diff --git a/cmd/yarr/main.go b/cmd/yarr/main.go
index 29e1e2b..ce01f2a 100644
--- a/cmd/yarr/main.go
+++ b/cmd/yarr/main.go
@@ -32,7 +32,7 @@ func opt(envVar, defaultValue string) string {
 
 func parseAuthfile(authfile io.Reader) (username, password string, err error) {
 	scanner := bufio.NewScanner(authfile)
-	for scanner.Scan() {
+	if scanner.Scan() {
 		line := scanner.Text()
 		parts := strings.SplitN(line, ":", 2)
 		if len(parts) != 2 {
@@ -40,7 +40,6 @@ func parseAuthfile(authfile io.Reader) (username, password string, err error) {
 		}
 		username = parts[0]
 		password = parts[1]
-		break
 	}
 	return username, password, nil
 }
diff --git a/src/assets/assets.go b/src/assets/assets.go
index d129b2c..fa337cd 100644
--- a/src/assets/assets.go
+++ b/src/assets/assets.go
@@ -5,7 +5,6 @@ import (
 	"html/template"
 	"io"
 	"io/fs"
-	"io/ioutil"
 	"log"
 	"os"
 )
@@ -37,7 +36,7 @@ func Template(path string) *template.Template {
 				}
 				defer svgfile.Close()
 
-				content, err := ioutil.ReadAll(svgfile)
+				content, err := io.ReadAll(svgfile)
 				// should never happen
 				if err != nil {
 					log.Fatal(err)
diff --git a/src/parser/feed.go b/src/parser/feed.go
index a735127..a318bd3 100644
--- a/src/parser/feed.go
+++ b/src/parser/feed.go
@@ -15,7 +15,7 @@ import (
 	"golang.org/x/net/html/charset"
 )
 
-var UnknownFormat = errors.New("unknown feed format")
+var ErrUnknownFormat = errors.New("unknown feed format")
 
 type feedProbe struct {
 	feedType string
@@ -89,7 +89,7 @@ func ParseWithEncoding(r io.Reader, fallbackEncoding string) (*Feed, error) {
 
 	out := sniff(string(lookup))
 	if out.feedType == "" {
-		return nil, UnknownFormat
+		return nil, ErrUnknownFormat
 	}
 
 	if out.encoding == "" && fallbackEncoding != "" {
diff --git a/src/parser/media.go b/src/parser/media.go
index df7db98..e82c2c6 100644
--- a/src/parser/media.go
+++ b/src/parser/media.go
@@ -34,23 +34,6 @@ type mediaDescription struct {
 	Text string `xml:",chardata"`
 }
 
-func (m *media) firstMediaThumbnail() string {
-	for _, c := range m.MediaContents {
-		for _, t := range c.MediaThumbnails {
-			return t.URL
-		}
-	}
-	for _, t := range m.MediaThumbnails {
-		return t.URL
-	}
-	for _, g := range m.MediaGroups {
-		for _, t := range g.MediaThumbnails {
-			return t.URL
-		}
-	}
-	return ""
-}
-
 func (m *media) firstMediaDescription() string {
 	for _, d := range m.MediaDescriptions {
 		return plain2html(d.Text)
diff --git a/src/server/auth/middleware.go b/src/server/auth/middleware.go
index 1755789..3362ad9 100644
--- a/src/server/auth/middleware.go
+++ b/src/server/auth/middleware.go
@@ -17,10 +17,6 @@ type Middleware struct {
 	DB       *storage.Storage
 }
 
-func unsafeMethod(method string) bool {
-	return method == "POST" || method == "PUT" || method == "DELETE"
-}
-
 func (m *Middleware) Handler(c *router.Context) {
 	for _, path := range m.Public {
 		if strings.HasPrefix(c.Req.URL.Path, m.BasePath+path) {
diff --git a/src/storage/folder.go b/src/storage/folder.go
index 40717c7..c06875a 100644
--- a/src/storage/folder.go
+++ b/src/storage/folder.go
@@ -55,7 +55,7 @@ func (s *Storage) ToggleFolderExpanded(folderId int64, isExpanded bool) bool {
 }
 
 func (s *Storage) ListFolders() []Folder {
-	result := make([]Folder, 0, 0)
+	result := make([]Folder, 0)
 	rows, err := s.db.Query(`
 		select id, title, is_expanded
 		from folders
diff --git a/src/storage/item.go b/src/storage/item.go
index ae34d38..960d873 100644
--- a/src/storage/item.go
+++ b/src/storage/item.go
@@ -251,7 +251,7 @@ func (s *Storage) CountItems(filter ItemFilter) int {
 
 func (s *Storage) ListItems(filter ItemFilter, limit int, newestFirst bool, withContent bool) []Item {
 	predicate, args := listQueryPredicate(filter, newestFirst)
-	result := make([]Item, 0, 0)
+	result := make([]Item, 0)
 
 	order := "date desc, id desc"
 	if !newestFirst {
diff --git a/src/worker/crawler.go b/src/worker/crawler.go
index ebefaa1..eb2f0a7 100644
--- a/src/worker/crawler.go
+++ b/src/worker/crawler.go
@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"mime"
 	"net/http"
 	"net/url"
@@ -69,10 +68,10 @@ func DiscoverFeed(candidateUrl string) (*DiscoverResult, error) {
 	}
 	switch {
 	case len(sources) == 0:
-		return nil, errors.New("No feeds found at the given url")
+		return nil, errors.New("no feeds found at the given url")
 	case len(sources) == 1:
 		if sources[0].Url == candidateUrl {
-			return nil, errors.New("Recursion!")
+			return nil, errors.New("recursion")
 		}
 		return DiscoverFeed(sources[0].Url)
 	}
@@ -103,7 +102,7 @@ func findFavicon(siteUrl, feedUrl string) (*[]byte, error) {
 	if siteUrl != "" {
 		if res, err := client.get(siteUrl); err == nil {
 			defer res.Body.Close()
-			if body, err := ioutil.ReadAll(res.Body); err == nil {
+			if body, err := io.ReadAll(res.Body); err == nil {
 				urls = append(urls, scraper.FindIcons(string(body), siteUrl)...)
 				if c := favicon(siteUrl); c != "" {
 					urls = append(urls, c)
@@ -126,7 +125,7 @@ func findFavicon(siteUrl, feedUrl string) (*[]byte, error) {
 			continue
 		}
 
-		content, err := ioutil.ReadAll(res.Body)
+		content, err := io.ReadAll(res.Body)
 		if err != nil {
 			continue
 		}