diff --git a/cmd/dwelling-upload/main.go b/cmd/dwelling-upload/main.go
index fb1f7bd..239417a 100644
--- a/cmd/dwelling-upload/main.go
+++ b/cmd/dwelling-upload/main.go
@@ -19,7 +19,7 @@ import (
 var configPath *string = flag.String("conf", "config.yaml", "path to configuration file")
 var listenAddress *string = flag.String("listen", "/var/run/dwelling-upload/sock", "listen address (ip:port|unix_path)")
 var uploadDir *string = flag.String("upload-dir", "/srv/uploads", "path to a directory where uploaded files are stored")
-var keepFileForHours *int64 = flag.Int64("keep-for", 36, "keep files for this much hours")
+var keepFileForHours *int = flag.Int("keep-for", 36, "keep files for this much hours")
 var limitStorage *int64 = flag.Int64("storage", 102400, "storage size in MiB for uploads")
 var limitFileSize *int64 = flag.Int64("file-size", 128, "max. size in MiB for uploaded files")
 var showVersion *bool = flag.Bool("v", false, "show version")
@@ -54,6 +54,11 @@ func main() {
 		}
 	}
 
+	hashSalt, err := os.ReadFile(path.Join(os.Getenv("CREDENTIALS_DIRECTORY"), "salt"))
+	if err != nil {
+		log.Fatalln("failed to read hash salt file:", err)
+	}
+
 	logFilePath := path.Join(os.Getenv("LOGS_DIRECTORY"), "file.log")
 	logFile, err := logging.New(logFilePath)
 	if err != nil {
@@ -79,7 +84,8 @@ func main() {
 
 	watcha.WatchForMask(uploadDirNotify, watcher.CrDelMask)
 
-	hand := http.NewUploadHandlers(config, logFile, &uploadDirSize)
+	hand := http.NewUploadHandlers(logFile, *uploadDir, &uploadDirSize, string(hashSalt),
+		*keepFileForHours, *limitStorage, *limitFileSize)
 	srv := http.NewHttpServer()
 
 	srv.SetNotFoundHandler(http.NotFound)
diff --git a/internal/http/handlers.go b/internal/http/handlers.go
index d1a036b..fa8570c 100644
--- a/internal/http/handlers.go
+++ b/internal/http/handlers.go
@@ -2,7 +2,6 @@ package http
 
 import (
 	"crypto/sha256"
-	"dwelling-upload/internal/configuration"
 	"dwelling-upload/pkg/logging"
 	"dwelling-upload/pkg/utils"
 	"dwelling-upload/web"
@@ -20,17 +19,28 @@ import (
 )
 
 type UploadHandlers struct {
-	conf    *configuration.Configuration
 	logFile *logging.Logger
 
+	uploadDir     string
 	uploadDirSize *int64
+
+	hashSalt string
+
+	keepForHours  int
+	limitStorage  int64
+	limitFileSize int64
 }
 
-func NewUploadHandlers(conf *configuration.Configuration, lFile *logging.Logger, uploadDirSize *int64) *UploadHandlers {
+func NewUploadHandlers(lFile *logging.Logger, uploadDir string, uploadDirSize *int64,
+	hashSalt string, keepForHours int, limStorage, limFileSz int64) *UploadHandlers {
 	return &UploadHandlers{
-		conf:          conf,
 		logFile:       lFile,
-		uploadDirSize: uploadDirSize}
+		uploadDir:     uploadDir,
+		uploadDirSize: uploadDirSize,
+		hashSalt:      hashSalt,
+		keepForHours:  keepForHours,
+		limitStorage:  limStorage,
+		limitFileSize: limFileSz}
 }
 
 func (*UploadHandlers) AssetsFS() http.FileSystem {
@@ -38,20 +48,20 @@ func (*UploadHandlers) AssetsFS() http.FileSystem {
 }
 
 func (h *UploadHandlers) Index(w http.ResponseWriter, r *http.Request) {
-	var storCapacity int64 = h.conf.Uploads.Limits.Storage << 20
-	var fMaxSize int64 = h.conf.Uploads.Limits.FileSize << 20
+	var storCapacity int64 = h.limitStorage << 20
+	var fMaxSize int64 = h.limitFileSize << 20
 
 	_, _, capStr := utils.ConvertFileSize(storCapacity)
 	_, _, usedStr := utils.ConvertFileSize(*h.uploadDirSize)
 	_, _, availStr := utils.ConvertFileSize(storCapacity - *h.uploadDirSize)
 	_, _, fMaxSzStr := utils.ConvertFileSize(fMaxSize)
 
-	web.Index(utils.MainSite(r.Host), storCapacity, *h.uploadDirSize, h.conf.Uploads.Limits.KeepForHours, fMaxSzStr, usedStr, capStr, availStr, w)
+	web.Index(utils.MainSite(r.Host), storCapacity, *h.uploadDirSize, h.keepForHours, fMaxSzStr, usedStr, capStr, availStr, w)
 }
 
 func (h *UploadHandlers) Upload(w http.ResponseWriter, r *http.Request) {
-	var fMaxSizeBytes int64 = h.conf.Uploads.Limits.FileSize << 20
-	var storCapacity int64 = h.conf.Uploads.Limits.Storage << 20
+	var fMaxSizeBytes int64 = h.limitFileSize << 20
+	var storCapacity int64 = h.limitStorage << 20
 
 	r.Body = http.MaxBytesReader(w, r.Body, fMaxSizeBytes)
 
@@ -89,12 +99,12 @@ func (h *UploadHandlers) Upload(w http.ResponseWriter, r *http.Request) {
 	}
 
 	fHash := hex.EncodeToString(s256.Sum(nil))
-	s256.Write([]byte(h.conf.HashSalt))
+	s256.Write([]byte(h.hashSalt))
 	fSaltedHash := base64.RawURLEncoding.EncodeToString(s256.Sum(nil))
 
 	f.Seek(0, io.SeekStart)
 
-	fPath := path.Join(h.conf.Uploads.Directory, fSaltedHash)
+	fPath := path.Join(h.uploadDir, fSaltedHash)
 
 	_, err = os.Stat(fPath)
 	if os.IsNotExist(err) {
@@ -143,13 +153,13 @@ func (h *UploadHandlers) Upload(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	web.Uploaded(utils.MainSite(r.Host), site, downloadURLParsed.String(), h.conf.Uploads.Limits.KeepForHours, w)
+	web.Uploaded(utils.MainSite(r.Host), site, downloadURLParsed.String(), h.keepForHours, w)
 }
 
 func (h *UploadHandlers) Download(w http.ResponseWriter, r *http.Request) {
 	saltedHash := GetURLParam(r, "hash")
 
-	path := path.Join(h.conf.Uploads.Directory, saltedHash)
+	path := path.Join(h.uploadDir, saltedHash)
 
 	stat, err := os.Stat(path)
 	if os.IsNotExist(err) {
@@ -185,7 +195,7 @@ func (h *UploadHandlers) Delete(w http.ResponseWriter, r *http.Request) {
 		saltedHash = r.FormValue("hash")
 	}
 
-	path := path.Join(h.conf.Uploads.Directory, saltedHash)
+	path := path.Join(h.uploadDir, saltedHash)
 
 	_, err := os.Stat(path)
 	if os.IsNotExist(err) {