diff --git a/frontend/src/components/DownloadDialog.tsx b/frontend/src/components/DownloadDialog.tsx
index 888a38d..106f37a 100644
--- a/frontend/src/components/DownloadDialog.tsx
+++ b/frontend/src/components/DownloadDialog.tsx
@@ -40,7 +40,7 @@ import { useI18n } from '../hooks/useI18n'
 import { useRPC } from '../hooks/useRPC'
 import { CliArguments } from '../lib/argsParser'
 import type { DLMetadata } from '../types'
-import { isValidURL, toFormatArgs } from '../utils'
+import { toFormatArgs } from '../utils'
 import ExtraDownloadOptions from './ExtraDownloadOptions'
 
 const Transition = forwardRef(function Transition(
@@ -166,7 +166,6 @@ const DownloadDialog: FC<Props> = ({ open, onClose, onDownloadStart }) => {
 
     file
       .split('\n')
-      .filter(u => isValidURL(u))
       .forEach(u => sendUrl(u))
   }
 
diff --git a/frontend/src/utils.ts b/frontend/src/utils.ts
index 2afc0df..dff658d 100644
--- a/frontend/src/utils.ts
+++ b/frontend/src/utils.ts
@@ -20,17 +20,10 @@ export function validateDomain(url: string): boolean {
   return urlRegex.test(url) || name === 'localhost' && slugRegex.test(slug)
 }
 
-export function isValidURL(url: string): boolean {
-  let urlRegex = /https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()!@:%_\+.~#?&\/\/=]*)/
-  return urlRegex.test(url)
-}
-
-export function ellipsis(str: string, lim: number): string {
-  if (str) {
-    return str.length > lim ? `${str.substring(0, lim)}...` : str
-  }
-  return ''
-}
+export const ellipsis = (str: string, lim: number) =>
+  str.length > lim
+    ? `${str.substring(0, lim)}...`
+    : str
 
 export function toFormatArgs(codes: string[]): string {
   if (codes.length > 1) {
diff --git a/server/internal/common.go b/server/internal/common.go
index 2d0b91e..e019efe 100644
--- a/server/internal/common.go
+++ b/server/internal/common.go
@@ -2,6 +2,7 @@ package internal
 
 import "time"
 
+// Used to unmarshall yt-dlp progress
 type ProgressTemplate struct {
 	Percentage string  `json:"percentage"`
 	Speed      float32 `json:"speed"`
@@ -9,6 +10,7 @@ type ProgressTemplate struct {
 	Eta        float32 `json:"eta"`
 }
 
+// Defines where and how the download needs to be saved
 type DownloadOutput struct {
 	Path          string
 	Filename      string
@@ -92,6 +94,7 @@ type SetCookiesRequest struct {
 	Cookies string `json:"cookies"`
 }
 
+// represents a user defined collection of yt-dlp arguments
 type CustomTemplate struct {
 	Id      string `json:"id"`
 	Name    string `json:"name"`
diff --git a/server/internal/process.go b/server/internal/process.go
index 1abbc7a..54b65db 100644
--- a/server/internal/process.go
+++ b/server/internal/process.go
@@ -168,7 +168,7 @@ func (p *Process) Start() {
 			p.Logger.Info("progress",
 				slog.String("id", p.getShortId()),
 				slog.String("url", p.Url),
-				slog.String("percentege", progress.Percentage),
+				slog.String("percentage", progress.Percentage),
 			)
 		})
 	}()
diff --git a/server/logging/file_logger.go b/server/logging/file_logger.go
index b99174e..e83a717 100644
--- a/server/logging/file_logger.go
+++ b/server/logging/file_logger.go
@@ -8,6 +8,15 @@ import (
 	"time"
 )
 
+/*
+	File base logger with log-rotate capabilities.
+	The rotate process must be initiated from an external goroutine.
+
+	After rotation the previous logs file are compressed with gzip algorithm.
+
+	The rotated log follows this naming: [filename].UTC time.gz
+*/
+
 // implements io.Writer interface
 type LogRotateWriter struct {
 	mu       sync.Mutex
diff --git a/server/logging/observable_logger.go b/server/logging/observable_logger.go
index 95fd794..4b02d03 100644
--- a/server/logging/observable_logger.go
+++ b/server/logging/observable_logger.go
@@ -6,6 +6,17 @@ import (
 	"github.com/reactivex/rxgo/v2"
 )
 
+/*
+	Logger implementation using the observable pattern.
+	Implements io.Writer interface.
+
+	The observable is an event source which drops everythigng unless there's
+	a subscriber connected.
+
+	The observer implementatios are a http ServerSentEvents handler and a
+	websocket one in handler.go
+*/
+
 var (
 	logsChan       = make(chan rxgo.Item, 100)
 	logsObservable = rxgo.
diff --git a/server/sys/fs.go b/server/sys/fs.go
index 88fda33..98ed048 100644
--- a/server/sys/fs.go
+++ b/server/sys/fs.go
@@ -26,10 +26,12 @@ func DirectoryTree() (*[]string, error) {
 		children []Node
 	}
 
-	rootPath := config.Instance().DownloadPath
+	var (
+		rootPath = config.Instance().DownloadPath
 
-	stack := internal.NewStack[Node]()
-	flattened := make([]string, 0)
+		stack     = internal.NewStack[Node]()
+		flattened = make([]string, 0)
+	)
 
 	stack.Push(Node{path: rootPath})
 
@@ -37,14 +39,16 @@ func DirectoryTree() (*[]string, error) {
 
 	for stack.IsNotEmpty() {
 		current := stack.Pop().Value
+
 		children, err := os.ReadDir(current.path)
 		if err != nil {
 			return nil, err
 		}
 		for _, entry := range children {
-			childPath := filepath.Join(current.path, entry.Name())
-			childNode := Node{path: childPath}
-
+			var (
+				childPath = filepath.Join(current.path, entry.Name())
+				childNode = Node{path: childPath}
+			)
 			if entry.IsDir() {
 				current.children = append(current.children, childNode)
 				stack.Push(childNode)