diff --git a/.gitignore b/.gitignore
index 8dd734d..7603550 100644
--- a/.gitignore
+++ b/.gitignore
@@ -170,8 +170,9 @@
 # ruff
 .ruff_cache/
 
+# LSP config files
+pyrightconfig.json
+
 # End of https://www.toptal.com/developers/gitignore/api/python
 
 *.gif
-dist
-outputs
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7327dad..521f1af 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,7 +27,7 @@
       - id: mixed-line-ending
       - id: trailing-whitespace
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: "0.21.0"
+    rev: "0.22.0"
     hooks:
       - id: check-dependabot
       - id: check-github-actions
diff --git a/Makefile b/Makefile
index ff31767..1e69417 100644
--- a/Makefile
+++ b/Makefile
@@ -12,31 +12,36 @@
 
 TARGET := $(DIST)/$(NAME)$(EXE)
 
-.PHONY: build
-build:
-	pyinstaller --distpath $(DIST) --onefile --name $(NAME) $(CURDIR)/main.py
+build: $(TARGET)
 
 clean:
 	$(RM) --recursive $(CURDIR)/build
-	$(RM) --recursive $(CURDIR)/outputs
 	$(RM) --recursive $(DIST)
 	$(RM) $(CURDIR)/*.spec
 
-demo:
-ifeq ($(BW_SESSION),)
-	$(error Bitwarden Locked)
-else
-	vhs < $(CURDIR)/demo.tape
-endif
+demo: $(CURDIR)/demo.gif
 
-install: build
-	install --target-directory=$(BIN) $(TARGET)
+install: $(TARGET) | $(BIN)
+	install --target-directory=$(BIN) $<
 
 pretty:
 	isort --profile black $(CURDIR)
 	black $(CURDIR)
 
-rename: build
+rename: $(TARGET)
 ifneq ($(and $(OS), $(ARCH)), )
-	mv $(TARGET) $(DIST)/$(NAME)-$(OS)-$(ARCH)$(EXE)
+	mv $< $(DIST)/$(NAME)-$(OS)-$(ARCH)$(EXE)
+endif
+
+$(TARGET):
+	pyinstaller --distpath $(DIST) --onefile --name $(NAME) $(CURDIR)/main.py
+
+$(BIN):
+	mkdir --parents $@
+
+$(CURDIR)/demo.gif: $(CURDIR)/demo.tape
+ifeq ($(BW_SESSION),)
+	$(error Bitwarden Locked)
+else
+	vhs < $<
 endif
diff --git a/README.md b/README.md
index 44bc839..6c44bb1 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ## Demo
 
-![Demo](https://res.cloudinary.com/liblaf/image/upload/v1677213088/2023/02/24/20230224-1677213085.gif)
+![Demo](https://res.cloudinary.com/liblaf/image/upload/v1679497703/2023/03/22/20230322-1679497699.gif)
 
 The resulting file structure looks like:
 
@@ -22,6 +22,26 @@
          └── README.md
 ```
 
+## Usage
+
+**Usage**:
+
+```shell-session
+$ tld [OPTIONS]
+```
+
+**Options**:
+
+- `-u, --username TEXT`: [default: liqin20]
+- `-p, --password TEXT`
+- `-s, --semester TEXT`: [default: 2022-2023-2]
+- `-c, --course TEXT`
+- `--prefix PATH`: [default: /home/liblaf/Desktop/thu-learn]
+- `-s, --size-limit INTEGER`: [default: 9223372036854775807]
+- `--install-completion`: Install completion for the current shell.
+- `--show-completion`: Show completion for the current shell, to copy it or customize the installation.
+- `--help`: Show this message and exit.
+
 ## Features
 
 - fast concurrent download
@@ -31,9 +51,8 @@
 - dump homework details into `README.md` in each homework folder
 - pretty markdown files powered by [prettier](https://prettier.io) (require `prettier` installed)
 
-## Usage
+## Installation
 
-Download pre-built binary from [releases](https://github.com/liblaf/thu-learn-downloader/releases) or install from PyPI by executing `pip install thu-learn-downloader`.
-
-1. Prepare a `config.yaml` like [config.yaml](https://github.com/liblaf/thu-learn-downloader/blob/main/config.yaml).
-2. Run `thu-learn-downloader password="***"` and wait for the sync to finish.
+- download pre-built binary form [GitHub Releases](https://github.com/liblaf/thu-learn-downloader/releases)
+- `pip install thu-learn-downloader`
+- `pipx install thu-learn-downloader`
diff --git a/config.yaml b/config.yaml
deleted file mode 100644
index bffe50d..0000000
--- a/config.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-username: liqin20
-password: "****************"
-semesters:
-  - 2022-2023-2
diff --git a/demo.tape b/demo.tape
index be71893..4b38df7 100644
--- a/demo.tape
+++ b/demo.tape
@@ -4,9 +4,9 @@
 Set Height 1080
 Set FontSize 12
 
-Require thu-learn-downloader
+Require tld
 
-Type 'thu-learn-downloader password="$(bw get password id.tsinghua.edu.cn)"'
+Type 'tld --password "$(bw get password id.tsinghua.edu.cn)"'
 Sleep 500ms
 Enter
 Sleep 10s
diff --git a/main.py b/main.py
index 5078d73..cd9cfcc 100644
--- a/main.py
+++ b/main.py
@@ -1,4 +1,4 @@
-from thu_learn_downloader.__main__ import main
+from thu_learn_downloader.__main__ import run
 
 if __name__ == "__main__":
-    main()
+    run()
diff --git a/poetry.lock b/poetry.lock
index 795446e..25a13c3 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.4.0 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.4.1 and should not be changed by hand.
 
 [[package]]
 name = "altgraph"
@@ -13,26 +13,15 @@
 ]
 
 [[package]]
-name = "antlr4-python3-runtime"
-version = "4.9.3"
-description = "ANTLR 4.9.3 runtime for Python 3.7"
-category = "main"
-optional = false
-python-versions = "*"
-files = [
-    {file = "antlr4-python3-runtime-4.9.3.tar.gz", hash = "sha256:f224469b4168294902bb1efa80a8bf7855f24c99aef99cbefc1bcd3cce77881b"},
-]
-
-[[package]]
 name = "beautifulsoup4"
-version = "4.11.2"
+version = "4.12.0"
 description = "Screen-scraping library"
 category = "main"
 optional = false
 python-versions = ">=3.6.0"
 files = [
-    {file = "beautifulsoup4-4.11.2-py3-none-any.whl", hash = "sha256:0e79446b10b3ecb499c1556f7e228a53e64a2bfcebd455f370d8927cb5b59e39"},
-    {file = "beautifulsoup4-4.11.2.tar.gz", hash = "sha256:bc4bdda6717de5a2987436fb8d72f45dc90dd856bdfd512a1314ce90349a0106"},
+    {file = "beautifulsoup4-4.12.0-py3-none-any.whl", hash = "sha256:2130a5ad7f513200fae61a17abb5e338ca980fa28c439c0571014bc0217e9591"},
+    {file = "beautifulsoup4-4.12.0.tar.gz", hash = "sha256:c5fceeaec29d09c84970e47c65f2f0efe57872f7cff494c9691a26ec0ff13234"},
 ]
 
 [package.dependencies]
@@ -43,6 +32,55 @@
 lxml = ["lxml"]
 
 [[package]]
+name = "black"
+version = "23.1.0"
+description = "The uncompromising code formatter."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "black-23.1.0-cp310-cp310-macosx_10_16_arm64.whl", hash = "sha256:b6a92a41ee34b883b359998f0c8e6eb8e99803aa8bf3123bf2b2e6fec505a221"},
+    {file = "black-23.1.0-cp310-cp310-macosx_10_16_universal2.whl", hash = "sha256:57c18c5165c1dbe291d5306e53fb3988122890e57bd9b3dcb75f967f13411a26"},
+    {file = "black-23.1.0-cp310-cp310-macosx_10_16_x86_64.whl", hash = "sha256:9880d7d419bb7e709b37e28deb5e68a49227713b623c72b2b931028ea65f619b"},
+    {file = "black-23.1.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e6663f91b6feca5d06f2ccd49a10f254f9298cc1f7f49c46e498a0771b507104"},
+    {file = "black-23.1.0-cp310-cp310-win_amd64.whl", hash = "sha256:9afd3f493666a0cd8f8df9a0200c6359ac53940cbde049dcb1a7eb6ee2dd7074"},
+    {file = "black-23.1.0-cp311-cp311-macosx_10_16_arm64.whl", hash = "sha256:bfffba28dc52a58f04492181392ee380e95262af14ee01d4bc7bb1b1c6ca8d27"},
+    {file = "black-23.1.0-cp311-cp311-macosx_10_16_universal2.whl", hash = "sha256:c1c476bc7b7d021321e7d93dc2cbd78ce103b84d5a4cf97ed535fbc0d6660648"},
+    {file = "black-23.1.0-cp311-cp311-macosx_10_16_x86_64.whl", hash = "sha256:382998821f58e5c8238d3166c492139573325287820963d2f7de4d518bd76958"},
+    {file = "black-23.1.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2bf649fda611c8550ca9d7592b69f0637218c2369b7744694c5e4902873b2f3a"},
+    {file = "black-23.1.0-cp311-cp311-win_amd64.whl", hash = "sha256:121ca7f10b4a01fd99951234abdbd97728e1240be89fde18480ffac16503d481"},
+    {file = "black-23.1.0-cp37-cp37m-macosx_10_16_x86_64.whl", hash = "sha256:a8471939da5e824b891b25751955be52ee7f8a30a916d570a5ba8e0f2eb2ecad"},
+    {file = "black-23.1.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:8178318cb74f98bc571eef19068f6ab5613b3e59d4f47771582f04e175570ed8"},
+    {file = "black-23.1.0-cp37-cp37m-win_amd64.whl", hash = "sha256:a436e7881d33acaf2536c46a454bb964a50eff59b21b51c6ccf5a40601fbef24"},
+    {file = "black-23.1.0-cp38-cp38-macosx_10_16_arm64.whl", hash = "sha256:a59db0a2094d2259c554676403fa2fac3473ccf1354c1c63eccf7ae65aac8ab6"},
+    {file = "black-23.1.0-cp38-cp38-macosx_10_16_universal2.whl", hash = "sha256:0052dba51dec07ed029ed61b18183942043e00008ec65d5028814afaab9a22fd"},
+    {file = "black-23.1.0-cp38-cp38-macosx_10_16_x86_64.whl", hash = "sha256:49f7b39e30f326a34b5c9a4213213a6b221d7ae9d58ec70df1c4a307cf2a1580"},
+    {file = "black-23.1.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:162e37d49e93bd6eb6f1afc3e17a3d23a823042530c37c3c42eeeaf026f38468"},
+    {file = "black-23.1.0-cp38-cp38-win_amd64.whl", hash = "sha256:8b70eb40a78dfac24842458476135f9b99ab952dd3f2dab738c1881a9b38b753"},
+    {file = "black-23.1.0-cp39-cp39-macosx_10_16_arm64.whl", hash = "sha256:a29650759a6a0944e7cca036674655c2f0f63806ddecc45ed40b7b8aa314b651"},
+    {file = "black-23.1.0-cp39-cp39-macosx_10_16_universal2.whl", hash = "sha256:bb460c8561c8c1bec7824ecbc3ce085eb50005883a6203dcfb0122e95797ee06"},
+    {file = "black-23.1.0-cp39-cp39-macosx_10_16_x86_64.whl", hash = "sha256:c91dfc2c2a4e50df0026f88d2215e166616e0c80e86004d0003ece0488db2739"},
+    {file = "black-23.1.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2a951cc83ab535d248c89f300eccbd625e80ab880fbcfb5ac8afb5f01a258ac9"},
+    {file = "black-23.1.0-cp39-cp39-win_amd64.whl", hash = "sha256:0680d4380db3719ebcfb2613f34e86c8e6d15ffeabcf8ec59355c5e7b85bb555"},
+    {file = "black-23.1.0-py3-none-any.whl", hash = "sha256:7a0f701d314cfa0896b9001df70a530eb2472babb76086344e688829efd97d32"},
+    {file = "black-23.1.0.tar.gz", hash = "sha256:b0bd97bea8903f5a2ba7219257a44e3f1f9d00073d6cc1add68f0beec69692ac"},
+]
+
+[package.dependencies]
+click = ">=8.0.0"
+mypy-extensions = ">=0.4.3"
+packaging = ">=22.0"
+pathspec = ">=0.9.0"
+platformdirs = ">=2"
+tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
+
+[package.extras]
+colorama = ["colorama (>=0.4.3)"]
+d = ["aiohttp (>=3.7.4)"]
+jupyter = ["ipython (>=7.8.0)", "tokenize-rt (>=3.2.0)"]
+uvloop = ["uvloop (>=0.15.2)"]
+
+[[package]]
 name = "certifi"
 version = "2022.12.7"
 description = "Python package for providing Mozilla's CA Bundle."
@@ -140,21 +178,46 @@
 ]
 
 [[package]]
-name = "hydra-core"
-version = "1.3.2"
-description = "A framework for elegantly configuring complex applications"
+name = "click"
+version = "8.1.3"
+description = "Composable command line interface toolkit"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "click-8.1.3-py3-none-any.whl", hash = "sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48"},
+    {file = "click-8.1.3.tar.gz", hash = "sha256:7682dc8afb30297001674575ea00d1814d808d6a36af415a82bd481d37ba7b8e"},
+]
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+category = "main"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
+    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
+
+[[package]]
+name = "commonmark"
+version = "0.9.1"
+description = "Python parser for the CommonMark Markdown spec"
 category = "main"
 optional = false
 python-versions = "*"
 files = [
-    {file = "hydra-core-1.3.2.tar.gz", hash = "sha256:8a878ed67216997c3e9d88a8e72e7b4767e81af37afb4ea3334b269a4390a824"},
-    {file = "hydra_core-1.3.2-py3-none-any.whl", hash = "sha256:fa0238a9e31df3373b35b0bfb672c34cc92718d21f81311d8996a16de1141d8b"},
+    {file = "commonmark-0.9.1-py2.py3-none-any.whl", hash = "sha256:da2f38c92590f83de410ba1a3cbceafbc74fee9def35f9251ba9a971d6d66fd9"},
+    {file = "commonmark-0.9.1.tar.gz", hash = "sha256:452f9dc859be7f06631ddcb328b6919c67984aca654e5fefb3914d54691aed60"},
 ]
 
-[package.dependencies]
-antlr4-python3-runtime = ">=4.9.0,<4.10.0"
-omegaconf = ">=2.2,<2.4"
-packaging = "*"
+[package.extras]
+test = ["flake8 (==3.7.8)", "hypothesis (==3.55.3)"]
 
 [[package]]
 name = "idna"
@@ -169,6 +232,24 @@
 ]
 
 [[package]]
+name = "isort"
+version = "5.12.0"
+description = "A Python utility / library to sort Python imports."
+category = "dev"
+optional = false
+python-versions = ">=3.8.0"
+files = [
+    {file = "isort-5.12.0-py3-none-any.whl", hash = "sha256:f84c2818376e66cf843d497486ea8fed8700b340f308f076c6fb1229dff318b6"},
+    {file = "isort-5.12.0.tar.gz", hash = "sha256:8bef7dde241278824a6d83f44a544709b065191b95b6e50894bdc722fcba0504"},
+]
+
+[package.extras]
+colors = ["colorama (>=0.4.3)"]
+pipfile-deprecated-finder = ["pip-shims (>=0.5.2)", "pipreqs", "requirementslib"]
+plugins = ["setuptools"]
+requirements-deprecated-finder = ["pip-api", "pipreqs"]
+
+[[package]]
 name = "macholib"
 version = "1.16.2"
 description = "Mach-O header analysis and editing"
@@ -184,63 +265,22 @@
 altgraph = ">=0.17"
 
 [[package]]
-name = "markdown-it-py"
-version = "2.2.0"
-description = "Python port of markdown-it. Markdown parsing, done right!"
-category = "main"
+name = "mypy-extensions"
+version = "1.0.0"
+description = "Type system extensions for programs checked with the mypy type checker."
+category = "dev"
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.5"
 files = [
-    {file = "markdown-it-py-2.2.0.tar.gz", hash = "sha256:7c9a5e412688bc771c67432cbfebcdd686c93ce6484913dccf06cb5a0bea35a1"},
-    {file = "markdown_it_py-2.2.0-py3-none-any.whl", hash = "sha256:5a35f8d1870171d9acc47b99612dc146129b631baf04970128b568f190d0cc30"},
+    {file = "mypy_extensions-1.0.0-py3-none-any.whl", hash = "sha256:4392f6c0eb8a5668a69e23d168ffa70f0be9ccfd32b5cc2d26a34ae5b844552d"},
+    {file = "mypy_extensions-1.0.0.tar.gz", hash = "sha256:75dbf8955dc00442a438fc4d0666508a9a97b6bd41aa2f0ffe9d2f2725af0782"},
 ]
 
-[package.dependencies]
-mdurl = ">=0.1,<1.0"
-
-[package.extras]
-benchmarking = ["psutil", "pytest", "pytest-benchmark"]
-code-style = ["pre-commit (>=3.0,<4.0)"]
-compare = ["commonmark (>=0.9,<1.0)", "markdown (>=3.4,<4.0)", "mistletoe (>=1.0,<2.0)", "mistune (>=2.0,<3.0)", "panflute (>=2.3,<3.0)"]
-linkify = ["linkify-it-py (>=1,<3)"]
-plugins = ["mdit-py-plugins"]
-profiling = ["gprof2dot"]
-rtd = ["attrs", "myst-parser", "pyyaml", "sphinx", "sphinx-copybutton", "sphinx-design", "sphinx_book_theme"]
-testing = ["coverage", "pytest", "pytest-cov", "pytest-regressions"]
-
-[[package]]
-name = "mdurl"
-version = "0.1.2"
-description = "Markdown URL utilities"
-category = "main"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "mdurl-0.1.2-py3-none-any.whl", hash = "sha256:84008a41e51615a49fc9966191ff91509e3c40b939176e643fd50a5c2196b8f8"},
-    {file = "mdurl-0.1.2.tar.gz", hash = "sha256:bb413d29f5eea38f31dd4754dd7377d4465116fb207585f97bf925588687c1ba"},
-]
-
-[[package]]
-name = "omegaconf"
-version = "2.3.0"
-description = "A flexible configuration library"
-category = "main"
-optional = false
-python-versions = ">=3.6"
-files = [
-    {file = "omegaconf-2.3.0-py3-none-any.whl", hash = "sha256:7b4df175cdb08ba400f45cae3bdcae7ba8365db4d165fc65fd04b050ab63b46b"},
-    {file = "omegaconf-2.3.0.tar.gz", hash = "sha256:d5d4b6d29955cc50ad50c46dc269bcd92c6e00f5f90d23ab5fee7bfca4ba4cc7"},
-]
-
-[package.dependencies]
-antlr4-python3-runtime = ">=4.9.0,<4.10.0"
-PyYAML = ">=5.1.0"
-
 [[package]]
 name = "packaging"
 version = "23.0"
 description = "Core utilities for Python packages"
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -249,6 +289,18 @@
 ]
 
 [[package]]
+name = "pathspec"
+version = "0.11.1"
+description = "Utility library for gitignore style pattern matching of file paths."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "pathspec-0.11.1-py3-none-any.whl", hash = "sha256:d8af70af76652554bd134c22b3e8a1cc46ed7d91edcdd721ef1a0c51a84a5293"},
+    {file = "pathspec-0.11.1.tar.gz", hash = "sha256:2798de800fa92780e33acca925945e9a19a133b715067cf165b8866c15a31687"},
+]
+
+[[package]]
 name = "pefile"
 version = "2023.2.7"
 description = "Python PE parsing module"
@@ -261,6 +313,22 @@
 ]
 
 [[package]]
+name = "platformdirs"
+version = "3.1.1"
+description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "platformdirs-3.1.1-py3-none-any.whl", hash = "sha256:e5986afb596e4bb5bde29a79ac9061aa955b94fca2399b7aaac4090860920dd8"},
+    {file = "platformdirs-3.1.1.tar.gz", hash = "sha256:024996549ee88ec1a9aa99ff7f8fc819bb59e2c3477b410d90a16d32d6e707aa"},
+]
+
+[package.extras]
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+
+[[package]]
 name = "pygments"
 version = "2.14.0"
 description = "Pygments is a syntax highlighting package written in Python."
@@ -277,24 +345,24 @@
 
 [[package]]
 name = "pyinstaller"
-version = "5.8.0"
+version = "5.9.0"
 description = "PyInstaller bundles a Python application and all its dependencies into a single package."
 category = "dev"
 optional = false
 python-versions = "<3.12,>=3.7"
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 [package.dependencies]
@@ -311,14 +379,14 @@
 
 [[package]]
 name = "pyinstaller-hooks-contrib"
-version = "2023.0"
+version = "2023.1"
 description = "Community maintained hooks for PyInstaller"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
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 [[package]]
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 ]
 
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-category = "main"
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-python-versions = ">=3.6"
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-]
-
-[[package]]
 name = "requests"
 version = "2.28.2"
 description = "Python HTTP for Humans."
@@ -407,22 +425,22 @@
 
 [[package]]
 name = "rich"
-version = "13.3.2"
+version = "12.6.0"
 description = "Render rich text, tables, progress bars, syntax highlighting, markdown and more to the terminal"
 category = "main"
 optional = false
-python-versions = ">=3.7.0"
+python-versions = ">=3.6.3,<4.0.0"
 files = [
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-    {file = "rich-13.3.2.tar.gz", hash = "sha256:91954fe80cfb7985727a467ca98a7618e5dd15178cc2da10f553b36a93859001"},
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+    {file = "rich-12.6.0.tar.gz", hash = "sha256:ba3a3775974105c221d31141f2c116f4fd65c5ceb0698657a11e9f295ec93fd0"},
 ]
 
 [package.dependencies]
-markdown-it-py = ">=2.2.0,<3.0.0"
-pygments = ">=2.13.0,<3.0.0"
+commonmark = ">=0.9.0,<0.10.0"
+pygments = ">=2.6.0,<3.0.0"
 
 [package.extras]
-jupyter = ["ipywidgets (>=7.5.1,<9)"]
+jupyter = ["ipywidgets (>=7.5.1,<8.0.0)"]
 
 [[package]]
 name = "setuptools"
@@ -442,6 +460,18 @@
 testing-integration = ["build[virtualenv]", "filelock (>=3.4.0)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pytest", "pytest-enabler", "pytest-xdist", "tomli", "virtualenv (>=13.0.0)", "wheel"]
 
 [[package]]
+name = "shellingham"
+version = "1.5.0.post1"
+description = "Tool to Detect Surrounding Shell"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
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+]
+
+[[package]]
 name = "soupsieve"
 version = "2.4"
 description = "A modern CSS selector implementation for Beautiful Soup."
@@ -454,15 +484,51 @@
 ]
 
 [[package]]
+name = "tomli"
+version = "2.0.1"
+description = "A lil' TOML parser"
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
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+]
+
+[[package]]
+name = "typer"
+version = "0.7.0"
+description = "Typer, build great CLIs. Easy to code. Based on Python type hints."
+category = "main"
+optional = false
+python-versions = ">=3.6"
+files = [
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+
+[package.dependencies]
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+colorama = {version = ">=0.4.3,<0.5.0", optional = true, markers = "extra == \"all\""}
+rich = {version = ">=10.11.0,<13.0.0", optional = true, markers = "extra == \"all\""}
+shellingham = {version = ">=1.3.0,<2.0.0", optional = true, markers = "extra == \"all\""}
+
+[package.extras]
+all = ["colorama (>=0.4.3,<0.5.0)", "rich (>=10.11.0,<13.0.0)", "shellingham (>=1.3.0,<2.0.0)"]
+dev = ["autoflake (>=1.3.1,<2.0.0)", "flake8 (>=3.8.3,<4.0.0)", "pre-commit (>=2.17.0,<3.0.0)"]
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+
+[[package]]
 name = "urllib3"
-version = "1.26.14"
+version = "1.26.15"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 files = [
-    {file = "urllib3-1.26.14-py2.py3-none-any.whl", hash = "sha256:75edcdc2f7d85b137124a6c3c9fc3933cdeaa12ecb9a6a959f22797a0feca7e1"},
-    {file = "urllib3-1.26.14.tar.gz", hash = "sha256:076907bf8fd355cde77728471316625a4d2f7e713c125f51953bb5b3eecf4f72"},
+    {file = "urllib3-1.26.15-py2.py3-none-any.whl", hash = "sha256:aa751d169e23c7479ce47a0cb0da579e3ede798f994f5816a74e4f4500dcea42"},
+    {file = "urllib3-1.26.15.tar.gz", hash = "sha256:8a388717b9476f934a21484e8c8e61875ab60644d29b9b39e11e4b9dc1c6b305"},
 ]
 
 [package.extras]
@@ -473,4 +539,4 @@
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10,<3.12"
-content-hash = "e71af7917990149ef02e33b887fdeb85bb4c4a6e5c5416e56a9ae74d1cd292e2"
+content-hash = "1bcafc1a0b862e4d4b1f8a235b6588c9be4ec5844f48195e0d52a036e130ca6d"
diff --git a/pyproject.toml b/pyproject.toml
index 03a9ead..c08a4cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,14 +16,16 @@
 
 [tool.poetry.dependencies]
 beautifulsoup4 = "^4.11.2"
-hydra-core = "^1.3.1"
 python = ">=3.10,<3.12"
 requests = "^2.28.2"
-rich = "^13.3.1"
+rich = "^12.0.0"
+typer = { extras = ["all"], version = "^0.7.0" }
 
 [tool.poetry.group.dev.dependencies]
 pyinstaller = "^5.8.0"
+black = "^23.1.0"
+isort = "^5.12.0"
 
 [tool.poetry.scripts]
-thu-learn-downloader = "thu_learn_downloader.__main__:main"
-tld = "thu_learn_downloader.__main__:main"
+thu-learn-downloader = "thu_learn_downloader.__main__:run"
+tld = "thu_learn_downloader.__main__:run"
diff --git a/requirements.txt b/requirements.txt
index 320ff39..fdf23a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,14 @@
-antlr4-python3-runtime==4.9.3 ; python_version >= "3.10" and python_version < "3.12"
-beautifulsoup4==4.11.2 ; python_version >= "3.10" and python_version < "3.12"
+beautifulsoup4==4.12.0 ; python_version >= "3.10" and python_version < "3.12"
 certifi==2022.12.7 ; python_version >= "3.10" and python_version < "3.12"
 charset-normalizer==3.1.0 ; python_version >= "3.10" and python_version < "3.12"
-hydra-core==1.3.2 ; python_version >= "3.10" and python_version < "3.12"
+click==8.1.3 ; python_version >= "3.10" and python_version < "3.12"
+colorama==0.4.6 ; python_version >= "3.10" and python_version < "3.12"
+commonmark==0.9.1 ; python_version >= "3.10" and python_version < "3.12"
 idna==3.4 ; python_version >= "3.10" and python_version < "3.12"
-markdown-it-py==2.2.0 ; python_version >= "3.10" and python_version < "3.12"
-mdurl==0.1.2 ; python_version >= "3.10" and python_version < "3.12"
-omegaconf==2.3.0 ; python_version >= "3.10" and python_version < "3.12"
-packaging==23.0 ; python_version >= "3.10" and python_version < "3.12"
 pygments==2.14.0 ; python_version >= "3.10" and python_version < "3.12"
-pyyaml==6.0 ; python_version >= "3.10" and python_version < "3.12"
 requests==2.28.2 ; python_version >= "3.10" and python_version < "3.12"
-rich==13.3.2 ; python_version >= "3.10" and python_version < "3.12"
+rich==12.6.0 ; python_version >= "3.10" and python_version < "3.12"
+shellingham==1.5.0.post1 ; python_version >= "3.10" and python_version < "3.12"
 soupsieve==2.4 ; python_version >= "3.10" and python_version < "3.12"
-urllib3==1.26.14 ; python_version >= "3.10" and python_version < "3.12"
+typer[all]==0.7.0 ; python_version >= "3.10" and python_version < "3.12"
+urllib3==1.26.15 ; python_version >= "3.10" and python_version < "3.12"
diff --git a/thu_learn_downloader/__main__.py b/thu_learn_downloader/__main__.py
index baa23e2..1c2ceef 100644
--- a/thu_learn_downloader/__main__.py
+++ b/thu_learn_downloader/__main__.py
@@ -1,7 +1,7 @@
-import os
+import sys
+from pathlib import Path
 
-import hydra
-from omegaconf import DictConfig
+import typer
 from rich.console import Group
 from rich.live import Live
 from rich.panel import Panel
@@ -14,13 +14,30 @@
 )
 
 from . import sync
+from .config import Config
 from .constants import MAX_ACTIVE_TASKS, SUCCESS_PREFIX
 from .downloader import Downloader
 from .helper import Helper
 
 
-@hydra.main(config_path=os.getcwd(), config_name="config.yaml", version_base="1.3")
-def main(config: DictConfig) -> None:
+def main(
+    username: str = typer.Option("liqin20", "-u", "--username"),
+    password: str = typer.Option(
+        None, "-p", "--password", prompt=True, hide_input=True
+    ),
+    semester: list[str] = typer.Option(["2022-2023-2"], "-s", "--semester"),
+    course: list[str] = typer.Option([], "-c", "--course"),
+    prefix: Path = typer.Option(Path.home() / "Desktop" / "thu-learn", "--prefix"),
+    size_limit: int = typer.Option(sys.maxsize, "-s", "--size-limit"),
+) -> None:
+    config = Config(
+        username=username,
+        password=password,
+        semesters=semester,
+        courses=course,
+        prefix=prefix,
+        size_limit=size_limit,
+    )
     helper = Helper()
     downloader = Downloader()
     overall_progress = Progress(
@@ -36,8 +53,6 @@
         Panel(overall_progress),
     )
 
-    username: str = config.get("username")
-    password: str = config.get("password")
     with Live(progress_group) as live:
         with downloader.pool:
             try:
@@ -64,5 +79,9 @@
                 )
 
 
+def run() -> None:
+    typer.run(main)
+
+
 if __name__ == "__main__":
-    main()
+    run()
diff --git a/thu_learn_downloader/config.py b/thu_learn_downloader/config.py
new file mode 100644
index 0000000..f72e7ca
--- /dev/null
+++ b/thu_learn_downloader/config.py
@@ -0,0 +1,15 @@
+import dataclasses
+import sys
+from pathlib import Path
+
+
+@dataclasses.dataclass(kw_only=True)
+class Config:
+    username: str = "liqin20"
+    password: str
+
+    semesters: list[str] = dataclasses.field(default_factory=lambda: ["2022-2023-2"])
+    courses: list[str] = dataclasses.field(default_factory=list)
+
+    prefix: Path = Path.home() / "Desktop" / "thu-learn"
+    size_limit: int = sys.maxsize
diff --git a/thu_learn_downloader/constants.py b/thu_learn_downloader/constants.py
index 2fd78c2..fd34c99 100644
--- a/thu_learn_downloader/constants.py
+++ b/thu_learn_downloader/constants.py
@@ -1,12 +1,9 @@
-from pathlib import Path
-
 from rich.style import Style
 
 from . import typing as t
 
 BS_FEATURES = "html.parser"
 CHUNK_SIZE = 1024 * 1024
-DEFAULT_PREFIX = Path.home() / "Desktop" / "thu-learn"
 MAX_ACTIVE_TASKS = 16
 
 
diff --git a/thu_learn_downloader/sync.py b/thu_learn_downloader/sync.py
index f606965..ff392d5 100644
--- a/thu_learn_downloader/sync.py
+++ b/thu_learn_downloader/sync.py
@@ -1,24 +1,17 @@
 import os
 import shutil
 import subprocess
-import sys
 from datetime import datetime
 from pathlib import Path
 from typing import Optional
 
-from omegaconf import DictConfig
 from rich.console import Console
 from rich.progress import Progress, TaskID
 
 from . import typing as t
 from . import utils
-from .constants import (
-    DEFAULT_PREFIX,
-    DOCUMENT_STYLE,
-    HOMEWORK_STYLE,
-    SKIPPED_PREFIX,
-    SUCCESS_PREFIX,
-)
+from .config import Config
+from .constants import DOCUMENT_STYLE, HOMEWORK_STYLE, SKIPPED_PREFIX, SUCCESS_PREFIX
 from .downloader import Downloader
 from .helper import Helper
 
@@ -26,14 +19,14 @@
 def sync_all(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     *,
     console: Console = Console(),
     overall_progress: Progress = Progress(),
     semesters_task_id: TaskID = TaskID(0),
     courses_task_id: TaskID = TaskID(1),
 ) -> None:
-    semesters = config.get("semesters") or helper.get_semester_id_list()
+    semesters = config.semesters or helper.get_semester_id_list()
 
     for semester in overall_progress.track(
         semesters, task_id=semesters_task_id, description="Semesters"
@@ -52,7 +45,7 @@
 def sync_semester(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     semester_id: str,
     *,
     console: Console = Console(),
@@ -61,12 +54,12 @@
 ) -> None:
     courses: list[t.CourseInfo] = helper.get_course_list(semester_id=semester_id)
 
-    if config.get("courses"):
+    if config.courses:
         courses = [
             course
             for course in courses
-            if course.name in config["courses"]
-            or course.english_name in config["courses"]
+            if (course.name in config.courses)
+            or (course.english_name in config.courses)
         ]
 
     overall_progress.update(
@@ -85,7 +78,7 @@
 def sync_course(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     course: t.CourseInfo,
     *,
     console: Console = Console(),
@@ -109,15 +102,13 @@
 def sync_files(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     course: t.CourseInfo,
     *,
     console: Console = Console(),
 ) -> None:
-    prefix: Path = Path(
-        config.get(key="prefix", default_value=DEFAULT_PREFIX)
-    ).expanduser()
-    size_limit: int = config.get(key="size_limit", default_value=sys.maxsize)
+    prefix: Path = config.prefix
+    size_limit: int = config.size_limit
 
     files: list[t.File] = helper.get_file_list(course_id=course.id)
     files: list[t.File] = sorted(files, key=lambda f: f.id)
@@ -153,7 +144,7 @@
 def sync_homeworks(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     course: t.CourseInfo,
     *,
     console: Console = Console(),
@@ -182,15 +173,13 @@
 def sync_homework_detail(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     course: t.CourseInfo,
     hw: t.Homework,
     *,
     console: Console = Console(),
 ) -> None:
-    prefix: Path = Path(
-        config.get(key="prefix", default_value=DEFAULT_PREFIX)
-    ).expanduser()
+    prefix: Path = config.prefix
     title: str = f"{hw.number:02d}-{hw.title}"
     filepath: Path = prefix / course.english_name / "work" / title / "README.md"
     os.makedirs(filepath.parent, exist_ok=True)
@@ -211,7 +200,7 @@
 def sync_homework_attachments(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     course: t.CourseInfo,
     hw: t.Homework,
     *,
@@ -262,7 +251,7 @@
 def sync_homework_attachment(
     helper: Helper,
     downloader: Downloader,
-    config: DictConfig,
+    config: Config,
     course: t.CourseInfo,
     hw: t.Homework,
     attach: Optional[t.RemoteFile],
@@ -272,9 +261,7 @@
 ) -> None:
     if not attach:
         return
-    prefix: Path = Path(
-        config.get(key="prefix", default_value=DEFAULT_PREFIX)
-    ).expanduser()
+    prefix: Path = config.prefix
     title: str = f"{hw.number:02d}-{hw.title}"
     filename: str = utils.remove_attachment_prefix(attach.name)
     filename: str = f"{attach_type}-{filename}"