diff --git a/conf/config.example.toml b/conf/config.example.toml
index dd7a12a..39db773 100644
--- a/conf/config.example.toml
+++ b/conf/config.example.toml
@@ -1,7 +1,7 @@
 # Unless otherwise noted, every value in this file is the same
 # as the intrinsic default value.
 
-log-format = "datetime+message"
+log-format = "text"
 
 [server]
 # Use "-" to disable the handler.
diff --git a/go.mod b/go.mod
index c21a21d..25929a9 100644
--- a/go.mod
+++ b/go.mod
@@ -7,6 +7,7 @@ require (
 	github.com/c2h5oh/datasize v0.0.0-20231215233829-aa82cc1e6500
 	github.com/creasty/defaults v1.8.0
 	github.com/getsentry/sentry-go v0.35.3
+	github.com/getsentry/sentry-go/slog v0.35.3
 	github.com/go-git/go-billy/v6 v6.0.0-20250627091229-31e2a16eef30
 	github.com/go-git/go-git/v6 v6.0.0-20250910120214-3a68d0404116
 	github.com/honeybadger-io/honeybadger-go v0.8.0
@@ -15,6 +16,7 @@ require (
 	github.com/minio/minio-go/v7 v7.0.95
 	github.com/pelletier/go-toml/v2 v2.2.4
 	github.com/prometheus/client_golang v1.23.2
+	github.com/samber/slog-multi v1.5.0
 	github.com/tj/go-redirects v0.0.0-20200911105812-fd1ba1020b37
 	github.com/valyala/fasttemplate v1.2.2
 	google.golang.org/protobuf v1.36.9
@@ -50,6 +52,8 @@ require (
 	github.com/prometheus/common v0.66.1 // indirect
 	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/rs/xid v1.6.0 // indirect
+	github.com/samber/lo v1.51.0 // indirect
+	github.com/samber/slog-common v0.19.0 // indirect
 	github.com/sergi/go-diff v1.4.0 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
 	github.com/tinylib/msgp v1.3.0 // indirect
diff --git a/go.sum b/go.sum
index dbc26f2..0ba8181 100644
--- a/go.sum
+++ b/go.sum
@@ -33,6 +33,8 @@ github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc
 github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
 github.com/getsentry/sentry-go v0.35.3 h1:u5IJaEqZyPdWqe/hKlBKBBnMTSxB/HenCqF3QLabeds=
 github.com/getsentry/sentry-go v0.35.3/go.mod h1:mdL49ixwT2yi57k5eh7mpnDyPybixPzlzEJFu0Z76QA=
+github.com/getsentry/sentry-go/slog v0.35.3 h1:4MQEfo3U25jxKhrRYMS6wPXpW3WXSrjSRmDQZroalaw=
+github.com/getsentry/sentry-go/slog v0.35.3/go.mod h1:BhcfZ6LB5VpHAl6kOKf0Bsy2AXJbTl9Nit9Zq4KApus=
 github.com/gliderlabs/ssh v0.3.8 h1:a4YXD1V7xMF9g5nTkdfnja3Sxy1PVDCj1Zg4Wb8vY6c=
 github.com/gliderlabs/ssh v0.3.8/go.mod h1:xYoytBv1sV0aL3CavoDuJIQNURXkkfPA/wxQ1pL1fAU=
 github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxIA=
@@ -71,8 +73,9 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/maypok86/otter/v2 v2.2.1 h1:hnGssisMFkdisYcvQ8L019zpYQcdtPse+g0ps2i7cfI=
@@ -113,6 +116,12 @@ github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0t
 github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
 github.com/rs/xid v1.6.0 h1:fV591PaemRlL6JfRxGDEPl69wICngIQ3shQtzfy2gxU=
 github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
+github.com/samber/lo v1.51.0 h1:kysRYLbHy/MB7kQZf5DSN50JHmMsNEdeY24VzJFu7wI=
+github.com/samber/lo v1.51.0/go.mod h1:4+MXEGsJzbKGaUEQFKBq2xtfuznW9oz/WrgyzMzRoM0=
+github.com/samber/slog-common v0.19.0 h1:fNcZb8B2uOLooeYwFpAlKjkQTUafdjfqKcwcC89G9YI=
+github.com/samber/slog-common v0.19.0/go.mod h1:dTz+YOU76aH007YUU0DffsXNsGFQRQllPQh9XyNoA3M=
+github.com/samber/slog-multi v1.5.0 h1:UDRJdsdb0R5vFQFy3l26rpX3rL3FEPJTJ2yKVjoiT1I=
+github.com/samber/slog-multi v1.5.0/go.mod h1:im2Zi3mH/ivSY5XDj6LFcKToRIWPw1OcjSVSdXt+2d0=
 github.com/sergi/go-diff v1.4.0 h1:n/SP9D5ad1fORl+llWyN+D6qoUETXNZARKjyY2/KVCw=
 github.com/sergi/go-diff v1.4.0/go.mod h1:A0bzQcvG0E7Rwjx0REVgAGH58e96+X0MeOfepqsbeW4=
 github.com/shirou/gopsutil v3.21.11+incompatible h1:+1+c1VGhc88SSonWP6foOcLhvnKlUeu/erjjvaPEYiI=
diff --git a/src/config.go b/src/config.go
index 0b0e1a0..d2caf58 100644
--- a/src/config.go
+++ b/src/config.go
@@ -37,7 +37,7 @@ func (t *Duration) MarshalText() ([]byte, error) {
 type Config struct {
 	Insecure  bool             `toml:"-" env:"insecure"`
 	Features  []string         `toml:"features"`
-	LogFormat string           `toml:"log-format" default:"datetime+message"`
+	LogFormat string           `toml:"log-format" default:"text"`
 	Server    ServerConfig     `toml:"server"`
 	Wildcard  []WildcardConfig `toml:"wildcard"`
 	Storage   StorageConfig    `toml:"storage"`
diff --git a/src/main.go b/src/main.go
index c83d5dc..ec8092a 100644
--- a/src/main.go
+++ b/src/main.go
@@ -71,9 +71,6 @@ func serve(listener net.Listener, handler http.Handler) {
 }
 
 func main() {
-	InitObservability()
-	defer FiniObservability()
-
 	printConfigEnvVars := flag.Bool("print-config-env-vars", false,
 		"print every recognized configuration environment variable and exit")
 	printConfig := flag.Bool("print-config", false,
@@ -107,12 +104,8 @@ func main() {
 		return
 	}
 
-	switch config.LogFormat {
-	case "message":
-		log.SetFlags(0)
-	case "datetime+message":
-		log.SetFlags(log.Ldate | log.Ltime | log.LUTC)
-	}
+	InitObservability()
+	defer FiniObservability()
 
 	if len(config.Features) > 0 {
 		log.Println("features:", strings.Join(config.Features, ", "))
diff --git a/src/observe.go b/src/observe.go
index 3e778ab..67ffb88 100644
--- a/src/observe.go
+++ b/src/observe.go
@@ -1,16 +1,22 @@
 package main
 
 import (
+	"context"
 	"log"
+	"log/slog"
 	"net/http"
 	"os"
 	"runtime/debug"
+	"strconv"
 	"time"
 
 	"github.com/honeybadger-io/honeybadger-go"
 
 	"github.com/getsentry/sentry-go"
 	sentryhttp "github.com/getsentry/sentry-go/http"
+	sentryslog "github.com/getsentry/sentry-go/slog"
+
+	slogmulti "github.com/samber/slog-multi"
 )
 
 func hasHoneybadger() bool {
@@ -27,6 +33,21 @@ func InitObservability() {
 		environment = value
 	}
 
+	logHandlers := []slog.Handler{}
+
+	switch config.LogFormat {
+	case "none":
+		// nothing to do
+	case "text":
+		logHandlers = append(logHandlers,
+			slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{}))
+	case "json":
+		logHandlers = append(logHandlers,
+			slog.NewJSONHandler(os.Stderr, &slog.HandlerOptions{}))
+	default:
+		log.Println("unknown log format", config.LogFormat)
+	}
+
 	if hasHoneybadger() {
 		honeybadger.Configure(honeybadger.Configuration{
 			Env: environment,
@@ -35,13 +56,27 @@ func InitObservability() {
 	}
 
 	if hasSentry() {
+		enableLogs := false
+		if value, err := strconv.ParseBool(os.Getenv("SENTRY_LOGS")); err == nil {
+			enableLogs = value
+		}
+
 		options := sentry.ClientOptions{}
-		options.Environment = environment
 		options.Dsn = os.Getenv("SENTRY_DSN")
+		options.Environment = environment
+		options.EnableLogs = enableLogs
 		if err := sentry.Init(options); err != nil {
 			log.Fatalf("sentry: %s\n", err)
 		}
+
+		if enableLogs {
+			logHandlers = append(logHandlers, sentryslog.Option{
+				AddSource: true,
+			}.NewSentryHandler(context.Background()))
+		}
 	}
+
+	slog.SetDefault(slog.New(slogmulti.Fanout(logHandlers...)))
 }
 
 func FiniObservability() {