$ pip3 install jupyter

$ jupyter notebook

# 生成配置文件
$ jupyter notebook --generate-config

# 设置密码, 把密码加密后写入文件, 不会启动服务
$ jupyter notebook password

$ jupyter notebook --ip 0.0.0.0 --port 18800 

AttributeError: partially initialized module 'charset_normalizer' has no attribute 'md__mypyc' (most likely due to a circular import)

$ pip3 install --force-reinstall charset-normalizer

$ jupyter lab --notebook-dir=$PWD --ip 0.0.0.0 --port 18800 --NotebookApp.token=token

docker run -d --name koel \
    -p 2070:80 \
    -e DB_CONNECTION=mysql \
    -e DB_HOST=192.168.1.3 \
    -e DB_DATABASE=koel \
    -e DB_USERNAME=koel \
    -e DB_PASSWORD=password \
    -v /mnt/user/music:/music \
    -v /mnt/user/appdata/koel/koel.env:/var/www/html/.env \
    -v /mnt/user/appdata/koel/covers:/var/www/html/public/img/covers \
    -v /mnt/user/appdata/koel/search_index:/var/www/html/storage/search-indexes \
    phanan/koel

APP_NAME=Koel
APP_ENV=production
APP_DEBUG=false
APP_URL=http://koel.domain.com

# A comma-separated list of (Koel server) hostnames accepted to access Koel.
# Leave this empty to allow access to Koel with any hostname.
# Example: localhost,192.168.0.1,yourdomain.com
TRUSTED_HOSTS=

# A random 32-char string. You can leave this empty if use php artisan koel:init.
APP_KEY=

# Database connection name, which corresponds to the database driver.
# Possible values are:
# mysql (MySQL/MariaDB - default)
# pgsql (PostgreSQL)
# sqlsrv (Microsoft SQL Server)
# sqlite-persistent (Local sqlite file)
# IMPORTANT: This value must present for `artisan koel:init` command to work.
DB_CONNECTION=mysql

DB_HOST=192.168.1.3
DB_PORT=
DB_DATABASE=koel
DB_USERNAME=koel
DB_PASSWORD=password

# Some providers (e.g. Heroku) provide a "database URL" instead separated config values, which
# you can use here instead.
DATABASE_URL=

# The absolute path to the root CA bundle if you're connecting to the MySQL database via SSL.
MYSQL_ATTR_SSL_CA=


# The storage driver. Valid values are:
# local: Store files on the server's local filesystem.
# sftp: Store files on an SFTP server.
# s3: Store files on Amazon S3 or a S3-compatible service (e.g. Cloudflare R2 or DigitalOcean Spaces). Koel Plus only.
# dropbox: Store files on Dropbox. Koel Plus only.
STORAGE_DRIVER=local


# The ABSOLUTE path to your media. This value can always be changed later via the web interface.
# Required if you're using the local file system to store your media (STORAGE_DRIVER=local).
MEDIA_PATH=


# S3 or S3-compatible service settings. Required if you're using S3 to store your media (STORAGE_DRIVER=s3).
# Remember to set CORS policy to allow access from your Koel's domain (or "*").
AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=
# For Cloudflare R2, set this to "auto". For S3 and other services, set this to the region of your bucket.
AWS_REGION=
AWS_ENDPOINT=
AWS_BUCKET=


# Dropbox settings. Required if you're using Dropbox to store your media (STORAGE_DRIVER=dropbox)
# Follow these steps to have these values filled:
# 1. Create a Dropbox app at https://www.dropbox.com/developers/apps
# 2. Run `php artisan koel:setup-dropbox` from the CLI and follow the instructions.
DROPBOX_APP_KEY=
DROPBOX_APP_SECRET=
DROPBOX_REFRESH_TOKEN=


# SFTP settings. Required if you're using SFTP to store your media (STORAGE_DRIVER=sftp).
SFTP_HOST=
SFTP_PORT=

# The absolute path of the directory to store the media files on the SFTP server.
# Make sure the directory exists and is writable by the SFTP user.
SFTP_ROOT=

# You can use either a username/password pair…
SFTP_USERNAME=
SFTP_PASSWORD=

# …or private key authentication:
SFTP_PRIVATE_KEY=
SFTP_PASSPHRASE=


# By default, Koel ignores dot files and folders. This greatly improves performance if your media
# root have folders like .git or .cache. If by any chance your media files are under a dot folder,
# set the following setting to false.
IGNORE_DOT_FILES=true


# The maximum scan time, in seconds. Increase this if you have a huge library.
# Note: This setting doesn't have effect when scanning via koel:sync.
APP_MAX_SCAN_TIME=600


# The memory limit, in MB, used by the scanning process.
# For example, if you want to set a memory limit of 2048MB, enter "2048" (without
# quotes) here.
MEMORY_LIMIT=


# The streaming method.
# Can be either 'php' (default), 'x-sendfile', or 'x-accel-redirect'
# See https://docs.koel.dev/usage/streaming for more information.
# Note: This setting doesn't have effect if the media needs transcoding (e.g. FLAC).

# It's HIGHLY recommended to use 'x-sendfile' or 'x-accel-redirect' if
# you plan to use the Koel mobile apps.

STREAMING_METHOD=php


# Full text search driver.
# Koel supports all drivers supported by Laravel (see https://laravel.com/docs/9.x/scout).
# Available drivers: 'tntsearch' (default), 'database', 'algolia' or 'meilisearch'.
# For Algolia or MeiliSearch, you need to provide the corresponding credentials.
SCOUT_DRIVER=tntsearch
ALGOLIA_APP_ID=
ALGOLIA_SECRET=
MEILISEARCH_HOST=
MEILISEARCH_KEY=


# Last.fm API can be used to fetch artist and album information, as well as to
# allow users to connect to their Last.fm account and scrobble.
# To integrate Koel with Last.fm, create an API account at
# https://www.last.fm/api/account/create and set the credentials here.
# Consult Koel's doc for more information.
LASTFM_API_KEY=
LASTFM_API_SECRET=


# Spotify API can be used to fetch artist and album images.
# To integrate Koel with Spotify, create a Spotify application at
# https://developer.spotify.com/dashboard/applications and set the credentials here.
# Consult Koel's docs for more information.
SPOTIFY_CLIENT_ID=
SPOTIFY_CLIENT_SECRET=


# To integrate Koel with YouTube, set the API key here.
# See https://docs.koel.dev/service-integrations#youtube for more information.
YOUTUBE_API_KEY=


# You can also configure Koel to use a CDN to serve the media files.
# This url must be mapped to the home URL of your Koel's installation.
# No trailing slash.
CDN_URL=


# To transcode FLAC to MP3 and stream it on the fly, make sure the following settings are sane.
# If you don't want to transcode FLAC (i.e. to stream it as-is), set this to false.
TRANSCODE_FLAC=false

# The full path of ffmpeg binary.
FFMPEG_PATH=/usr/local/bin/ffmpeg


# The bit rate of the output mp3 stream. Higher value results in better quality,
# but slower streaming and more bandwidth.
OUTPUT_BIT_RATE=128


# Whether to allow song downloading.
# Note that if you're downloading more than one song, Koel will zip them up
# using PHP's ZipArchive. So if the module isn't available in the current
# environment, such a download will (silently) fail.
ALLOW_DOWNLOAD=true


# Whether to create a backup of a song when deleting it from the filesystem.
BACKUP_ON_DELETE=true


# If using SSO, set the providers details here. Koel will automatically enable SSO if these values are set.
# Create an OAuth client and get these values from https://console.developers.google.com/apis/credentials
SSO_GOOGLE_CLIENT_ID=
SSO_GOOGLE_CLIENT_SECRET=
# The domain that users must belong to in order to be able to log in.
SSO_GOOGLE_HOSTED_DOMAIN=your.koel.domain


# Koel can be configured to authenticate users via a reverse proxy.
# To enable this feature, set PROXY_AUTH_ENABLED to true and provide the necessary configuration below.
PROXY_AUTH_ENABLED=false
# The header name that contains the unique identifier for the user
PROXY_AUTH_USER_HEADER=remote-user
# The header name that contains the user's preferred, humanly-readable name
PROXY_AUTH_PREFERRED_NAME_HEADER=remote-preferred-name
# A comma-separated list of allowed proxy IPs or CIDRs, for example, 10.10.1.0/24 or 2001:0db8:/32
# If empty, NO requests will be allowed (which means proxy authentication is disabled).
PROXY_AUTH_ALLOW_LIST=


# Sync logs can be found under storage/logs/. Valid options are:
# all: Log everything (errored-, skipped-, and successfully processed file).
# error: Log errors only. This is the default.
SYNC_LOG_LEVEL=error


# Koel attempts to detect if your website uses HTTPS and generates secure URLs accordingly.
# If this attempt fails for any reason, you can force it by setting this value to true.
FORCE_HTTPS=


# Pusher configuration, for interesting features such as remote controlling.
PUSHER_APP_ID=
PUSHER_APP_KEY=
PUSHER_APP_SECRET=
PUSHER_APP_CLUSTER=


# The following settings are for Koel to send emails, for example to send user invitations and reset passwords.
MAIL_FROM_ADDRESS=email@domain.com
MAIL_FROM_NAME="${APP_NAME}"
MAIL_MAILER=smtp
MAIL_HOST=mailhog
MAIL_PORT=1025
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null


SQS_PUBLIC_KEY=
SQS_SECRET_KEY=
SQS_QUEUE_PREFIX=
SQS_QUEUE_NAME=
SQS_QUEUE_REGION=


# The variables below are Laravel-specific.
# You can change them if you know what you're doing. Otherwise, just leave them as-is.
BROADCAST_DRIVER=log
CACHE_DRIVER=file
FILESYSTEM_DISK=local
QUEUE_CONNECTION=sync
SESSION_DRIVER=file
SESSION_LIFETIME=120

$ php artisan key:generate # 生成 APP_KEY
# 如果需要重新设置数据库地址，运行如下命令
# NOTE: 可选
$  php artisan koel:init # 忽略前端编译错误

# Username
admin@koel.dev
# Password
KoelIsCool

# [required] 1. 创建可执行服务程序
## File: test_service.sh
DATE=`date '+%Y-%m-%d %H:%M:%S'`
echo "Example service started at ${DATE}" | systemd-cat -p info

while :
do
  echo "Looping...";
  sleep 30;
done

# [optional] 2. 复制程序至 /usr/bin
$ sudo cp test_service.sh /usr/bin/test_service.sh
$ sudo chmod +x /usr/bin/test_service.sh

# [required] 3. 创建 Unit File
## File: myservice.service
[Unit]
Description=Example systemd service.

[Service]
Type=simple
ExecStart=/bin/bash /usr/bin/test_service.sh

[Install]
WantedBy=multi-user.target

# [required] 4. 复制 Unit File 至 /etc/systemd/system
$ sudo cp myservice.service /etc/systemd/system/myservice.service
$ sudo chmod 644 /etc/systemd/system/myservice.service

# 启动 
$ sudo systemctl start myservice

# 查看状态
$ sudo systemctl status myservice

# 停止
$ sudo systemctl stop myservice

# 重启
$ sudo systemctl restart myservice

# 开机启动
$ sudo systemctl enable myservice

git clone https://github.com/LazyVim/starter ~/.config/nvim

wget https://github.com/ryanoasis/nerd-fonts/releases/download/v3.2.1/JetBrainsMono.zip
unzip JetBrainsMono.zip -d ~/.local/share/fonts

sudo apt install fontconfig
fc-cache -fv

<space>e      # 打开 NeoTree

bd            # 删除当前 buffer
bn            # 下一个 buffer
bn{number}    # 下面的第 {number} 个
bp            # 前一个
bp{number}    # 前面的第 {number} 个
b#            # 切换到最近激活的 buffer
ls						# 列出所有 buffer

?							# 打开帮助框
a							# 添加文件/文件夹，添加文件夹则以 '/' 结尾，否则添加文件
H							# 显式/折叠隐藏文件
.							# 设置选定的目录为 root dir

<ctrl>-v    # 开启矩阵选择