LetoReader is a versatile speed reader designed to enhance your reading efficiency. It supports high-speed reading for skimming or consuming easy texts at e.g. 400-1000 words per minute. However, it can also be used at lower speeds for better comprehension while still benefiting from Rapid Serial Visual Presentation (RSVP). In this step by step guide I will show you how to install LetoReader on your UGREEN NAS using Docker and Portainer.

💡Note: This guide works perfectly with the latest LetoReader Main Tag release.

💡Note: Check out my guide on how to Install LetoReader on Your Synology NAS.

• STEP 1

Please Support My work by Making a Donation.

• STEP 2

Install Portainer using my step by step guide. If you already have Portainer installed on your UGREEN NAS, skip this STEP. Attention: Make sure you have installed the latest Portainer version.

• STEP 3

Log into Portainer using your username and password. On the left sidebar in Portainer, click on Home then Live connect. Follow the instructions in the image below.

On the left sidebar in Portainer, click on Stacks then + Add stack. Follow the instructions in the image below.

• STEP 4

In the Name field type in letoreader. Follow the instructions in the image below.

Note: Copy Paste the code below in the Portainer Stacks Web editor.

services:
  letoreader:
    image: davidewiest/reader:latest
    container_name: LetoReader
    security_opt:
      - no-new-privileges:true
    healthcheck:
      test: timeout 10s bash -c ':> /dev/tcp/127.0.0.1/8080' || exit 1
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 90s  
    ports:
      - 5223:8080
    environment:
       ASPNETCORE_ENVIRONMENT: Production
    restart: on-failure:5

• STEP 5

Scroll down on the page until you see a button named Deploy the stack. Click on it. Follow the instructions in the image below. The installation process can take up to a few minutes. It will depend on your Internet speed connection.

• STEP 6

If everything goes right, you will see the following message at the top right of your screen: “Success Stack successfully deployed“.

• STEP 7

🟢Please Support My work by Making a Donation. Almost 99,9% of the people that install something using my guides forget to support my work, or just ignore STEP 1. I’ve been very honest about this aspect of my work since the beginning: I don’t run any ADS, I don’t require subscriptions, paid or otherwise, I don’t collect IPs, emails, and I don’t have any referral links from Amazon or other merchants. I also don’t have any POP-UPs or COOKIES. I have repeatedly been told over the years how much I have contributed to the community. It’s something I love doing and have been honest about my passion since the beginning. But I also Need The Community to Support me Back to be able to continue doing this work.

• STEP 8

The installation process can take up to a few seconds/minutes. It will depend on your Internet speed connection. Now open your browser and type in http://ugreen-ip-address:5223 Upload your own documents and set up your favorite settings by clicking the settings icon. Follow the instructions in the image below.

• STEP 9

Upload your own files. Follow the instructions in the image below.

• STEP 10

Adjust your settings. Follow the instructions in the image below.

Enjoy LetoReader!

🆘TROUBLESHOOTING

Note: If you want to run the LetoReader container over HTTPS, check out How to Run Docker Containers Over HTTPS on Your UGREEN NAS.
🆙Note/Update/Container: How to Update Your Docker Containers on UGREEN NAS Using Portainer.
🐳Note: How to Create Docker Shortcuts on Desktop.
🆕Note: How to Update Portainer to the latest version.

This post was updated on Friday / October 24th, 2025 at 11:46 PM