toml:"block-all-mixed-content"`
+	ChildSrc                []string                     `csp:"child-src" toml:"child-src"`
+	ConnectSrc              []string                     `csp:"connect-src" toml:"connect-src"`
+	DefaultSrc              []string                     `csp:"default-src" toml:"default-src"`
+	FontSrc                 []string                     `csp:"font-src" toml:"font-src"`
+	FormAction              []string                     `csp:"form-action" toml:"form-action"`
+	FrameAncestors          []string                     `csp:"frame-ancestors" toml:"frame-ancestors"`
+	FrameSrc                []string                     `csp:"frame-src" toml:"frame-src"`
+	ImgSrc                  []string                     `csp:"img-src" toml:"img-src"`
+	ManifestSrc             []string                     `csp:"manifest-src" toml:"manifest-src"`
+	MediaSrc                []string                     `csp:"media-src" toml:"media-src"`
+	NavigateTo              []string                     `csp:"navigate-to" toml:"navigate-to"`
+	ObjectSrc               []string                     `csp:"object-src" toml:"object-src"`
+	PluginTypes             []string                     `csp:"plugin-types" toml:"plugin-types"`
+	PrefetchSrc             []string                     `csp:"prefetch-src" toml:"prefetch-src"`
+	Referrer                csp.ReferrerPolicy           `csp:"referrer" toml:"referrer"`
+	ReportTo                string                       `csp:"report-to" toml:"report-to"`
+	ReportURI               string                       `csp:"report-uri" toml:"report-uri"`
+	RequireSRIFor           []csp.RequireSRIFor          `csp:"require-sri-for" toml:"require-sri-for"`
+	RequireTrustedTypesFor  []csp.RequireTrustedTypesFor `csp:"require-trusted-types-for" toml:"require-trusted-types-for"`
+	Sandbox                 csp.Sandbox                  `csp:"sandbox" toml:"sandbox"`
+	ScriptSrc               []string                     `csp:"script-src" toml:"script-src"`
+	ScriptSrcAttr           []string                     `csp:"script-src-attr" toml:"script-src-attr"`
+	ScriptSrcElem           []string                     `csp:"script-src-elem" toml:"script-src-elem"`
+	StyleSrc                []string                     `csp:"style-src" toml:"style-src"`
+	StyleSrcAttr            []string                     `csp:"style-src-attr" toml:"style-src-attr"`
+	StyleSrcElem            []string                     `csp:"style-src-elem" toml:"style-src-elem"`
+	TrustedTypes            []string                     `csp:"trusted-types" toml:"trusted-types"`
+	UpgradeInsecureRequests bool                         `csp:"upgrade-insecure-requests" toml:"upgrade-insecure-requests"`
+	WorkerSrc               []string                     `csp:"worker-src" toml:"worker-src"`
+}
+
+func (c *CSP) String() string {
+	return csp.Header(*c).String()
+}
diff --git a/internal/config/cspgenerator.go b/internal/config/cspgenerator.go
new file mode 100644
index 0000000..4594d0d
--- /dev/null
+++ b/internal/config/cspgenerator.go
@@ -0,0 +1,79 @@
+package config
+
+//go:generate go run ../../cmd/cspgenerator/
+
+import (
+	"fmt"
+	"os"
+	"reflect"
+
+	"github.com/crewjam/csp"
+	"github.com/fatih/structtag"
+)
+
+func GenerateCSP() error {
+	t := reflect.TypeFor[csp.Header]()
+	file, err := os.OpenFile("./csp.go", os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	_, err = fmt.Fprintf(file, `// Code generated  DO NOT EDIT.
+package config
+
+import (
+	"github.com/crewjam/csp"
+)
+
+`)
+	if err != nil {
+		return err
+	}
+
+	_, err = fmt.Fprintf(file, "type CSP struct {\n")
+	if err != nil {
+		return err
+	}
+
+	for i := 0; i < t.NumField(); i++ {
+		field := t.Field(i)
+		var t reflect.Type
+		if field.Type.Kind() == reflect.Slice {
+			t = field.Type
+		} else {
+			t = field.Type
+		}
+		tags, err := structtag.Parse(string(field.Tag))
+		if err != nil {
+			return err
+		}
+		cspTag, err := tags.Get("csp")
+		if err != nil {
+			return err
+		}
+		tags.Set(&structtag.Tag{
+			Key:  "toml",
+			Name: cspTag.Name,
+		})
+
+		_, err = fmt.Fprintf(file, "\t%-23s %-28s `%s`\n", field.Name, t, tags.String())
+		if err != nil {
+			return err
+		}
+	}
+	_, err = fmt.Fprintln(file, "}")
+	if err != nil {
+		return err
+	}
+
+	_, err = fmt.Fprintln(file, `
+func (c *CSP) String() string {
+	return csp.Header(*c).String()
+}
+	`)
+	if err != nil {
+		return err
+	}
+	return nil
+}
diff --git a/cmd/server/filemap.go b/internal/server/filemap.go
index 5f7e1bb..466db49 100644
--- a/cmd/server/filemap.go
+++ b/internal/server/filemap.go
@@ -1,4 +1,4 @@
-package main
+package server
 
 import (
 	"fmt"
diff --git a/cmd/server/logging.go b/internal/server/logging.go
index 601baab..135f06e 100644
--- a/cmd/server/logging.go
+++ b/internal/server/logging.go
@@ -1,4 +1,4 @@
-package main
+package server
 
 import (
 	"fmt"
diff --git a/cmd/server/server.go b/internal/server/server.go
index 9a1e48a..2e9796d 100644
--- a/cmd/server/server.go
+++ b/internal/server/server.go
@@ -1,6 +1,7 @@
-package main
+package server
 
 import (
+	"context"
 	"fmt"
 	"io"
 	"log"
@@ -9,6 +10,8 @@ import (
 	"net"
 	"net/http"
 	"os"
+	"path"
+	"slices"
 	"strings"
 	"time"
 
@@ -16,17 +19,31 @@ import (
 
 	"github.com/getsentry/sentry-go"
 	sentryhttp "github.com/getsentry/sentry-go/http"
+	"github.com/pkg/errors"
 	"github.com/shengyanli1982/law"
 )
 
 var config *cfg.Config
 
+type Config struct {
+	Production    bool    `conf:"default:false"`
+	InDevServer   bool    `conf:"default:false"`
+	Root          string  `conf:"default:website"`
+	ListenAddress string  `conf:"default:localhost"`
+	Port          string  `conf:"default:3000,short:p"`
+	BaseURL       cfg.URL `conf:"default:http://localhost:3000,short:b"`
+}
+
 type HTTPError struct {
 	Error   error
 	Message string
 	Code    int
 }
 
+type Server struct {
+	*http.Server
+}
+
 func canonicalisePath(path string) (cPath string, differs bool) {
 	cPath = path
 	if strings.HasSuffix(path, "/index.html") {
@@ -52,6 +69,7 @@ func serveFile(w http.ResponseWriter, r *http.Request) *HTTPError {
 	}
 	w.Header().Add("ETag", file.etag)
 	w.Header().Add("Vary", "Accept-Encoding")
+	w.Header().Add("Content-Security-Policy", config.CSP.String())
 	for k, v := range config.Extra.Headers {
 		w.Header().Add(k, v)
 	}
@@ -93,20 +111,28 @@ func fixupMIMETypes() {
 	}
 }
 
-func startServer(runtimeConfig *Config) {
+func applyDevModeOverrides(config *cfg.Config) {
+	config.CSP.ScriptSrc = slices.Insert(config.CSP.ScriptSrc, 0, "'unsafe-inline'")
+	config.CSP.ConnectSrc = slices.Insert(config.CSP.ConnectSrc, 0, "'self'")
+}
+
+func New(runtimeConfig *Config) (*Server, error) {
 	fixupMIMETypes()
 
-	c, err := cfg.GetConfig()
+	var err error
+	config, err = cfg.GetConfig()
 	if err != nil {
-		log.Panicf("parsing configuration file: %v", err)
+		return nil, errors.WithMessage(err, "error parsing configuration file")
+	}
+	if runtimeConfig.InDevServer {
+		applyDevModeOverrides(config)
 	}
-	config = c
 
-	prefix := "website/public"
+	prefix := path.Join(runtimeConfig.Root, "public")
 	slog.Debug("registering content files", "prefix", prefix)
 	err = registerContentFiles(prefix)
 	if err != nil {
-		log.Panicf("registering content files: %v", err)
+		return nil, errors.WithMessagef(err, "registering content files")
 	}
 
 	env := "development"
@@ -121,13 +147,14 @@ func startServer(runtimeConfig *Config) {
 		Environment:      env,
 	})
 	if err != nil {
-		log.Panic("could not set up sentry")
+		return nil, errors.WithMessage(err, "could not set up sentry")
 	}
 	defer sentry.Flush(2 * time.Second)
 	sentryHandler := sentryhttp.New(sentryhttp.Options{
 		Repanic: true,
 	})
 
+	top := http.NewServeMux()
 	mux := http.NewServeMux()
 	slog.Debug("binding main handler to", "host", runtimeConfig.BaseURL.Hostname()+"/")
 	mux.Handle(runtimeConfig.BaseURL.Hostname()+"/", webHandler(serveFile))
@@ -143,7 +170,7 @@ func startServer(runtimeConfig *Config) {
 	} else {
 		logWriter = os.Stdout
 	}
-	http.Handle("/",
+	top.Handle("/",
 		sentryHandler.Handle(
 			wrapHandlerWithLogging(mux, wrappedHandlerOptions{
 				defaultHostname: runtimeConfig.BaseURL.Hostname(),
@@ -152,10 +179,43 @@ func startServer(runtimeConfig *Config) {
 		),
 	)
 	// no logging, no sentry
-	http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
+	top.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	})
 
-	listenAddress := net.JoinHostPort(runtimeConfig.ListenAddress, fmt.Sprint(runtimeConfig.Port))
-	log.Fatal(http.ListenAndServe(listenAddress, nil))
+	listenAddress := net.JoinHostPort(runtimeConfig.ListenAddress, runtimeConfig.Port)
+	return &Server{
+		&http.Server{
+			Addr:    listenAddress,
+			Handler: top,
+		},
+	}, nil
+}
+
+func (s *Server) Start() error {
+	if err := s.ListenAndServe(); err != http.ErrServerClosed {
+		return err
+	}
+	return nil
+}
+
+func (s *Server) Stop() chan struct{} {
+	slog.Debug("stop called")
+
+	idleConnsClosed := make(chan struct{})
+
+	go func() {
+		slog.Debug("shutting down server")
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+		err := s.Server.Shutdown(ctx)
+		slog.Debug("server shut down")
+		if err != nil {
+			// Error from closing listeners, or context timeout:
+			log.Printf("HTTP server Shutdown: %v", err)
+		}
+		close(idleConnsClosed)
+	}()
+
+	return idleConnsClosed
 }
diff --git a/justfile b/justfile
index e4021c0..74ee08f 100755
--- a/justfile
+++ b/justfile
@@ -34,6 +34,17 @@ nix-build what:
 
 watch-server: (watch-flake "watchexec -r -i content -i templates go run ./cmd/server")
 
+dev:
+    #!/usr/bin/env bash
+    set -euxo pipefail
+    tmp="$(mktemp -d -t website-XXXXXX)" || exit 1
+    echo using temp directory $tmp
+    trap "{ echo cleaning up $tmp; rm -rf \"$tmp\"; }" EXIT
+    go build -o $tmp ./cmd/dev ./cmd/build ./cmd/server
+    "${tmp}/dev" --temp-dir "${tmp}"
+
+watch-dev: (watch-flake "watchexec -r just dev")
+
 docker-stream system=(arch() + "-linux"):
     @nix build --print-out-paths .#docker-stream-{{ system }} | sh
 
diff --git a/nix/gomod2nix.toml b/nix/gomod2nix.toml
index 1e2501d..8c6ac1f 100644
--- a/nix/gomod2nix.toml
+++ b/nix/gomod2nix.toml
@@ -17,6 +17,9 @@ schema = 3
   [mod."github.com/andybalholm/cascadia"]
     version = "v1.3.2"
     hash = "sha256-Nc9SkqJO/ecincVcUBFITy24TMmMGj5o0Q8EgdNhrEk="
+  [mod."github.com/antage/eventsource"]
+    version = "v0.0.0-20220422142129-c4aae935d5bd"
+    hash = "sha256-5JLLEwW3L3Mt756q3Qw0TKtrNjQ3VtEsV9S2JfdPHy0="
   [mod."github.com/antchfx/xmlquery"]
     version = "v1.4.0"
     hash = "sha256-ReWP6CPDvvWUd7vY0qIP4qyxvrotXrx9HXbGbeProP4="
@@ -26,30 +29,69 @@ schema = 3
   [mod."github.com/ardanlabs/conf/v3"]
     version = "v3.1.7"
     hash = "sha256-7H53l0JN5Q6hkAgBivVQ8lFd03oNmP1IG8ihzLKm2CQ="
+  [mod."github.com/bep/godartsass"]
+    version = "v1.2.0"
+    hash = "sha256-kkKRFesHX8Yp1+/L7yFeRqltBRlAVKgdSN4d7Lc/uI8="
+  [mod."github.com/bep/godartsass/v2"]
+    version = "v2.0.0"
+    hash = "sha256-ISvlb0UVikyLGPCrkQus//HVgAcgplQDhdIuTrmToRM="
+  [mod."github.com/bep/golibsass"]
+    version = "v1.1.1"
+    hash = "sha256-rQK/w54sh57GtCG8plKbkFxWBZB0+7RLMvOGCV2jvqY="
+  [mod."github.com/cli/safeexec"]
+    version = "v1.0.1"
+    hash = "sha256-74r/MHyMIxDSGA2D862d/OQ3lYLozxoUIRMyL0n03m8="
+  [mod."github.com/crewjam/csp"]
+    version = "v0.0.2"
+    hash = "sha256-4vlGmDdQjPiXmueCV51fJH/hRcG8eqhCi9TENCXjzfA="
   [mod."github.com/deckarep/golang-set/v2"]
     version = "v2.6.0"
     hash = "sha256-ni1XK75Q8iBBmxgoyZTedP4RmrUPzFC4978xB4HKdfs="
+  [mod."github.com/fatih/structtag"]
+    version = "v1.2.0"
+    hash = "sha256-Y2pjiEmMsxfUH8LONU2/f8k1BibOHeLKJmi4uZm/SSU="
+  [mod."github.com/fsnotify/fsnotify"]
+    version = "v1.7.0"
+    hash = "sha256-MdT2rQyQHspPJcx6n9ozkLbsktIOJutOqDuKpNAtoZY="
   [mod."github.com/getsentry/sentry-go"]
     version = "v0.27.0"
     hash = "sha256-PTkTzVNogqFA/5rc6INLY6RxK5uR1AoJFOO+pOPdE7Q="
+  [mod."github.com/gobwas/glob"]
+    version = "v0.2.3"
+    hash = "sha256-hYHMUdwxVkMOjSKjR7UWO0D0juHdI4wL8JEy5plu/Jc="
+  [mod."github.com/gohugoio/hugo"]
+    version = "v0.125.4"
+    hash = "sha256-BHTawZLm/82SXJyGq17pIizqHCG2NJRuqTioKqcu880="
   [mod."github.com/golang/groupcache"]
     version = "v0.0.0-20210331224755-41bb18bfe9da"
     hash = "sha256-7Gs7CS9gEYZkbu5P4hqPGBpeGZWC64VDwraSKFF+VR0="
-  [mod."github.com/kr/pretty"]
-    version = "v0.3.1"
-    hash = "sha256-DlER7XM+xiaLjvebcIPiB12oVNjyZHuJHoRGITzzpKU="
+  [mod."github.com/mattn/go-isatty"]
+    version = "v0.0.20"
+    hash = "sha256-qhw9hWtU5wnyFyuMbKx+7RB8ckQaFQ8D+8GKPkN3HHQ="
+  [mod."github.com/mitchellh/hashstructure"]
+    version = "v1.1.0"
+    hash = "sha256-dNPVpLRsCa2XZHlCRRtkpBVqb8rpHIocpFPNCqZg2EY="
   [mod."github.com/otiai10/copy"]
     version = "v1.14.0"
     hash = "sha256-xsaL1ddkPS544y0Jv7u/INUALBYmYq29ddWvysLXk4A="
+  [mod."github.com/pelletier/go-toml/v2"]
+    version = "v2.2.1"
+    hash = "sha256-gmQ4CTz/MI97D3pYqU7mpxqo8gBTDccQ1Cp0lAMmJUc="
   [mod."github.com/pkg/errors"]
     version = "v0.9.1"
     hash = "sha256-mNfQtcrQmu3sNg/7IwiieKWOgFQOVVe2yXgKBpe/wZw="
-  [mod."github.com/rogpeppe/go-internal"]
-    version = "v1.10.0"
-    hash = "sha256-vR7+d0aoKTuKeTYSgZxsGhH9e5Zvxix3Zrq9SPm5+NQ="
   [mod."github.com/shengyanli1982/law"]
     version = "v0.1.13"
     hash = "sha256-gjXWxWR6XCpOUYKBzPaObw2hPOmkoVtuHd1aMHm/ljA="
+  [mod."github.com/spf13/afero"]
+    version = "v1.11.0"
+    hash = "sha256-+rV3cDZr13N8E0rJ7iHmwsKYKH+EhV+IXBut+JbBiIE="
+  [mod."github.com/spf13/cast"]
+    version = "v1.6.0"
+    hash = "sha256-hxioqRZfXE0AE5099wmn3YG0AZF8Wda2EB4c7zHF6zI="
+  [mod."github.com/tdewolff/parse/v2"]
+    version = "v2.7.13"
+    hash = "sha256-mG6TO8hcXUmi9yKIogrfoDLWE6i6qs4LTjr7mSmqb7M="
   [mod."github.com/yuin/goldmark"]
     version = "v1.7.1"
     hash = "sha256-3EUgwoZRRs2jNBWSbB0DGNmfBvx7CeAgEwyUdaRaeR4="
@@ -65,6 +107,9 @@ schema = 3
   [mod."golang.org/x/text"]
     version = "v0.14.0"
     hash = "sha256-yh3B0tom1RfzQBf1RNmfdNWF1PtiqxV41jW1GVS6JAg="
+  [mod."google.golang.org/protobuf"]
+    version = "v1.33.0"
+    hash = "sha256-cWwQjtUwSIEkAlAadrlxK1PYZXTRrV4NKzt7xDpJgIU="
   [mod."gopkg.in/check.v1"]
     version = "v1.0.0-20201130134442-10cb98267c6c"
     hash = "sha256-VlIpM2r/OD+kkyItn6vW35dyc0rtkJufA93rjFyzncs="
diff --git a/templates/dev.html b/templates/dev.html
new file mode 100644
index 0000000..0ca383e
--- /dev/null
+++ b/templates/dev.html
@@ -0,0 +1,8 @@
+<body>
+  <script defer>
+    new EventSource("/_/reload").onmessage = event => {
+      console.log("got message", event)
+      window.location.reload()
+    };
+  </script>
+</body>