---
title: Install Halkyon on Linux | Snap Store
description: Get the latest version of Halkyon for Linux - Learn with flashcards,
  studied offline and synced between your devices
url: https://snapcraft.io/halkyon
---

# Halkyon

[Halkyon Days (halkyon)](https://snapcraft.io/publisher/halkyon "View all snaps from Halkyon Days (halkyon)")

* [Halkyon Days (halkyon)](https://snapcraft.io/publisher/halkyon "View all snaps from Halkyon Days (halkyon)")

latest/edge 0.27.0

Install latest/edge of Halkyon

---

**Install using the command line**

```
sudo snap install halkyon --edge
```

Don't have snapd? [Get set up for snaps](https://snapcraft.io/docs/installing-snapd).

Halkyon is only available on the unstable edge channel. It could break and change often.

---

### Package name

* halkyon

---

### License

* AGPL-3.0-or-later

---

### Last updated

* 13 November 2026 - latest/edge

---

##### Report a Snap Store violation

* [Report this Snap](https://snapcraft.io/halkyon#report-snap-modal)

---

* [Description](https://snapcraft.io/halkyon#tab-description)
* [Security](https://snapcraft.io/halkyon#tab-security)

#### Learn with flashcards, studied offline and synced between your devices

Halkyon is a spaced-repetition app for your own material: studysets of
flashcards, notes, learning paths and PDFs, reviewed on an FSRS schedule. Every
studyset is made by its learners: build yours for any subject, or copy one that
someone published. It works offline and syncs between your devices.

Learn from what you watch: play films and shows from your Jellyfin server,
and every subtitle line is split into dictionary words, with readings above
and the translation below. Tap a word, and it is a flashcard.

Dictionaries for Japanese, Chinese, Korean, German, Greek and English; kanji,
hanzi and Hangul written by hand, each stroke checked; exam plans for the
JLPT, HSK and Korean levels, with a daily pace to your exam's date; and
studysets published to Explore and copied, later releases coming in as
merges that keep your own edits.

You sign in with SimpleLogin, by Proton, or with an email address, a
password and an authenticator app. It connects to halkyon.li, the project's
instance, or to any other: everything an instance needs is in the repository,
to run your own. The app is AGPL-3.0 and the server SSPL-1.0, so all of its
code is public.

Questions and reports: support@halkyon.app

---

## Install Halkyon on your Linux distribution

Choose your Linux distribution to get detailed installation instructions. If yours is not shown, get more details on the [installing snapd documentation](https://snapcraft.io/docs/installing-snapd).

[### Arch Linux](https://snapcraft.io/install/halkyon/arch)

[### CentOS](https://snapcraft.io/install/halkyon/centos)

[### Debian](https://snapcraft.io/install/halkyon/debian)

[### elementary OS](https://snapcraft.io/install/halkyon/elementary)

[### Fedora](https://snapcraft.io/install/halkyon/fedora)

[### KDE Neon](https://snapcraft.io/install/halkyon/kde-neon)

[### Kubuntu](https://snapcraft.io/install/halkyon/kubuntu)

[### Manjaro](https://snapcraft.io/install/halkyon/manjaro)

[### Pop!\_OS](https://snapcraft.io/install/halkyon/pop)

[### openSUSE](https://snapcraft.io/install/halkyon/opensuse)

[### Red Hat Enterprise Linux](https://snapcraft.io/install/halkyon/rhel)

[### Ubuntu](https://snapcraft.io/install/halkyon/ubuntu)