diff --git a/history/feed.go b/history/feed.go
index 4906816..edd0dda 100644
--- a/history/feed.go
+++ b/history/feed.go
@@ -3,11 +3,12 @@ package history
 import (
 	"errors"
 	"fmt"
-	"github.com/bouncepaw/mycorrhiza/internal/cfg"
 	"net/url"
 	"strings"
 	"time"
 
+	"github.com/bouncepaw/mycorrhiza/internal/cfg"
+
 	"github.com/gorilla/feeds"
 )
 
diff --git a/history/history.go b/history/history.go
index b889e80..0e77786 100644
--- a/history/history.go
+++ b/history/history.go
@@ -4,7 +4,7 @@ package history
 import (
 	"bytes"
 	"fmt"
-	"log"
+	"log/slog"
 	"os/exec"
 	"path/filepath"
 	"regexp"
@@ -21,12 +21,14 @@ var renameMsgPattern = regexp.MustCompile(`^Rename ‘(.*)’ to ‘.*’`)
 var gitEnv = []string{"GIT_COMMITTER_NAME=wikimind", "GIT_COMMITTER_EMAIL=wikimind@mycorrhiza"}
 
 // Start finds git and initializes git credentials.
-func Start() {
+func Start() error {
 	path, err := exec.LookPath("git")
 	if err != nil {
-		log.Fatal("Could not find the git executable. Check your $PATH.")
+		slog.Error("Could not find the Git executable. Check your $PATH.")
+		return err
 	}
 	gitpath = path
+	return nil
 }
 
 // InitGitRepo checks a Git repository and initializes it if necessary.
@@ -44,7 +46,7 @@ func InitGitRepo() {
 		}
 	}
 	if !isGitRepo {
-		log.Println("Initializing Git repo at", files.HyphaeDir())
+		slog.Info("Initializing Git repo", "path", files.HyphaeDir())
 		gitsh("init")
 		gitsh("config", "core.quotePath", "false")
 	}
@@ -60,7 +62,7 @@ func gitsh(args ...string) (out bytes.Buffer, err error) {
 
 	b, err := cmd.CombinedOutput()
 	if err != nil {
-		log.Println("gitsh:", err)
+		slog.Info("Git command failed", "err", err, "output", string(b))
 	}
 	return *bytes.NewBuffer(b), err
 }
@@ -77,7 +79,9 @@ func silentGitsh(args ...string) (out bytes.Buffer, err error) {
 
 // Rename renames from `from` to `to` using `git mv`.
 func Rename(from, to string) error {
-	log.Println(util.ShorterPath(from), util.ShorterPath(to))
+	slog.Info("Renaming file with git mv",
+		"from", util.ShorterPath(from),
+		"to", util.ShorterPath(to))
 	_, err := gitsh("mv", "--force", from, to)
 	return err
 }
diff --git a/history/histweb/histview.go b/history/histweb/histview.go
index 196b998..7c7b3a4 100644
--- a/history/histweb/histview.go
+++ b/history/histweb/histview.go
@@ -4,19 +4,21 @@ package histweb
 import (
 	"embed"
 	"fmt"
-	"github.com/bouncepaw/mycorrhiza/history"
-	"github.com/bouncepaw/mycorrhiza/internal/cfg"
-	"github.com/bouncepaw/mycorrhiza/internal/files"
-	hyphae2 "github.com/bouncepaw/mycorrhiza/internal/hyphae"
-	"github.com/bouncepaw/mycorrhiza/util"
-	viewutil2 "github.com/bouncepaw/mycorrhiza/web/viewutil"
-	"github.com/gorilla/mux"
 	"html/template"
-	"log"
+	"log/slog"
 	"net/http"
 	"path/filepath"
 	"strconv"
 	"strings"
+
+	"github.com/bouncepaw/mycorrhiza/history"
+	"github.com/bouncepaw/mycorrhiza/internal/cfg"
+	"github.com/bouncepaw/mycorrhiza/internal/files"
+	"github.com/bouncepaw/mycorrhiza/internal/hyphae"
+	"github.com/bouncepaw/mycorrhiza/util"
+	"github.com/bouncepaw/mycorrhiza/web/viewutil"
+
+	"github.com/gorilla/mux"
 )
 
 func InitHandlers(rtr *mux.Router) {
@@ -30,9 +32,9 @@ func InitHandlers(rtr *mux.Router) {
 	rtr.HandleFunc("/recent-changes-atom", handlerRecentChangesAtom)
 	rtr.HandleFunc("/recent-changes-json", handlerRecentChangesJSON)
 
-	chainPrimitiveDiff = viewutil2.CopyEnRuWith(fs, "view_primitive_diff.html", ruTranslation)
-	chainRecentChanges = viewutil2.CopyEnRuWith(fs, "view_recent_changes.html", ruTranslation)
-	chainHistory = viewutil2.CopyEnRuWith(fs, "view_history.html", ruTranslation)
+	chainPrimitiveDiff = viewutil.CopyEnRuWith(fs, "view_primitive_diff.html", ruTranslation)
+	chainRecentChanges = viewutil.CopyEnRuWith(fs, "view_recent_changes.html", ruTranslation)
+	chainHistory = viewutil.CopyEnRuWith(fs, "view_history.html", ruTranslation)
 }
 
 func handlerPrimitiveDiff(w http.ResponseWriter, rq *http.Request) {
@@ -45,12 +47,12 @@ func handlerPrimitiveDiff(w http.ResponseWriter, rq *http.Request) {
 	}
 	var (
 		mycoFilePath string
-		h            = hyphae2.ByName(util.CanonicalName(slug))
+		h            = hyphae.ByName(util.CanonicalName(slug))
 	)
 	switch h := h.(type) {
-	case hyphae2.ExistingHypha:
+	case hyphae.ExistingHypha:
 		mycoFilePath = h.TextFilePath()
-	case *hyphae2.EmptyHypha:
+	case *hyphae.EmptyHypha:
 		mycoFilePath = filepath.Join(files.HyphaeDir(), h.CanonicalName()+".myco")
 	}
 	text, err := history.PrimitiveDiffAtRevision(mycoFilePath, revHash)
@@ -58,7 +60,7 @@ func handlerPrimitiveDiff(w http.ResponseWriter, rq *http.Request) {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
-	primitiveDiff(viewutil2.MetaFrom(w, rq), h, revHash, text)
+	primitiveDiff(viewutil.MetaFrom(w, rq), h, revHash, text)
 }
 
 // handlerRecentChanges displays the /recent-changes/ page.
@@ -68,7 +70,7 @@ func handlerRecentChanges(w http.ResponseWriter, rq *http.Request) {
 	if editCount > 100 {
 		return
 	}
-	recentChanges(viewutil2.MetaFrom(w, rq), editCount, history.RecentChanges(editCount))
+	recentChanges(viewutil.MetaFrom(w, rq), editCount, history.RecentChanges(editCount))
 }
 
 // handlerHistory lists all revisions of a hypha.
@@ -81,9 +83,11 @@ func handlerHistory(w http.ResponseWriter, rq *http.Request) {
 	if err == nil {
 		list = history.WithRevisions(hyphaName, revs)
 	}
-	log.Println("Found", len(revs), "revisions for", hyphaName)
 
-	historyView(viewutil2.MetaFrom(w, rq), hyphaName, list)
+	// TODO: extra log, not needed?
+	slog.Info("Found revisions", "hyphaName", hyphaName, "n", len(revs), "err", err)
+
+	historyView(viewutil.MetaFrom(w, rq), hyphaName, list)
 }
 
 // genericHandlerOfFeeds is a helper function for the web feed handlers.
@@ -135,20 +139,20 @@ var (
 {{define "n recent changes"}}{{.}} свеж{{if eq . 1}}ая правка{{else if le . 4}}их правок{{else}}их правок{{end}}{{end}}
 {{define "recent empty"}}Правки не найдены.{{end}}
 `
-	chainPrimitiveDiff, chainRecentChanges, chainHistory viewutil2.Chain
+	chainPrimitiveDiff, chainRecentChanges, chainHistory viewutil.Chain
 )
 
 type recentChangesData struct {
-	*viewutil2.BaseData
+	*viewutil.BaseData
 	EditCount int
 	Changes   []history.Revision
 	UserHypha string
 	Stops     []int
 }
 
-func recentChanges(meta viewutil2.Meta, editCount int, changes []history.Revision) {
-	viewutil2.ExecutePage(meta, chainRecentChanges, recentChangesData{
-		BaseData:  &viewutil2.BaseData{},
+func recentChanges(meta viewutil.Meta, editCount int, changes []history.Revision) {
+	viewutil.ExecutePage(meta, chainRecentChanges, recentChangesData{
+		BaseData:  &viewutil.BaseData{},
 		EditCount: editCount,
 		Changes:   changes,
 		UserHypha: cfg.UserHypha,
@@ -157,13 +161,13 @@ func recentChanges(meta viewutil2.Meta, editCount int, changes []history.Revisio
 }
 
 type primitiveDiffData struct {
-	*viewutil2.BaseData
+	*viewutil.BaseData
 	HyphaName string
 	Hash      string
 	Text      template.HTML
 }
 
-func primitiveDiff(meta viewutil2.Meta, h hyphae2.Hypha, hash, text string) {
+func primitiveDiff(meta viewutil.Meta, h hyphae.Hypha, hash, text string) {
 	hunks := history.SplitPrimitiveDiff(text)
 	if len(hunks) > 0 {
 		var buf strings.Builder
@@ -198,8 +202,8 @@ func primitiveDiff(meta viewutil2.Meta, h hyphae2.Hypha, hash, text string) {
 		text = fmt.Sprintf(
 			`<pre class="codeblock"><code>%s</code></pre>`, text)
 	}
-	viewutil2.ExecutePage(meta, chainPrimitiveDiff, primitiveDiffData{
-		BaseData:  &viewutil2.BaseData{},
+	viewutil.ExecutePage(meta, chainPrimitiveDiff, primitiveDiffData{
+		BaseData:  &viewutil.BaseData{},
 		HyphaName: h.CanonicalName(),
 		Hash:      hash,
 		Text:      template.HTML(text),
@@ -207,14 +211,14 @@ func primitiveDiff(meta viewutil2.Meta, h hyphae2.Hypha, hash, text string) {
 }
 
 type historyData struct {
-	*viewutil2.BaseData
+	*viewutil.BaseData
 	HyphaName string
 	Contents  string
 }
 
-func historyView(meta viewutil2.Meta, hyphaName, contents string) {
-	viewutil2.ExecutePage(meta, chainHistory, historyData{
-		BaseData: &viewutil2.BaseData{
+func historyView(meta viewutil.Meta, hyphaName, contents string) {
+	viewutil.ExecutePage(meta, chainHistory, historyData{
+		BaseData: &viewutil.BaseData{
 			Addr: "/history/" + util.CanonicalName(hyphaName),
 		},
 		HyphaName: hyphaName,
diff --git a/history/operations.go b/history/operations.go
index 0f9eb80..71cfbd5 100644
--- a/history/operations.go
+++ b/history/operations.go
@@ -4,11 +4,11 @@ package history
 // 	Things related to writing history.
 import (
 	"fmt"
-	"github.com/bouncepaw/mycorrhiza/internal/user"
 	"os"
 	"path/filepath"
 	"sync"
 
+	"github.com/bouncepaw/mycorrhiza/internal/user"
 	"github.com/bouncepaw/mycorrhiza/util"
 )
 
diff --git a/history/revision.go b/history/revision.go
index 7f04309..9f5becb 100644
--- a/history/revision.go
+++ b/history/revision.go
@@ -2,7 +2,8 @@ package history
 
 import (
 	"fmt"
-	"log"
+	"log/slog"
+	"os"
 	"regexp"
 	"strconv"
 	"strings"
@@ -11,9 +12,11 @@ import (
 	"github.com/bouncepaw/mycorrhiza/internal/files"
 )
 
-// Revision represents a revision, duh. Hash is usually short. Username is extracted from email.
+// Revision represents a revision of a hypha.
 type Revision struct {
-	Hash              string
+	// Hash is usually short.
+	Hash string
+	// Username is extracted from email.
 	Username          string
 	Time              time.Time
 	Message           string
@@ -71,7 +74,9 @@ func (stream *recentChangesStream) next(n int) []Revision {
 
 	res, err := gitLog(args...)
 	if err != nil {
-		log.Fatal(err)
+		// TODO: return error
+		slog.Error("Failed to git log", "err", err)
+		os.Exit(1)
 	}
 	if len(res) != 0 {
 		stream.currHash = res[len(res)-1].Hash
@@ -103,14 +108,14 @@ func (stream recentChangesStream) iterator() func() (Revision, bool) {
 func RecentChanges(n int) []Revision {
 	stream := newRecentChangesStream()
 	revs := stream.next(n)
-	log.Printf("Found %d recent changes", len(revs))
+	slog.Info("Found recent changes", "n", len(revs))
 	return revs
 }
 
 // Revisions returns slice of revisions for the given hypha name, ordered most recent first.
 func Revisions(hyphaName string) ([]Revision, error) {
 	revs, err := gitLog("--", hyphaName+".*")
-	log.Printf("Found %d revisions for ‘%s’\n", len(revs), hyphaName)
+	slog.Info("Found revisions", "hyphaName", hyphaName, "n", len(revs), "err", err)
 	return revs, err
 }
 
diff --git a/main.go b/main.go
index b70189c..a2b6f50 100644
--- a/main.go
+++ b/main.go
@@ -5,13 +5,9 @@
 package main
 
 import (
-	"github.com/bouncepaw/mycorrhiza/internal/categories"
-	"log"
-	"os"
-	"syscall"
-
 	"github.com/bouncepaw/mycorrhiza/history"
 	"github.com/bouncepaw/mycorrhiza/internal/backlinks"
+	"github.com/bouncepaw/mycorrhiza/internal/categories"
 	"github.com/bouncepaw/mycorrhiza/internal/cfg"
 	"github.com/bouncepaw/mycorrhiza/internal/files"
 	"github.com/bouncepaw/mycorrhiza/internal/hyphae"
@@ -23,6 +19,8 @@ import (
 	"github.com/bouncepaw/mycorrhiza/web"
 	"github.com/bouncepaw/mycorrhiza/web/static"
 	"github.com/bouncepaw/mycorrhiza/web/viewutil"
+	"log"
+	"os"
 )
 
 func main() {
@@ -48,7 +46,9 @@ func main() {
 	backlinks.IndexBacklinks()
 	go backlinks.RunBacklinksConveyor()
 	user.InitUserDatabase()
-	history.Start()
+	if err := history.Start(); err != nil {
+		os.Exit(1)
+	}
 	history.InitGitRepo()
 	migration.MigrateRocketsMaybe()
 	migration.MigrateHeadingsMaybe()
@@ -65,6 +65,6 @@ func main() {
 
 	err := serveHTTP(web.Handler())
 	if err != nil {
-		syscall.Exit(1)
+		os.Exit(1)
 	}
 }