added vnc

wiki/anki.md

@@ -0,0 +1,55 @@
+# Anki
+
+[Anki](https://apps.ankiweb.net/) is a flashcard program for learning.
+
+## Setup
+
+Anki can be split up into client and server software.
+The server software is fully optional, handles the syncing between multiple clients and can also be
+done via the official Anki website.
+
+### Setup Client
+
+The default Anki client is made for computer systems and can be installed from source as described
+[on GitHub](https://github.com/ankitects/anki).
+Alternatively some [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package the Anki client in the `anki` package.
+
+Adding to the Computer clients there are various possible clients for other platforms.
+
+- [AnkiDroid](https://f-droid.org/de/packages/com.ichi2.anki/) is a client for
+  [Android](/wiki/android.md).
+
+### Setup Server
+
+The syncserver can be installed to handle the syncing of data in a self-hosted way.
+It is described [on GitHub](https://github.com/ankitects/anki/tree/main/docs/syncserver) and can be
+setup via [Docker](/wiki/docker.md) using
+[the official manually build container](/wiki/docker/ankitects_-_syncserver.md).
+
+## Usage
+
+This section addresses the usage of Anki.
+
+### Add Backwards Cards
+
+When setting up a new deck and sometimes when importing a deck only cards for one-way learning are
+added.
+This guide assumes the default Anki client is used.
+To change this select `Browse` and then navigate to the `Note Type` the deck to add backwards cards
+uses.
+Right click the note type and select `Cards`.
+Afterwards the cards for backwards learning can be added by `Options` and `Add Card Types...`.
+You can confirm the fields have been setup correctly by clicking through the card types and
+verifying it.
+
+### Make New Cards Gather Order Random
+
+This section is based on a
+[Anki forum entry by NameLessGO](https://forums.ankiweb.net/t/what-are-the-best-settings-here-to-review-cards-in-random-order/27112).
+By default new cards are gathered in order and then also shown in order.
+Most of the time it is useful for them to be gathered in order as it conserves the learning units
+for example.
+To change this navigate to the `Options` of a deck and then change `New card sort order` to
+`Random` to randomize them before showing them without gathering them randomly.
+To change this the `New card gather order` can also be set to `Random notes` or `Random cards`.

wiki/audio.md

@@ -78,13 +78,15 @@ If you want to keep your system clean of much data, you can use this kind of
 setup.
 There are differences depending on your preffered software interface.
 
-### Digital Audio Workstations
+### Digital Audio Workstations and Recording Software
 
 Digital Audio Workstations - short DAWs - is an application that can be used to record, edit or
 produce audio files.
 
 - [LMMS](https://lmms.io/) is a free and cross-platform DAW that is highly compatible with
   [Linux-based systems](/wiki/linux.md).
+- [Audacity](https://www.audacityteam.org/) is an open source and cross-platform software to record
+  and edit audio.
 
 ### Software for Music/Podcasts/Audiobooks
 

wiki/docker/ankitects_-_syncserver.md

@@ -0,0 +1,58 @@
+# ankitects - anki
+
+This is a [Docker](/wiki/docker.md) container for a [Anki syncserver](/wiki/anki.md#setup-server).
+The official container is part of the
+[Anki GitHub repository](https://github.com/ankitects/anki/tree/main/docs/syncserver) and has to be
+build manually.
+
+The syncserver can be installed to handle the syncing of data in a self-hosted way.
+It is described [on GitHub](https://github.com/ankitects/anki/tree/main/docs/syncserver) and can be
+setup via [Docker](/wiki/docker.md).
+
+## Set-up
+
+Due to the syncserver having to be set up manually first navigate to the
+[Anki syncserver GitHub subpage](/wiki/anki.md#setup-server).
+From there download the `Dockerfile` and the `entrypoints.sh`.
+Then create the file `rebuild.sh`.
+Change the settings according to your needs and run `./rebuild.sh` afterwards.
+Especially set the `<version>` (for example `24.11`) aswell as the `<user>` and `<password>`.
+
+## Environment-variables
+
+Set the following variables with the -e tag.
+
+| Name           | Usage                                                    | Default |
+| -------------- | -------------------------------------------------------- | ------- |
+| `SYNC_USER1`   | contains the `<user>` and `<password>` of the first user |         |
+
+## Ports
+
+Set the following ports in the `ports:` section.
+
+| Container Port | Recommended outside port | Protocol  | Description   |
+| -------------- | ------------------------ | --------- | ------------- |
+| `27701`        | `8080`                   | TCP       | Default port  |
+
+## Volumes
+
+Set the following volumes with the -v tag.
+
+| Outside mount/volume name | Container mount | Description   |
+| ------------------------- | --------------- | ------------- |
+| `akni-sync-server-data`   | `/anki-data`    | Data storage  |
+
+## rebuild.sh
+
+```sh
+#!/bin/sh
+docker stop anki-sync-server
+docker rm anki-sync-server
+docker build -f ./Dockerfile --no-cache --build-arg ANKI_VERSION=<version> -t anki-sync-server .
+docker run -d \
+    -e "SYNC_USER1=<user>:<password>" \
+    -p 27701:8080 \
+    --mount type=volume,src=anki-sync-server-data,dst=/anki_data \
+    --name anki-sync-server \
+    anki-sync-server
+```

wiki/linux/disk-management.md

@@ -1,6 +1,6 @@
 # Disk Management
 
-This article focusses on non-LVM and non-MDADM storage.
+This article focusses on non-LVM and non-MDADM storage including swap.
 For [LVM](lvm.md), [NTFS](./ntfs.md), [Samba](./samba.md), [MDADM](./mdadm.md) and [LUKS volumes](./dm-crypt.md) there
 are separate entries.
 
@@ -8,6 +8,36 @@ are separate entries.
 
 This section focusses on various usages for disk management related topics.
 
+### Increasing Swap File Size
+
+The size of a swap file can easily be increased using the following steps.
+Using the following commands currently active swaps can be shown and the usage of them can be
+checked.
+
+```sh 
+swapon --show
+free -h 
+```
+
+Then the swap file can be changed using the following commands.
+`<location>` is the location of the swap file (for example `/swap.img`).
+`<size>` describes the new size of the swap file (for example `16G`)
+
+
+```sh 
+swapoff <location>
+fallocate -l <size> <location> 
+chmod 600 <location> 
+mkswap <location> 
+swapon <location> 
+```
+
+Finally the swap can be checked again to confirm that it is online and has the correct size
+
+```sh 
+swapon --show
+```
+
 ### Benchmarking Data Transfer Rates
 
 Real data transfer rates can easily be checked using the program `pv`.

wiki/linux/gpg.md

@@ -1,7 +1,7 @@
 # GPG
 
 [GNU Privacy Guard](https://gnupg.org/) - short GnuPG or just GPG - is a free and open-source
-implementation of OpenPGP from [RFC 4880](https://datatracker.ietf.org/doc/html/rfc4880).
+implementation of [OpenPGP](/wiki/openpgp.md).
 It is used to savely encrypt and decrypt messages or files using assymetric encryption.
 
 ## Setup
@@ -13,6 +13,15 @@ Sometimes it is also called `gnupg2`.
 
 This section addresses the usage of the Open GPG.
 
+### List or Find a Key
+
+To find a key use the following command.
+`<query>` is a search string and is optional.
+
+```sh
+gpg --list-keys <query>
+```
+
 ### Generating a Key Pair
 
 A fast way to generate a key pair is by running the following command.
@@ -104,6 +113,27 @@ gpg --recv-key <id>
 gpg --lsign <id>
 ```
 
+### Managing Multiple Users and E-Mails of an Existing Secret Key
+
+A secret key can have more than one e-mail assigned to it.
+After generating the key however only a single user is added by default.
+
+To add another one use the following command where `<key-id>` is the id of the key to add the
+e-mail to.
+
+```sh 
+gpg --edit-key <key-id>
+```
+
+Afterwards a console will open.
+Using `adduid` another user can be added by following the on-screen instructions.
+Afterwards `save` will save the progress and exit from the console.
+
+To delete an existing user and e-mail also open the edit-console.
+Then list the existing users using the command `uid` and select the user id of the key to delete
+with `uid <id>` where `<id>` is the key to delete.
+Then delete it with `deluid` and save with `save`.
+
 ## Troubleshooting 
 
 This section will focus on errors and the fixing of errors of GPG.

wiki/openpgp.md

@@ -0,0 +1,11 @@
+# OpenPGP
+
+[OpenPGP](https://www.openpgp.org/) is the most widely used encryption standard proposed in from
+[RFC 4880](https://datatracker.ietf.org/doc/html/rfc4880).
+
+## Setup
+
+There are different implementations of OpenPGP.
+Many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md) 
+package the implementation called [Gnu Privacy Guard](/wiki/linux/gpg.md) in the `gnupg` or
+sometimes also `gpg` or `gpg2` package.

wiki/programming_language/python.md

@@ -71,6 +71,38 @@ python3.9 --version
 
 ## Usage
 
+This section addresses the usage of Python.
+
+### Convert `.ipynb` Files to `.py` Files and Back
+
+Jupyter notebooks in the `.ipynb` format can easily be converted to normal Python files using
+[jupytext](https://jupytext.readthedocs.io/en/latest/).
+This can sometimes be useful when trying to avoid using notebooks.
+
+The following command will convert the file `<file>.ipynb` to a normal Python file.
+`<input-file>` describes the path without the file extension.
+
+```sh
+jupytext --to py <input-file>.ipynb
+```
+
+The same also works the other way around.
+
+```sh
+jupytext --to ipynb <input-file>.py
+```
+
+Using `md` in the `--to` option the notebook can also be converted to a
+[markdown](/wiki/markup_language.md) file and back.
+
+Alternatively [notedown](https://pypi.org/project/notedown/) can also convert to markdown using the
+following commands. 
+`<output-file>` is the path to the output file again without the extension.
+
+```sh
+notedown <input-file>.ipynb --to markdown > <output-file>.md
+```
+
 ### Create a requirements file
 
 To automatically create a `requirements.txt` of your current project, navigate
@@ -90,10 +122,10 @@ following command.
 ```sh
 source ./bin/activate
 ```
- 
+
 And it can be disabled by running the following.
 
-```sh 
+```sh
 deactivate
 ```
 
@@ -154,7 +186,7 @@ This should give back `True`.
 
 This section addresses the [TensorFlow module](https://www.tensorflow.org/).
 
-#### Basic Usage of TensorFlow 
+#### Basic Usage of TensorFlow
 
 The basic usage of TensorFlow is described in
 [the official guide](https://www.tensorflow.org/guide/keras/serialization_and_saving).

wiki/thunderbird.md

@@ -7,7 +7,25 @@ numerous e-mail addresses, calendars, todos and contacts.
 
 The following section addresses different uses and add-ons of Thunderbird.
 
-### Changing the (dark/light) Theme
+### Use PGP Key for Encryption, Decryption and Signing
+
+Thunderbird can use [OpenPGP](/wiki/openpgp.md) to sign, encrypt or decrypt mails.
+To add this navigate to the `Account Settings` under `Edit` and then select the mail to add the PGP
+key to and `End-to-End Encryption`.
+There keys can be added by selecting `Add Keys...` and afterwards the private key can be selected
+for encryption, decryption and signing.
+This however is only possible if the key is issued to the same e-mail it should be added to.
+
+### Enable Spell Checking of a Specific Language
+
+Spell checking can be changed in the `Settings` from the `Edit` tab.
+The configuration can be done under `Composition` in the `Spelling` section.
+There are two checkboxes to specify when the spell checking should occur.
+And under `Languages:` various and also multiple languages can be checked.
+To add another language follow the link and navigate to the language to install.
+Then install only dictionary since the language pack is not needed.
+
+### Changing the (Dark/Light) Theme
 
 This section is based on a
 [superuser comment by blnks](https://superuser.com/questions/1757333/how-can-i-view-thunderbird-in-full-dark-mode).

wiki/vnc.md

@@ -15,6 +15,9 @@ The following is a list of VNC clients.
 
 - [AVNC](https://github.com/gujjwal00/avnc) is a VNC client for [Android](/wiki/android.md)
   devices.
+- bvnc is a VNC client for [Linux](/wiki/linux.md).
+- Vinagre is a VNC client for [Linux](/wiki/linux.md).
+- gvnc is a VNC client for [Linux](/wiki/linux.md).
 
 ## VNC Server