OpenTutor - a service for compiling user dictionaries and learning foreign words

A simple open-source kotlin-ktor web-application for compiling custom dictionaries and learning foreign words through flashcards.

It is available via https://storage.yandexcloud.net/opentutor/index.html & https://opentutor.zapto.org ; as an apk android file (see releases) and as a standalone docker image.

Edit dictionaries:

Run flashcards:

Summary:

It is supposed to be an extended analogue of the desktop program Lingvo Tutor, which is a component of well-known ABBYY Lingvo.

For docker-image, the userdata with built-in dictionaries is stored in the /userdata directory (inside container), this allows using docker volumes. By default, espeak-ng is used as Text-To-Speech service (it is pre-installed inside sszuev/ubuntu-jammy-openjdk-17-espeak-ng image). To use voicerss TTS service (better quality) get API-key and specify it as an environment variable VOICERSS-KEY, e.g. docker run ... -e VOICERSS-KEY=${your-key} ...

Requirements (for dev):

• java-17+
• gradle-7+
• docker

Build and run:

• standalone version $ docker pull sszuev/open-tutor-standalone:latest && docker run --name open-tutor-standalone-app -p 8080:8080 sszuev/open-tutor-standalone:latest
• prod version tutor-deploy/README
• for additional info see app-ktor/README

License:

• Apache License Version 2.0