Valienteuh/Jellyfin-on-Android-through-Termux.md

## Jellyfin-on-Android-through-Termux.md

      
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              Jellyfin-on-Android-through-Termux.md
            
          
    Here’s the Full Guide to run JellyFin Server on Android through Termux:

Jellyfin on Termux + Debian (Android) – Beginner-Friendly Guide

This guide will help you install and run Jellyfin on an Android device using Termux + Proot-Debian.

It works for devices with different RAM configurations. We use jellyfin.sh as the startup script.
1. Install Termux & Proot-Distro


Install Termux from F-Droid.
Open Termux and update packages:

pkg update -y
pkg upgrade -y

Install essential packages:

pkg install proot-distro wget curl nano git -y

2. Install Debian


Install Debian:

proot-distro install debian

Login to Debian:

proot-distro login debian

All Debian-specific commands are run inside this Proot environment.


3. Update Debian & Install Dependencies

apt update && apt upgrade -y
apt install ffmpeg -y
Install Jellyfin:
apt install apt-transport-https ca-certificates gnupg -y
curl -fsSL https://repo.jellyfin.org/debian/jellyfin_team.gpg.key | gpg --dearmor | tee /usr/share/keyrings/jellyfin-archive-keyring.gpg > /dev/null
echo "deb [signed-by=/usr/share/keyrings/jellyfin-archive-keyring.gpg] https://repo.jellyfin.org/debian bullseye main" | tee /etc/apt/sources.list.d/jellyfin.list
apt update
apt install jellyfin -y
4. Create Jellyfin Startup Script

Do not Exit Debian! If you are in termux then get inside debian by pasting (proot-distro login debian) command again in Termux.
It should show something like root@localhost:~# 
Then create the script to Start JellyFin Server Everytime by pasting this:
nano jellyfin.sh

Paste the script according to your device’s RAM:

For 2 GB RAM

#!/bin/sh
# Jellyfin launcher for Termux/Proot Debian on Android (2GB RAM)

# ---- .NET memory tuning ----
export DOTNET_GC_SERVER=0
export DOTNET_GC_CONCURRENT=1
export DOTNET_GCHeapHardLimit=300000000   # ~300MB
export DOTNET_GCHeapHardLimitPercent=40  # ~40% of total RAM

# ---- Jellyfin paths ----
WEB_DIR="/usr/share/jellyfin/web"
CONFIG_DIR="$HOME/.config/jellyfin"
CACHE_DIR="$HOME/.cache/jellyfin"
DATA_DIR="$HOME/.local/share/jellyfin"
LOG_DIR="$HOME/.local/share/jellyfin/log"

# ---- Run Jellyfin ----
jellyfin \
  --webdir "$WEB_DIR" \
  -c "$CONFIG_DIR" \
  -C "$CACHE_DIR" \
  -d "$DATA_DIR" \
  -l "$LOG_DIR" \
  --nonetchange
For 4 GB RAM

#!/bin/sh
# Jellyfin launcher for Termux/Proot Debian on Android (4GB RAM)

# ---- .NET memory tuning ----
export DOTNET_GC_SERVER=0
export DOTNET_GC_CONCURRENT=1
export DOTNET_GCHeapHardLimit=800000000   # ~800MB
export DOTNET_GCHeapHardLimitPercent=50  # ~50% of total RAM

# ---- Jellyfin paths ----
WEB_DIR="/usr/share/jellyfin/web"
CONFIG_DIR="$HOME/.config/jellyfin"
CACHE_DIR="$HOME/.cache/jellyfin"
DATA_DIR="$HOME/.local/share/jellyfin"
LOG_DIR="$HOME/.local/share/jellyfin/log"

# ---- Run Jellyfin ----
jellyfin \
  --webdir "$WEB_DIR" \
  -c "$CONFIG_DIR" \
  -C "$CACHE_DIR" \
  -d "$DATA_DIR" \
  -l "$LOG_DIR" \
  --nonetchange
For 8 GB RAM

#!/bin/sh
# Jellyfin launcher for Termux/Proot Debian on Android (8GB RAM)

# ---- .NET memory tuning ----
export DOTNET_GC_SERVER=0
export DOTNET_GC_CONCURRENT=1
export DOTNET_GCHeapHardLimit=2000000000   # ~2GB
export DOTNET_GCHeapHardLimitPercent=60   # ~60% of total RAM

# ---- Jellyfin paths ----
WEB_DIR="/usr/share/jellyfin/web"
CONFIG_DIR="$HOME/.config/jellyfin"
CACHE_DIR="$HOME/.cache/jellyfin"
DATA_DIR="$HOME/.local/share/jellyfin"
LOG_DIR="$HOME/.local/share/jellyfin/log"

# ---- Run Jellyfin ----
jellyfin \
  --webdir "$WEB_DIR" \
  -c "$CONFIG_DIR" \
  -C "$CACHE_DIR" \
  -d "$DATA_DIR" \
  -l "$LOG_DIR" \
  --nonetchange


After pasting, save the file:

Press Ctrl + X to exit.
Nano will ask: “Save modified buffer?” → Press Y for yes.
It will ask for the file name → Press Enter to confirm jellyfin.sh.


Make the script executable:


chmod +x jellyfin.sh

✅ Now your jellyfin.sh script is ready to use.

5. Start Jellyfin

Every time you want to run Jellyfin Server:
# Step 1: Login to Debian
proot-distro login debian

# Step 2: Run Jellyfin 
./jellyfin.sh

6. Access Jellyfin

Open a Browser on your Android Device [i.e) Chrome]:
http://127.0.0.1:8096
or
http://localhost:8096


7. If you want to just type "jellyfin.sh" only instead of "./jellyfin.sh" everytime to Start Jellyfin (Optional)

For this, Simply Add your home folder to PATH of Debian

In Termux, open your .bashrc or .zshrc:

nano ~/.bashrc


Add this line at the end:

export PATH=$HOME:$PATH


Save (Ctrl+X → Y → Enter) and reload:

source ~/.bashrc

Now, Just Type this to Start Jellyfin Server after proot-distro login debian command ofcourse 🔽:
jellyfin.sh

will work, as long as you’re inside Debian (Proot).
8. Optional: Share with Friends


Jellyfin runs on HTTP (port 8096).
To allow remote access, use Zerotier or OpenTunnel.
Avoid ngrok on Termux; it’s unstable.


Notes


DOTNET_GCHeapHardLimit and DOTNET_GCHeapHardLimitPercent control how much RAM Jellyfin’s .NET runtime can use.
Adjust based on your device’s RAM. Using ~50% of total RAM is safe for most devices.
Always login to Debian before starting Jellyfin.
Use Browser for Best Experience instead of Client Apps.

Steps to Watch Together a Movie on JellyFin


Download a movie/video.
Start Server
Connect ZeroTier  (Both Host and Client needs to be on same ZeroTier Network)
Open JellyFin on Web Browser by this format : http://<Host's_ZeroTier_IP>:8096
(You can get this IP from https://my.zerotier.com/network)
Login
Create Room
Friends join your Room
Perfect Synced Video
(Call on discord etc for fun while watching movie at same time.)
Use Browser for Best Experience instead of Client Apps.
If you're on PC, Use HaramBlurr Extension to automatically blur Haram/NSFW Content.
If you're on Android, Use Mises Browser as it supports Chrome Extensions.
ENJOIII BUIIIIII

Credits :- Syed Wasiq Abbas   (Remember in your Prayers :) Allahuma Barik)

Honestly, ChatGPT Helped me alot in this mission.
Alhamdulillah(Praise be to Allah) for every facility & favour he has given to me.
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