https://vitto4.github.io/hifumi/
A flashcards companion app tailored for Minna no Nihongo Shokyū I & II textbooks.
https://vitto4.github.io/hifumi/
android flashcards flutter flutter-apps japanese-language japanese-study language-learning minna-no-nihongo webapp
Last synced: about 2 months ago
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A flashcards companion app tailored for Minna no Nihongo Shokyū I & II textbooks.
- Host: GitHub
- URL: https://vitto4.github.io/hifumi/
- Owner: vitto4
- License: mpl-2.0
- Created: 2025-01-12T12:24:50.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2026-03-28T14:43:04.000Z (3 months ago)
- Last Synced: 2026-04-23T13:29:27.444Z (about 2 months ago)
- Topics: android, flashcards, flutter, flutter-apps, japanese-language, japanese-study, language-learning, minna-no-nihongo, webapp
- Language: Dart
- Homepage: https://vitto4.github.io/hifumi/
- Size: 21.7 MB
- Stars: 13
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-japanese - hifumi - A flashcards companion app tailored for Minna no Nihongo Shokyū I & II textbooks ([sources](https://github.com/vitto4/hifumi)). :iphone: :computer: (Vocabulary / Other textbooks)
README
A flashcards companion app tailored for Minna no Nihongo Shokyū Ⅰ & Ⅱ textbooks.
❄︎
## 🧭 Table of contents
1. [Overview](#-overview)
2. [Installation](#-installation)
3. [Development](#️-development)
4. [Notes](#-notes)
5. [Contributing](#-contributing)
## ☁ Overview
Got a vocab test looming in your Japanese class ? Feeling overwhelmed by the mountain of words in your `Minna no Nihongo` lessons and not sure where to start ?
Worry no more, _there's an app for that_ !
This readme mostly discusses technical stuff 🧙♂️
Should you simply wish to give the app a whirl, your journey awaits beneath –
⥼ Web version ⥽ ![]()
⥼ Android version ⥽
Note – You may also use the web version on Android.
**hifumi** was meant to be a replacement for [*Minna no Flashcards*](https://play.google.com/store/apps/details?id=com.factory201.minnanoflashcards "now pulled from the Play Store"), reworked with the whole **fifty lessons** of the [`Minna no Nihongo Shokyū`](https://www.3anet.co.jp/np/en/list.html?af=1&g=7-12-33&s=1 "みんなの日本語 初級 Ⅰ & Ⅱ") books.
And well, that is what it ended up being, but an overengineered one for sure !
It also packs additional quality of life features, such as being able to create custom lists of words to study (called _decks_), opening [Jisho.org](https://jisho.org) with the click of a button, and more !
## 📦 Installation
#### Web
The [web app](https://vitto4.github.io/hifumi) requires no particular installation.
A prebuilt version is also offered in the [releases](https://github.com/vitto4/hifumi/releases). It can be used locally by running something like `python3 -m http.server` in the root of the folder.
#### Android
1. Head over to the [releases](https://github.com/vitto4/hifumi/releases) page.
2. Grab the right `apk` for you phone's CPU architecture. If unsure, get the `arm64-v8a` version, this corresponds to what most smartphones run on nowadays.
3. Install it like you would with any other `apk` file. Opening it from your device's file manager usually does the trick.
#### iOS & Others
At the moment, only precompiled binaries for _Android_ and _Web_ are offered. Therefore, the **Web** version should be used on all other platforms. If you'd like to see a platform added, you're welcome to open an issue :)
## 🛠️ Development
Interested in modifying the source or building the app yourself ?
You will need a working copy of the **Dart SDK** and **Flutter SDK**, with `Web` and `Android` development set up. If you're new to this don't worry, it is pretty straightforward to set up, check out [Install | Flutter](https://docs.flutter.dev/get-started/install).
1. Clone the repository : `git clone --recurse-submodules https://github.com/vitto4/hifumi.git && cd hifumi`
2. Get dependencies : `flutter pub get`
3. You are now ready to `flutter run` 🎉
If you end up modifying an icon, you may also need to `flutter pub run flutter_launcher_icons`.
#### 🏗️ Build & Release
For the detailed build process, take a look at the build workflows in [`.github/build-*.yml`](./.github/workflows/).
**tl;dr** your usual flutter business, except a few [things](./lib/entities/app_info.dart#L18-L20) are overwritten here and there.
As for the **Pages**, it is more of a rolling release and may be deployed whenever from the main branch.
#### 📅 Wishlist
A couple of things I may get to someday
- [ ] For the `Web` release, compile to Wasm once compatibility spans all browsers (see [Wasm | Flutter](https://docs.flutter.dev/platform-integration/web/wasm#learn-more-about-browser-compatibility)).
- [ ] Make use of [macros](https://dart.dev/language/macros) to write the _version number_ and _commit hash_ to `app_info.dart` at compile time, instead of relying on external tools in the build workflows.
- [ ] Include a dark theme.
- [ ] Look into adding iOS as a build target (would need sideloading support first though).
#### 🧱 Structure
I might have got a little carried away when deciding on filenames and folders, so here's a much-needed file structure overview !
The result should resemble a somewhat frankensteined [folder by feature](https://www.hungrimind.com/articles/folder-structure-for-large-projects#folder-by-feature) arrangement.
Show structure
```
.
lib/
├── abstractions/ # Mix of abstractions on concepts and building blocks for the rest of the code, as well as data classes.
│ # Abstractions on APIs/packages are instead located in `services/`.
│
├── pages/ # Pages of the app and related widgets.
│
├── services/ # Utility services for the app, including interfacing with the dataset, data storage, layout management, and more.
│
├── widgets/ # Shared widgets.
│ │
│ ├── archipelago/ # Home for island-style widgets, including containers, buttons, segmented selectors, etc.
│ │
│ ├── overlays/
│ │
│ ├── seasoning/ # Catch-all for miscellaneous widgets sprinkled throughout the app.
│ │ # Their purpose is purely to make the app look better, hence `seasoning`s.
│ │
│ └── *.dart # Various widgets that didn't fit in categories described above.
│
└── main.dart
```
## 🔖 Notes
- I have come to the realisation that UI/UX design is very much not easy (ᴗ.ᴗ). Thus, I've « borrowed » the design language from a suspiciously intimidating owl.
> Dear Duo,
> Please don't come for me, I did my lesson today, and if the borrowing isn't fine I'll happily comply !
> Thankies :3
(fancy reaching out ? claim your [Free OSINT Technique™](https://cheatsheet.haax.fr/open-source-intelligence-osint/platforms-hunting/github/#finding-user-e-mail))
- The *dataset* from which all words are sourced lives on GitHub as a separate project : [`MinnaNoDS`](https://github.com/vitto4/MinnaNoDS).
- Some of the files are prefixed with `@`.
I wanted them grouped together. It may not be pretty, but it works c:
Looking back, I believe these could have been categorised as *models* or *data classes*.
- To save on asset size, fonts have been subsetted.
- Noto Serif Japanese to `あ`
- New Tegomin to `あ字言葉準備中.`
- Noto Sans Japanese to whatever [`noto_sans_JP`](./fonts/tools/fonts_subsetting.py#L66) ends up being.
See also [`fonts_subsetting.py`](./fonts/tools/fonts_subsetting.py) and [`fonts-subsetting.yml`](./.github/workflows/fonts-subsetting.yml).
- Among the widgets are some that are just asking to be reused standalone in another app ! This includes [`swipeable.dart`](./lib/widgets/swipeable.dart) and [`island_container.dart`](./lib/widgets/archipelago/island_container.dart). If these sound like they could be useful for your project, be sure to take a look !
## 🧩 Contributing
You're very welcome to pitch in !
That being said, as I'm still pretty new to everything flutter and app development, the code can be a bit all over the place ; so proceed at your own risk (:
Also I probably won't devote much time to this project in the near future, so please bear with me if I'm slow on the reply ^-^