Code refactoring and bump deps

Dockerfile

@@ -1,7 +1,4 @@
-# Multi stage build Dockerfile
-
-# There's no point in using the edge (development branch of alpine)
-FROM alpine:3.17 AS build
+FROM golang:1.20-alpine AS build
 # folder structure
 WORKDIR /usr/src/yt-dlp-webui
 # install core dependencies
@@ -15,7 +12,7 @@ RUN npm install
 RUN npm run build
 # build backend + incubator
 WORKDIR /usr/src/yt-dlp-webui
-RUN go build -o yt-dlp-webui
+RUN CGO_ENABLED=0 GOOS=linux go build -o yt-dlp-webui
 
 # but here yes :)
 FROM alpine:edge
@@ -28,8 +25,7 @@ WORKDIR /app
 RUN apk update && \
     apk add psmisc ffmpeg yt-dlp
 
-COPY --from=build /usr/src/yt-dlp-webui /app
-RUN chmod +x /app/yt-dlp-webui
+COPY --from=build /usr/src/yt-dlp-webui/yt-dlp-webui /app
 
 EXPOSE 3033
 CMD [ "./yt-dlp-webui" , "--out", "/downloads" ]