diff --git a/.editorconfig b/.editorconfig
index 58708d8..9d0107b 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -3,17 +3,17 @@
 # top-most EditorConfig file
 root = true
 
-# Unix-style newlines with a newline ending every file
 [*]
-end_of_line = lf
-insert_final_newline = true
-
-# Matches multiple files with brace expansion notation
-# Set default charset
-[*.{js,py}]
 charset = utf-8
-
-# 4 space indentation
-[*.py]
-indent_style = tab
+end_of_line = lf
+max_line_length = 100
+insert_final_newline = true
+indent_style = space
 indent_size = 2
+trim_trailing_whitespace = true
+
+[*.py]
+indent_size = 4
+
+[Makefile]
+indent_style = tab
diff --git a/.github/CODE_OF_CONDUCT.md b/.github/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..2a55daa
--- /dev/null
+++ b/.github/CODE_OF_CONDUCT.md
@@ -0,0 +1,57 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation
+in our community a harassment-free experience for everyone, regardless
+of age, body size, visible or invisible disability, ethnicity, sex
+characteristics, gender identity and expression, level of experience,
+education, socio-economic status, nationality, personal appearance,
+race, caste, color, religion, or sexual identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open,
+welcoming, diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment:
+- Demonstrating empathy and kindness
+- Being respectful of differing opinions
+- Gracefully accepting constructive feedback
+- Focusing on what is best for the community
+
+Examples of unacceptable behavior:
+- The use of sexualized language or imagery
+- Trolling, insulting or derogatory comments
+- Harassment of any kind
+- Publishing others’ private information
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our
+standards and will take appropriate and fair corrective action in
+response to any behavior they deem inappropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces and also
+applies when an individual is officially representing the project.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior
+may be reported to the project owner @ivuorinen.
+
+All complaints will be reviewed and investigated and will result in a
+response that is deemed necessary and appropriate to the circumstances.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][cc],
+version 2.1.
+
+[cc]: https://www.contributor-covenant.org/version/2/1/code_of_conduct/
+
+<!--
+vim: ft=md sw=2 ts=2 tw=72 fo=cqt wm=0 et
+-->
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
new file mode 100644
index 0000000..96aabb9
--- /dev/null
+++ b/.github/CONTRIBUTING.md
@@ -0,0 +1,85 @@
+# Contributing to aeonview
+
+Thanks for your interest in contributing to **aeonview**! This guide will help you get started.
+
+## 🛠 Project Setup
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/your-username/aeonview.git
+   cd aeonview
+   ```
+
+2. Set up your environment:
+   ```bash
+   python3 -m venv venv
+   source venv/bin/activate
+   pip install -r dev-requirements.txt
+   ```
+
+3. Install pre-commit hooks:
+   ```bash
+   pre-commit install
+   ```
+
+## ✅ Development Workflow
+
+- Make sure your changes are **well-tested**.
+- Use `make check` to run linting and tests.
+- Follow the existing coding style (Ruff will enforce it).
+- All new features must include documentation.
+
+## 🧪 Running Tests
+
+```bash
+make test
+```
+
+## 🧹 Formatting & Linting
+
+```bash
+make format   # auto-format code
+make lint     # check for lint errors
+```
+
+## ✅ Submitting a Pull Request
+
+1. Create a feature branch:
+   ```bash
+   git checkout -b feature/my-new-feature
+   ```
+
+2. Commit your changes:
+   ```bash
+   git add .
+   git commit -m "feat: add support for X"
+   ```
+
+3. Push and open a pull request:
+   ```bash
+   git push origin feature/my-new-feature
+   ```
+
+4. Follow the PR template and link any relevant issues.
+
+## 📋 Commit Message Guidelines
+
+Use [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/):
+
+Examples:
+- `feat: add monthly video generation`
+- `fix: handle invalid date error`
+- `docs: update usage instructions`
+
+## 🙏 Code of Conduct
+
+We expect contributors to follow our [Code of Conduct](CODE_OF_CONDUCT.md).
+
+## Questions?
+Feel free to open an issue or start a discussion!
+
+Thanks for helping make Aeonview better 💜
+
+<!--
+vim: ft=md sw=2 ts=2 tw=72 fo=cqt wm=0 et
+-->
diff --git a/.github/renovate.json b/.github/renovate.json
new file mode 100644
index 0000000..336a46f
--- /dev/null
+++ b/.github/renovate.json
@@ -0,0 +1,16 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "github>ivuorinen/renovate-config"
+  ],
+  "packageRules": [
+    {
+      "managers": [
+        "github-actions"
+      ],
+      "schedule": [
+        "daily"
+      ]
+    }
+  ]
+}
diff --git a/.github/workflows/pr-lint.yml b/.github/workflows/pr-lint.yml
new file mode 100644
index 0000000..436386e
--- /dev/null
+++ b/.github/workflows/pr-lint.yml
@@ -0,0 +1,29 @@
+---
+# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
+name: PR Lint
+
+# yamllint disable-line rule:truthy
+on:
+  push:
+    branches: [master, main]
+  pull_request:
+    branches: [master, main]
+
+permissions: read-all
+
+env:
+  TRIVY_SEVERITY: CRITICAL,HIGH
+  DISABLE_LINTERS: GO_GOLANGCI_LINT
+
+jobs:
+  Linter:
+    name: PR Lint
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # only for delete-branch option
+      issues: write
+      pull-requests: write
+      statuses: write
+
+    steps:
+      - uses: ivuorinen/actions/pr-lint@312c00f77fbd73948441c8b004607e098e40c97f # 25.4.8
diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
new file mode 100644
index 0000000..0912983
--- /dev/null
+++ b/.github/workflows/python-tests.yml
@@ -0,0 +1,35 @@
+name: Python tests
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+permissions: read-all
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+    - name: Set up Python
+      uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
+
+    - name: Install dependencies
+      shell: bash
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest pytest-cov ruff
+
+    - name: Run Ruff linting
+      shell: bash
+      run: ruff check .
+
+    - name: Run tests with coverage
+      shell: bash
+      run: |
+        pytest --cov=aeonview --cov-report=term-missing
diff --git a/.gitignore b/.gitignore
index fce81b6..7a4e45f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,8 @@ projects/*
 !projects/.gitkeep
 .vscode
 .coverage
+.pytest_cache
+__pycache__
+.coverage
+.ruff_cache
+.venv
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..c9b0216
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,34 @@
+repos:
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  rev: "v0.11.4"
+  hooks:
+    - id: ruff
+      args: ["--fix"]
+    - id: ruff-format
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v5.0.0
+  hooks:
+    - id: check-ast
+    - id: check-builtin-literals
+    - id: check-docstring-first
+    - id: check-executables-have-shebangs
+    - id: check-json
+    - id: check-merge-conflict
+    - id: check-shebang-scripts-are-executable
+    - id: check-toml
+    - id: check-yaml
+    - id: debug-statements
+    - id: detect-aws-credentials
+    - id: double-quote-string-fixer
+    - id: end-of-file-fixer
+    - id: mixed-line-ending
+    - id: name-tests-test
+    - id: no-commit-to-branch
+    - id: requirements-txt-fixer
+    - id: trailing-whitespace
+- repo: https://github.com/christophmeissner/pytest-pre-commit
+  rev: 1.0.0
+  hooks:
+  - id: pytest
+    pass_filenames: false
+    always_run: true
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..3e388a4
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.13.2
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..560b2f4
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,19 @@
+.PHONY: install format lint test check clean
+
+install:
+	@pip install -r requirements.txt
+
+format:
+	@ruff format .
+
+lint:
+	@ruff check .
+
+test:
+	@pytest --cov=aeonview --cov-report=term-missing
+
+check: lint test
+
+clean:
+	@find . -type d -name '__pycache__' -exec rm -r {} +
+	@rm -rf .pytest_cache .coverage htmlcov
diff --git a/README.md b/README.md
index b8fa28c..112fafa 100644
--- a/README.md
+++ b/README.md
@@ -1,20 +1,96 @@
-	                              _)                
-	   _` |   -_)   _ \    \ \ \ / |   -_) \ \  \ / 
-	 \__,_| \___| \___/ _| _| \_/ _| \___|  \_/\_/  
-	  aeonview - a simple timelapse tool
+```
+                               _)
+    _` |   -_)   _ \    \ \ \ / |   -_) \ \  \ /
+  \__,_| \___| \___/ _| _| \_/ _| \___|  \_/\_/
+   aeonview - a simple timelapse tool
+```
 
-aeonview is a tool for automagical timelapse-video generation. 
-it works as a glue between different linux programs to produce
-videos of elapsing time. works best with webcam-images from the net.
+**aeonview** is a Python-based tool for generating timelapse videos
+from webcam images using `ffmpeg`. It supports automated image
+downloading, video stitching, and is fully scriptable via CLI.
+Includes developer tooling and tests.
 
-sample:
-	http://www.youtube.com/watch?v=SnywvnjHpUk
+[![CI][ci-b]][ci-l] [![ruff][cc-b]][cc-l] [![MIT][lm-b]][lm-l]
 
+Low quality sample: [aeonview 2min preview/Tampere Jan. 2008][sample]
 
-Needed components:
+## Features
 
-*   Python
-*   curl
-*   mencoder
-*   lots of harddrive space
-*   cron
+- Timelapse image capture (`--mode image`)
+- Video generation (`--mode video`)
+- Support for daily, monthly, yearly video runs *(daily implemented)*
+- Uses `ffmpeg` and `curl`
+- Fully tested with `pytest`
+- Linting and formatting via `ruff`
+- Pre-commit hooks and CI-ready
+
+## Requirements
+
+- Python 3.11+
+- `ffmpeg` and `curl` (system tools)
+- lots of hard drive space
+- Optional: `pyenv` for managing Python versions
+  (see `pyenv_requirements`)
+
+## Installation
+
+```bash
+# Clone the repo
+git clone https://github.com/ivuorinen/aeonview.git
+cd aeonview
+
+# Install dependencies
+python3 -m venv venv
+source venv/bin/activate
+pip install -r requirements.txt
+
+# Install pre-commit hooks
+pre-commit install
+```
+
+## Usage
+
+```bash
+# Capture an image
+python aeonview.py \
+  --mode image \
+  --project example \
+  --url "https://example.com/webcam.jpg"
+
+# Generate a video from yesterday's images
+python aeonview.py --mode video --project example
+```
+
+## Development
+
+```bash
+# Format code
+make format
+
+# Lint code
+make lint
+
+# Run tests
+make test
+```
+
+## System Setup for ffmpeg
+
+```bash
+sudo apt update
+sudo apt install ffmpeg curl
+```
+
+## License
+
+MIT License © 2025 Ismo Vuorinen
+
+[ci-b]: https://github.com/ivuorinen/aeonview/actions/workflows/python-tests.yml/badge.svg
+[ci-l]: https://github.com/ivuorinen/aeonview/actions/workflows/python-tests.yml
+[cc-b]: https://img.shields.io/badge/code%20style-ruff-blueviolet
+[cc-l]: https://github.com/astral-sh/ruff
+[lm-b]: https://img.shields.io/badge/License-MIT-yellow.svg
+[lm-l]: https://opensource.org/licenses/MIT
+[sample]: https://www.youtube.com/watch?v=SnywvnjHpUk
+
+<!-- vim: set sw=2 ts=2 tw=72 fo=cqt wm=0 et: -->
diff --git a/aeonview.py b/aeonview.py
old mode 100755
new mode 100644
index 5cd7f70..3e211dd
--- a/aeonview.py
+++ b/aeonview.py
@@ -1,221 +1,460 @@
-import sys, time, datetime, os, optparse, errno, re
+import argparse
+import hashlib
+import logging
+import os
+import subprocess
+import sys
+from datetime import datetime, timedelta
+from pathlib import Path
 
-def aeonview(argv):
-	"""
-	aeonview is a tool for automagical timelapse-video generation.
-	it works as a glue between different linux programs to produce
-	videos of elapsing time. works best with webcam-images from the net.
-	"""
-	version = "0.1.8"
-
-	parser = optparse.OptionParser(
-		usage="Usage: %prog [options]",
-		description="aeonview for timelapses",
-		version="%prog v"+version
-	)
-
-	basicopts = optparse.OptionGroup(
-		parser, "Basic settings", "These effect in both modes."
-	)
-
-	basicopts.add_option("-m", "--mode",
-		default="image",
-		help="run mode: image or video [default: %default]")
-
-	basicopts.add_option("-p", "--project",
-		help="Project name, used as directory name. "
-		"Defaults to 5 characters from md5 hash of the webcam url.",
-		type="string")
-
-	basicopts.add_option("-d", "--dest",
-		help="Start of the destination. [default: %default]",
-		type="string",
-		default=os.getcwdu()+"/projects",
-		dest="path")
-
-	basicopts.add_option("--mencoder",
-		help="Path to mencoder binary. [default: %default]",
-		type="string",
-		default=os.getcwdu()+'/mencoder')
-
-	parser.add_option_group(basicopts)
-
-	# When mode is: image
-	imageopts = optparse.OptionGroup(
-		parser, "Options for --mode: image", "When we are gathering images.")
-
-	imageopts.add_option("--url", help="Webcam URL", type="string")
-
-	parser.add_option_group(imageopts)
-
-	# When mode is: video
-	videoopts = optparse.OptionGroup(parser,
-		"Options for --mode: video", "When we are making movies.")
-
-	videoopts.add_option("--videorun",
-		default="daily",
-		help="Video to process: daily, monthly or yearly [default: %default]",
-		type="string")
-
-	videoopts.add_option('--generate',
-		help="Date to video. Format: YYYY-MM-DD. "
-			"Default is calculated yesterday, currently %default",
-		type="string",
-		default=datetime.date.today()-datetime.timedelta(1))
-
- 	# TODO: mode for monthly videos
-	#videoopts.add_option("--gen-month",
-	#	help="Month to video. Format: YYYY-MM. "
-	#		"Default is last month, currently %default",
-	#	type="string",
-	#	default=datetime.date.today()-datetime.timedelta(30))
-
-	videoopts.add_option("--fps",
-		default="10",
-		help="Frames per second, numeric [default: %default]",
-		type="int")
-
-	parser.add_option_group(videoopts)
-
-	parser.add_option("-v", help="Verbose", action="store_true", dest="verbose", default=False)
-	parser.add_option("-q", help="Quiet", action="store_false", dest="verbose", default=True)
-
-	parser.add_option("-s", "--simulate",
-		help="Demostrates what will happen (good for checking your settings and destinations)",
-		default=False,
-		action="store_true")
-
-	(options, args) = parser.parse_args(argv[1:])
-
-	if options.simulate == True:
-		print
-		print "--- Starting simulation, just echoing steps using your parameters."
-		print
-		print "(!) You are running aeonview from", os.getcwdu()
-
-	if options.mode == 'image':
-		# We are now in the gathering mode.
-
-		if options.url == None and options.simulate == True:
-			options.url = "http://example.com/webcam.jpg"
-			print "(!) Simulation: Using " + options.url + " as webcam url"
-
-		if options.url == None:
-			print "(!) Need a webcam url, not gonna rock before that!"
-			print
-			parser.print_help()
-			sys.exit(-1)
-
-		if options.project == None:
-			import hashlib # not needed before
-			m = hashlib.md5(options.url).hexdigest()
-			options.project = m[:5] # 5 first characters of md5-hash
-			if options.verbose == True or options.simulate == True:
-				print "(!) No project defined, using part of md5-hash of the webcam url:", options.project
-
-		if options.path == None:
-			if options.verbose == True or options.simulate == True:
-				print "(!) No destination defined, using:", options.path
-		else:
-			if options.verbose == True or options.simulate == True:
-				print "(!) Using destination:", options.path
-
-		# If you want to change the path structure, here's your chance.
-		options.imgpath = time.strftime("/img/%Y-%m/%d/")
-		options.imgname = time.strftime("%H-%M-%S")
-
-		# Let us build the destination path and filename
-		options.fileext = os.path.splitext(options.url)[1]
-		options.destdir = options.path + "/" + options.project + options.imgpath
-		options.destination = options.destdir + options.imgname + options.fileext
-		getit = options.url + " -o " + options.destination
-
-		# Crude, but works.
-		if options.simulate == False:
-			os.system("curl --create-dirs --silent %s" % getit)
-		else:
-			print "(!) Simulation: Making path:", options.destdir
-			print "(!) Simulation: curl (--create-dirs and --silent)", getit
-
-	elif options.mode == "video":
-		# We are now in the video producing mode
-
-		vid_extension = ".avi"
-		#m = os.getcwd() + "/mencoder"
-		m = options.mencoder
-		mencoder = m + " -really-quiet -mf fps="+ str(options.fps) +" -nosound -ovc lavc -lavcopts vcodec=mpeg4"
-
-		if options.project == None:
-			print "(!) No project defined, please specify what project you are working on."
-			print
-			parser.print_help()
-			sys.exit(-1)
-
-		if options.videorun == "daily":
-			vid_date = str(options.generate).split("-")
-			year = vid_date[0]
-			month = vid_date[1]
-			day = vid_date[2]
-
-			if check_date(int(year), int(month), int(day)):
-				proj_dir = options.path + "/" + options.project
-				video_dir = proj_dir + "/img/" + year + "-" + month + "/" + day + "/*"
-				video_out_dir = proj_dir + "/vid/" + year + "-" + month + "/"
-				video_out_day = video_out_dir + day + vid_extension
-				mfdir = os.path.dirname(os.path.realpath(video_dir))
-				command = mencoder + " -o " + video_out_day + " 'mf://" + mfdir + "/*'"
-
-				if options.simulate == False:
-					mkdir_p( video_out_dir )
-					os.system(command)
-				else:
-					print "(!) Video dir to process:", video_dir
-					print "(!) Video output-file:", video_out_day
-					print "(!) Made directory structure:", video_out_dir
-					print "(!) Command to run", command
-
-			else:
-				print "(!) Error: check your date. Value provided:", options.generate
-
-		elif options.videorun == "monthly":
-			print "Monthly: TODO"
-			# TODO Monthly script. Joins daily movies of that month.
-
-		elif options.videorun == "yearly":
-			print "Yearly: TODO"
-			# TODO Yearly script. Joins monthly movies together.
-
-		else:
-			print "(!) What? Please choose between -r daily/montly/yearly"
-
-	else:
-		parser.print_help()
-		sys.exit(-1)
+import requests
 
 
-# http://stackoverflow.com/questions/600268/mkdir-p-functionality-in-python/600612#600612
-def mkdir_p(path):
-	try:
-		os.makedirs(path)
-	except OSError as exc: # Python >2.5
-		if exc.errno == errno.EEXIST:
-			pass
-		else: raise
+# Define messages for logging
+# These messages are used for logging purposes and can be customized as needed.
+class AeonViewMessages:
+    INVALID_URL = 'Invalid URL provided.'
+    INVALID_DATE = 'Invalid date format provided.'
+    DOWNLOAD_SUCCESS = 'Image downloaded successfully.'
+    DOWNLOAD_FAILURE = 'Failed to download image.'
+    VIDEO_GENERATION_SUCCESS = 'Video generated successfully.'
+    VIDEO_GENERATION_FAILURE = 'Failed to generate video.'
+    INVALID_IMAGE_FORMAT = 'Invalid image format provided.'
+    INVALID_IMAGE_EXTENSION = 'Invalid image extension provided.'
 
 
-# Modified http://markmail.org/message/k2pxsle2lslrmnut
-def check_date(year, month, day):
-	tup1 = (year, month, day, 0,0,0,0,0,0)
-	try:
-		date = time.mktime (tup1)
-		tup2 = time.localtime (date)
-		if tup1[:2] != tup2[:2]:
-			return False
-		else:
-			return True
-	except OverflowError:
-		return False
+class AeonViewImages:
+    """
+    Class to handle image download and saving.
+
+    This class is responsible for downloading images from a URL and saving them
+    to a specified directory.
+    """
+
+    def __init__(self, project_path: Path, url: str | None, args=None):
+        """
+        Initialize the AeonViewImages class.
+        :param project_path: Path to the project directory
+        :param url: URL of the image to download
+        :param args: Command line arguments passed to the class
+        """
+        self.project_path = project_path or None
+        self.url = url or None
+        self.args = args or {}
+
+    def get_image_paths(
+        self, url: str | None, destination_base: Path | None, date: datetime
+    ) -> dict:
+        """
+        Get image paths for saving the downloaded image.
+        :param url: URL of the image
+        :param destination_base: Base path where the image will be saved
+        :param date: Date for which the image is requested
+        :return: Image object
+        """
+        if url is None or not isinstance(url, str):
+            logging.error(AeonViewMessages.INVALID_URL)
+            sys.exit(1)
+        if not isinstance(date, datetime):
+            logging.error(AeonViewMessages.INVALID_DATE)
+            sys.exit(1)
+        if not url.startswith('http'):
+            logging.error(AeonViewMessages.INVALID_URL)
+            sys.exit(1)
+        if not url.endswith(('.jpg', '.jpeg', '.png', '.gif', '.webp')):
+            logging.error(AeonViewMessages.INVALID_IMAGE_FORMAT)
+            sys.exit(1)
+
+        if destination_base is None:
+            logging.error('No destination base path provided.')
+            sys.exit(1)
+        if not isinstance(destination_base, Path):
+            logging.error('Invalid destination base path.')
+            sys.exit(1)
+
+        year = date.strftime('%Y')
+        month = date.strftime('%m')
+        day = date.strftime('%d')
+
+        year_month = f'{year}-{month}'
+
+        destination = AeonViewHelpers.build_path(destination_base, year_month, day)
+        file_name = date.strftime('%H-%M-%S') + AeonViewHelpers.get_extension(url)
+        destination_file = AeonViewHelpers.build_path(destination, file_name)
+
+        if not destination.exists():
+            if self.args.simulate:
+                logging.info(f'Simulate: would create {destination}')
+            else:
+                AeonViewHelpers.mkdir_p(destination)
+                logging.info(f'Creating destination base path: {destination}')
+
+        return {
+            'url': url,
+            'file': file_name,
+            'date': {
+                'year': year,
+                'month': month,
+                'day': day,
+                'hour': date.strftime('%H'),
+                'minute': date.strftime('%M'),
+                'second': date.strftime('%S'),
+            },
+            'destinations': {
+                'base': destination_base,
+                'year_month': year_month,
+                'day': day,
+                'file': destination_file,
+            },
+        }
+
+    def get_current_image(self):
+        """
+        Download the image from the URL and save it to the project directory.
+        """
+
+        if self.args.date is not None:
+            try:
+                date = datetime.strptime(self.args.date, '%Y-%m-%d %H:%M:%S')
+            except ValueError:
+                logging.error(AeonViewMessages.INVALID_DATE)
+                sys.exit(1)
+        else:
+            date = datetime.now()
+
+        img_path = date.strftime('img/%Y-%m/%d')
+        img_name = date.strftime('%H-%M-%S')
+
+        if self.url is None:
+            logging.error(AeonViewMessages.INVALID_URL)
+            sys.exit(1)
+
+        file_ext = AeonViewHelpers.get_extension(self.url)
+
+        dest_dir = AeonViewHelpers.build_path(self.project_path, img_path)
+        dest_file = AeonViewHelpers.build_path(dest_dir, f'{img_name}{file_ext}')
+
+        logging.info(f'Saving image to {dest_file}')
+
+        if not self.args.simulate:
+            AeonViewHelpers.mkdir_p(dest_dir)
+            self.download_image(dest_file)
+        else:
+            logging.info(f'Simulate: would create {dest_dir}')
+            logging.info(f'Simulate: would download {self.url} to {dest_file}')
+
+    def download_image(self, destination: Path):
+        """
+        Download the image using Python's requests library.
+        :param destination: Path where the image will be saved
+        :return: None
+        """
+
+        if self.url is None:
+            logging.error(AeonViewMessages.INVALID_URL)
+            sys.exit(1)
+
+        if not isinstance(destination, Path):
+            logging.error('Invalid destination path.')
+            sys.exit(1)
+
+        if self.args.simulate is False or self.args.simulate is None:
+            logging.info(f'Downloading image from {self.url}')
+            response = requests.get(self.url, stream=True)
+            if response.status_code == 200:
+                with open(destination, 'wb') as f:
+                    for chunk in response.iter_content(1024):
+                        f.write(chunk)
+                logging.info(f'{AeonViewMessages.DOWNLOAD_SUCCESS}: {destination}')
+            else:
+                logging.error(f'{AeonViewMessages.DOWNLOAD_FAILURE}: {self.url}')
+                sys.exit(1)
+        else:
+            logging.info(f'Simulate: would download {self.url} to {destination}')
+
+
+class AeonViewVideos:
+    """
+    Class to handle video generation and management.
+
+    This class is responsible for generating daily, monthly, and yearly videos.
+    It uses ffmpeg for video processing.
+    """
+
+    def __init__(self, project_path: Path, args=None):
+        """
+        Initialize the AeonViewVideos class.
+        :param project_path: Path to the project directory
+        :param args: Command line arguments passed to the class
+        """
+        self.project_path = project_path
+        self.args = args or {}
+
+        self.args.simulate = args.simulate or False
+        self.args.fps = args.fps or 10
+
+        self.day = args.day or None
+        self.month = args.month or None
+        self.year = args.year or None
+
+        self.path_images = AeonViewHelpers.build_path(self.project_path, 'img')
+        self.path_videos = AeonViewHelpers.build_path(self.project_path, 'vid')
+
+    def generate_daily_video(self):
+        """
+        Generate a daily video from images.
+        """
+
+        year_month = f'{self.year}-{self.month}'
+
+        input_dir = AeonViewHelpers.build_path(self.path_videos, year_month, self.day)
+        output_dir = AeonViewHelpers.build_path(self.path_videos, year_month)
+        output_file = AeonViewHelpers.build_path(output_dir, f'{self.day}.mp4')
+        ffmpeg_cmd = AeonViewHelpers.generate_ffmpeg_command(input_dir, output_file, self.args.fps)
+
+        logging.info(f'Generating video from {input_dir}')
+        logging.info(f'Output file will be {output_file}')
+
+        if not self.args.simulate:
+            logging.info(f'Running ffmpeg command: {" ".join(ffmpeg_cmd)}')
+            if not os.path.exists(input_dir):
+                AeonViewHelpers.mkdir_p(output_dir)
+            subprocess.run(ffmpeg_cmd, check=True)
+            logging.info(f'{AeonViewMessages.VIDEO_GENERATION_SUCCESS}: {output_file}')
+        else:
+            logging.info(f'Simulate: would run {" ".join(ffmpeg_cmd)}')
+
+    def generate_monthly_video(self, output_dir: Path):
+        """
+        Generate a monthly video from images.
+        :param output_dir: Directory where the video will be saved
+        :return: None
+        """
+        raise NotImplementedError('Monthly video generation is not implemented.')
+
+    def generate_yearly_video(self, output_dir: Path):
+        """
+        Generate a yearly video from images.
+        :param output_dir: Directory where the video will be saved
+        :return: None
+        """
+        raise NotImplementedError('Yearly video generation is not implemented.')
+
+
+class AeonViewHelpers:
+    """
+    Helper class for common operations.
+    """
+
+    @staticmethod
+    def check_date(year: int, month: int, day: int) -> bool:
+        """
+        Check if the given year, month, and day form a valid date.
+        :param year: Year to check
+        :param month: Month to check
+        :param day: Day to check
+        :return: True if valid date, False otherwise
+        """
+        try:
+            date = datetime(year, month, day)
+            return date.year == year and date.month == month and date.day == day
+        except ValueError:
+            return False
+
+    @staticmethod
+    def mkdir_p(path: Path):
+        """
+        Create a directory and all parent directories if they do not exist.
+        :param path: Path to the directory to create
+        :return: None
+        """
+        path.mkdir(parents=True, exist_ok=True)
+
+    @staticmethod
+    def build_path(base: Path, *args) -> Path:
+        """
+        Build a path from the base and additional arguments.
+        :param base: Base path
+        :param args: Parts of the path to join
+        :return: Structured and resolved path
+        """
+        return Path(base).joinpath(*args or []).resolve()
+
+    @staticmethod
+    def parse_arguments():
+        """Parse command line arguments."""
+
+        dest_default = str(Path.cwd() / 'projects')
+
+        parser = argparse.ArgumentParser(description='aeonview - timelapse generator using ffmpeg')
+        parser.add_argument('--mode', choices=['image', 'video'], default='image', help='Run mode')
+        parser.add_argument('--project', help='Project name', default='default')
+        parser.add_argument('--dest', default=dest_default, help='Destination root path')
+        parser.add_argument('--url', help='Webcam URL (required in image mode)')
+        parser.add_argument('--fps', type=int, default=10, help='Frames per second')
+        parser.add_argument('--generate', help='Date for video generation (YYYY-MM-DD)')
+        parser.add_argument('--timeframe', choices=['daily', 'monthly', 'yearly'], default='daily')
+        parser.add_argument(
+            '--simulate', action='store_true', help='Simulation mode', default=False
+        )
+        parser.add_argument('--verbose', action='store_true', help='Verbose output', default=False)
+        args = parser.parse_args()
+        return args, parser
+
+    @staticmethod
+    def get_extension(url: str | None) -> str | None:
+        """
+        Get the file extension from the URL.
+        :return: File extension
+        """
+        if url is None:
+            logging.error(AeonViewMessages.INVALID_IMAGE_EXTENSION)
+            return None
+
+        if url.endswith('.png'):
+            return '.png'
+        elif url.endswith('.gif'):
+            return '.gif'
+        elif url.endswith('.webp'):
+            return '.webp'
+        else:
+            return '.jpg'
+
+    @staticmethod
+    def setup_logger(verbose: bool):
+        """
+        Set up the logger for the application.
+        :param verbose: Enable verbose logging if True
+        :return: None
+        """
+        level = logging.DEBUG if verbose else logging.INFO
+        logging.basicConfig(level=level, format='[%(levelname)s] %(message)s')
+
+    @staticmethod
+    def generate_ffmpeg_command(input_dir: Path, output_file: Path, fps: int = 10) -> list:
+        """
+        Generate the ffmpeg command to create a video from images.
+        :param input_dir: Directory containing the images
+        :param output_file: Path to the output video file
+        :param fps: Frames per second for the video
+        :return: Newly created ffmpeg command as a list
+        """
+        return [
+            'ffmpeg',
+            '-framerate',
+            str(fps),
+            '-pattern_type',
+            'glob',
+            '-i',
+            str(input_dir / '*.{jpg,jpeg,png,gif,webp}'),
+            '-c:v',
+            'libx264',
+            '-pix_fmt',
+            'yuv420p',
+            str(output_file),
+        ]
+
+
+class AeonViewApp:
+    """
+    Main application class for AeonView.
+    """
+
+    def __init__(self):
+        self.args, self.parser = AeonViewHelpers.parse_arguments()
+        AeonViewHelpers.setup_logger(self.args.verbose)
+        self.base_path = Path(self.args.dest).resolve()
+
+    def run(self):
+        """
+        Execute the application based on the provided arguments.
+        """
+        if self.args.simulate:
+            logging.info('Simulation mode active. No actions will be executed.')
+
+        if self.args.mode == 'image':
+            self.process_image()
+        elif self.args.mode == 'video':
+            self.process_video()
+
+    def process_image(self):
+        """
+        Process image download and saving based on the provided arguments.
+        """
+        if not self.args.url or self.args.url is None:
+            logging.error('--url is required in image mode')
+            self.parser.print_help()
+            sys.exit(1)
+
+        if not isinstance(self.args.url, str) or not self.args.url.startswith('http'):
+            logging.error(f'{AeonViewMessages.INVALID_URL}: {self.args.url}')
+            sys.exit(1)
+
+        url = self.args.url
+        project = self.args.project or 'default'
+
+        if project == 'default' and url:
+            project = hashlib.md5(url.encode()).hexdigest()[:5]
+
+        project_path = AeonViewHelpers.build_path(self.base_path, project)
+        avi = AeonViewImages(project_path, url, self.args)
+        avi.get_current_image()
+
+    def process_video(self):
+        """
+        Process video generation based on the provided arguments.
+        """
+        if not self.args.project:
+            logging.error('--project is required in video mode')
+            self.parser.print_help()
+            sys.exit(1)
+
+        if not isinstance(self.args.project, str):
+            logging.error(f'Invalid project name: {self.args.project}')
+            sys.exit(1)
+
+        project_path = AeonViewHelpers.build_path(self.base_path, self.args.project)
+
+        if not os.path.exists(project_path):
+            logging.error(f'Project path {project_path} does not exist.')
+            sys.exit(1)
+
+        try:
+            generate_date = (
+                datetime.strptime(self.args.generate, '%Y-%m-%d')
+                if self.args.generate
+                else datetime.today() - timedelta(days=1)
+            )
+        except ValueError:
+            logging.error(AeonViewMessages.INVALID_DATE)
+            sys.exit(1)
+
+        year = generate_date.strftime('%Y')
+        month = generate_date.strftime('%m')
+        day = generate_date.strftime('%d')
+
+        self.args.day = day
+        self.args.month = month
+        self.args.year = year
+
+        if not AeonViewHelpers.check_date(int(year), int(month), int(day)):
+            logging.error(f'Invalid date: {year}-{month}-{day}')
+            sys.exit(1)
+
+        avm = AeonViewVideos(project_path, self.args)
+
+        if self.args.timeframe == 'daily':
+            avm.generate_daily_video()
+        elif self.args.timeframe == 'monthly':
+            output_dir = AeonViewHelpers.build_path(project_path, 'vid', f'{year}-{month}')
+            avm.generate_monthly_video(output_dir)
+        elif self.args.timeframe == 'yearly':
+            output_dir = AeonViewHelpers.build_path(project_path, 'vid', year)
+            avm.generate_yearly_video(output_dir)
 
 
 if __name__ == '__main__':
-	aeonview(sys.argv)
+    app = AeonViewApp()
+    app.run()
+
+# vim: set tw=100 fo=cqt wm=0 et:
diff --git a/aeonview_test.py b/aeonview_test.py
new file mode 100644
index 0000000..5f0abb7
--- /dev/null
+++ b/aeonview_test.py
@@ -0,0 +1,318 @@
+import argparse
+import logging
+import subprocess
+import tempfile
+from pathlib import Path
+from unittest import TestCase, mock
+from datetime import datetime
+
+import pytest
+
+from aeonview import AeonViewHelpers, AeonViewImages, AeonViewVideos, AeonViewMessages
+
+# Define values used in the tests
+default_dest = str(Path.cwd() / 'projects')
+default_project = 'default'
+default_fps = 10
+default_timeframe = 'daily'
+default_simulate = False
+default_verbose = False
+default_image_domain = 'https://example.com/image'
+default_test_path = Path('/tmp/test_project').resolve()
+
+
+# Define the Helpers class with methods to be tested
+class TestHelpers(TestCase):
+    def test_check_date_valid(self):
+        self.assertTrue(AeonViewHelpers.check_date(2023, 12, 31))
+
+    def test_check_date_invalid(self):
+        self.assertFalse(AeonViewHelpers.check_date(2023, 2, 30))
+
+    def test_mkdir_p_creates_directory(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            test_path = Path(tmp) / 'a' / 'b' / 'c'
+            AeonViewHelpers.mkdir_p(test_path)
+            self.assertTrue(test_path.exists())
+            self.assertTrue(test_path.is_dir())
+
+    def test_get_extension_valid(self):
+        self.assertEqual(AeonViewHelpers.get_extension(f'{default_image_domain}.png'), '.png')
+        self.assertEqual(AeonViewHelpers.get_extension(f'{default_image_domain}.jpg'), '.jpg')
+        self.assertEqual(AeonViewHelpers.get_extension(f'{default_image_domain}.gif'), '.gif')
+        self.assertEqual(AeonViewHelpers.get_extension(f'{default_image_domain}.webp'), '.webp')
+
+    def test_get_extension_invalid(self):
+        self.assertEqual(
+            AeonViewHelpers.get_extension(default_image_domain), '.jpg'
+        )  # Default behavior
+        self.assertIsNone(AeonViewHelpers.get_extension(None))
+
+
+class TestFFmpegCommand(TestCase):
+    def test_generate_ffmpeg_command(self):
+        input_dir = Path('/tmp/images')
+        output_file = Path('/tmp/output.mp4')
+        fps = 24
+        cmd = AeonViewHelpers.generate_ffmpeg_command(input_dir, output_file, fps)
+        self.assertIn('ffmpeg', cmd[0])
+        self.assertIn(str(fps), cmd)
+        self.assertEqual(str(output_file), cmd[-1])
+        self.assertIn(str(input_dir / '*.{jpg,jpeg,png,gif,webp}'), cmd)
+
+    def test_generate_ffmpeg_command_output_format(self):
+        input_dir = Path('/tmp/images')
+        output_file = Path('/tmp/video.mp4')
+        cmd = AeonViewHelpers.generate_ffmpeg_command(input_dir, output_file, 30)
+        self.assertIn('/tmp/images/*.{jpg,jpeg,png,gif,webp}', cmd)
+        self.assertIn('/tmp/video.mp4', cmd)
+        self.assertIn('-c:v', cmd)
+        self.assertIn('libx264', cmd)
+        self.assertIn('-pix_fmt', cmd)
+        self.assertIn('yuv420p', cmd)
+
+    @mock.patch('subprocess.run')
+    def test_simulate_ffmpeg_call(self, mock_run):
+        input_dir = Path('/tmp/images')
+        output_file = Path('/tmp/out.mp4')
+        cmd = AeonViewHelpers.generate_ffmpeg_command(input_dir, output_file, 10)
+        subprocess.run(cmd)
+        mock_run.assert_called_once_with(cmd)
+
+
+class TestAeonViewImages(TestCase):
+    def setUp(self):
+        self.args = argparse.Namespace()
+        self.args.simulate = False
+        self.args.date = '2025-04-10 12:30:45'
+        self.args.url = f'{default_image_domain}.jpg'
+        self.args.dest = default_test_path
+        self.args.project = default_project
+        self.args.verbose = default_verbose
+        self.args.fps = default_fps
+        self.args.timeframe = default_timeframe
+        self.project_path = default_test_path
+        self.url = f'{default_image_domain}.jpg'
+
+    def test_get_image_paths_valid(self):
+        url = f'{default_image_domain}.jpg'
+        destination_base = default_test_path
+        date = datetime(2025, 4, 10, 12, 30, 45)
+        paths = AeonViewImages.get_image_paths(self, url, destination_base, date)
+        self.assertEqual(paths['url'], url)
+        self.assertEqual(paths['file'], '12-30-45.jpg')
+        self.assertEqual(
+            paths['destinations']['file'], destination_base / '2025-04' / '10' / '12-30-45.jpg'
+        )
+
+    def test_get_image_paths_invalid_url(self):
+        with pytest.raises(SystemExit):
+            with self.assertLogs(level='ERROR') as log:
+                AeonViewImages.get_image_paths(
+                    self, 'invalid-url', default_test_path, datetime(2025, 4, 10)
+                )
+                self.assertIn(AeonViewMessages.INVALID_URL, log.output[0])
+
+    def test_get_image_paths_invalid_date(self):
+        with pytest.raises(SystemExit):
+            with self.assertLogs(level='ERROR') as log:
+                AeonViewImages.get_image_paths(
+                    self, f'{default_image_domain}.jpg', default_test_path, 'invalid-date'
+                )
+                self.assertIn(AeonViewMessages.INVALID_DATE, log.output[0])
+
+    @mock.patch('aeonview.AeonViewHelpers.mkdir_p')
+    @mock.patch('aeonview.AeonViewImages.download_image')
+    def test_get_current_image(self, mock_download_image, mock_mkdir_p):
+        project_path = default_test_path
+        url = f'{default_image_domain}.jpg'
+        args = argparse.Namespace(simulate=False, date='2025-04-10 12:30:45')
+        avi = AeonViewImages(project_path, url, args)
+        avi.get_current_image()
+        mock_mkdir_p.assert_called()
+        mock_download_image.assert_called()
+
+    @mock.patch('aeonview.requests.get')
+    def test_download_image_success(self, mock_get):
+        mock_response = mock.Mock()
+        mock_response.status_code = 200
+        mock_response.iter_content = mock.Mock(return_value=[b'data'])
+        mock_get.return_value = mock_response
+
+        project_path = default_test_path
+        url = f'{default_image_domain}.jpg'
+        args = argparse.Namespace(simulate=False)
+        avi = AeonViewImages(project_path, url, args)
+        destination = Path('/tmp/image.jpg')
+        avi.download_image(destination)
+
+        mock_get.assert_called_once_with(url, stream=True)
+        self.assertTrue(destination.exists())
+
+    @mock.patch('aeonview.requests.get')
+    def test_download_image_failure(self, mock_get):
+        mock_response = mock.Mock()
+        mock_response.status_code = 404
+        mock_get.return_value = mock_response
+
+        project_path = default_test_path
+        url = f'{default_image_domain}.jpg'
+        args = argparse.Namespace(simulate=False)
+        avi = AeonViewImages(project_path, url, args)
+        destination = Path('/tmp/image.jpg')
+
+        with pytest.raises(SystemExit):
+            with self.assertLogs(level='ERROR') as log:
+                avi.download_image(destination)
+                self.assertIn(AeonViewMessages.DOWNLOAD_FAILURE, log.output[0])
+
+
+class TestAeonViewVideos(TestCase):
+    @mock.patch('aeonview.AeonViewHelpers.mkdir_p')
+    @mock.patch('subprocess.run')
+    def test_generate_daily_video(self, mock_subprocess_run, mock_mkdir_p):
+        project_path = default_test_path
+        args = argparse.Namespace(simulate=False, fps=10, day='01', month='04', year='2025')
+        avv = AeonViewVideos(project_path, args)
+        with self.assertLogs(level='INFO') as log:
+            avv.generate_daily_video()
+            expected_message = f'{AeonViewMessages.VIDEO_GENERATION_SUCCESS}: {default_test_path / "vid/2025-04/01.mp4"}'
+            self.assertIn(expected_message, log.output[-1])  # Ensure it's the last log entry
+        mock_mkdir_p.assert_called()
+        mock_subprocess_run.assert_called()
+
+    @mock.patch('aeonview.AeonViewHelpers.mkdir_p')
+    def test_generate_daily_video_simulate(self, mock_mkdir_p):
+        project_path = default_test_path
+        args = argparse.Namespace(simulate=True, fps=10, day='01', month='04', year='2025')
+        avv = AeonViewVideos(project_path, args)
+        avv.generate_daily_video()
+        mock_mkdir_p.assert_not_called()
+
+    def test_generate_monthly_video_not_implemented(self):
+        project_path = default_test_path
+        args = argparse.Namespace(simulate=False, fps=10, day='01', month='04', year='2025')
+        avv = AeonViewVideos(project_path, args)
+        with pytest.raises(NotImplementedError):
+            avv.generate_monthly_video(Path('/tmp'))
+
+    def test_generate_yearly_video_not_implemented(self):
+        project_path = default_test_path
+        args = argparse.Namespace(simulate=False, fps=10, day='01', month='04', year='2025')
+        avv = AeonViewVideos(project_path, args)
+        with pytest.raises(NotImplementedError):
+            avv.generate_yearly_video(Path('/tmp'))
+
+
+class TestHelpersArguments(TestCase):
+    def setUp(self):
+        self.default_dest = str(Path.cwd() / 'projects')
+
+    @mock.patch(
+        'sys.argv', ['aeonview.py', '--mode', 'image', '--url', f'{default_image_domain}.jpg']
+    )
+    def test_parse_arguments_image_mode(self):
+        args, _ = AeonViewHelpers.parse_arguments()
+        self.assertEqual(args.mode, 'image')
+        self.assertEqual(args.url, f'{default_image_domain}.jpg')
+        self.assertEqual(args.dest, self.default_dest)
+
+    @mock.patch('sys.argv', ['aeonview.py', '--mode', 'video', '--project', f'{default_project}'])
+    def test_parse_arguments_video_mode(self):
+        args, _ = AeonViewHelpers.parse_arguments()
+        self.assertEqual(args.mode, 'video')
+        self.assertEqual(args.project, f'{default_project}')
+        self.assertEqual(args.dest, self.default_dest)
+
+    @mock.patch('sys.argv', ['aeonview.py', '--mode', 'image', '--simulate'])
+    def test_parse_arguments_simulate_mode(self):
+        args, _ = AeonViewHelpers.parse_arguments()
+        self.assertEqual(args.mode, 'image')
+        self.assertTrue(args.simulate)
+
+    @mock.patch('sys.argv', ['aeonview.py', '--mode', 'video', '--fps', '30'])
+    def test_parse_arguments_fps(self):
+        args, _ = AeonViewHelpers.parse_arguments()
+        self.assertEqual(args.mode, 'video')
+        self.assertEqual(args.project, f'{default_project}')
+        self.assertEqual(args.dest, self.default_dest)
+        self.assertEqual(args.fps, 30)
+
+    @mock.patch('sys.argv', ['aeonview.py', '--mode', 'video', '--generate', '2023-10-01'])
+    def test_parse_arguments_generate_date(self):
+        args, _ = AeonViewHelpers.parse_arguments()
+        self.assertEqual(args.mode, 'video')
+        self.assertEqual(args.generate, '2023-10-01')
+
+    @mock.patch('sys.argv', ['aeonview.py', '--mode', 'image', '--verbose'])
+    def test_parse_arguments_verbose(self):
+        args, _ = AeonViewHelpers.parse_arguments()
+        self.assertEqual(args.mode, 'image')
+        self.assertTrue(args.verbose)
+
+    @mock.patch('sys.argv', ['aeonview.py'])
+    def test_parse_arguments_defaults(self):
+        args, _ = AeonViewHelpers.parse_arguments()
+        self.assertEqual(args.mode, 'image')
+        self.assertEqual(args.project, f'{default_project}')
+        self.assertEqual(args.dest, self.default_dest)
+        self.assertEqual(args.fps, 10)
+        self.assertEqual(args.timeframe, 'daily')
+        self.assertFalse(args.simulate)
+        self.assertFalse(args.verbose)
+
+
+class TestAeonViewSimulation(TestCase):
+    @mock.patch('aeonview.AeonViewHelpers.mkdir_p')
+    @mock.patch('aeonview.AeonViewImages.download_image')
+    def test_image_simulation(self, mock_download_image, mock_mkdir_p):
+        args = mock.MagicMock()
+        args.simulate = True
+        args.date = '2025-04-10 12:30:45'
+
+        url = f'{default_image_domain}.jpg'
+        project_path = Path('/tmp/test_project').resolve()
+
+        avi = AeonViewImages(project_path, url, args)
+        with mock.patch('aeonview.logging.info') as mock_logging:
+            avi.get_current_image()
+            mock_mkdir_p.assert_not_called()
+            mock_download_image.assert_not_called()
+            mock_logging.assert_any_call(
+                f'Saving image to {project_path}/img/2025-04/10/12-30-45.jpg'
+            )
+
+    @mock.patch('aeonview.AeonViewHelpers.mkdir_p')
+    @mock.patch('subprocess.run')
+    def test_video_simulation(self, mock_subprocess_run, mock_mkdir_p):
+        args = mock.MagicMock()
+        args.simulate = True
+        args.fps = 10
+        args.day = '01'
+        args.month = '01'
+        args.year = '2023'
+        project_path = Path('/tmp/test_project').resolve()
+
+        avv = AeonViewVideos(project_path, args)
+        with mock.patch('aeonview.logging.info') as mock_logging:
+            avv.generate_daily_video()
+            mock_mkdir_p.assert_not_called()
+            mock_subprocess_run.assert_not_called()
+            mock_logging.assert_any_call(f'Generating video from {project_path}/vid/2023-01/01')
+
+
+class TestSetupLogger(TestCase):
+    @mock.patch('logging.basicConfig')
+    def test_setup_logger_verbose(self, mock_basic_config):
+        AeonViewHelpers.setup_logger(verbose=True)
+        mock_basic_config.assert_called_once_with(
+            level=logging.DEBUG, format='[%(levelname)s] %(message)s'
+        )
+
+    @mock.patch('logging.basicConfig')
+    def test_setup_logger_non_verbose(self, mock_basic_config):
+        AeonViewHelpers.setup_logger(verbose=False)
+        mock_basic_config.assert_called_once_with(
+            level=logging.INFO, format='[%(levelname)s] %(message)s'
+        )
+        mock_basic_config.reset_mock()
diff --git a/conftest.py b/conftest.py
new file mode 100644
index 0000000..b5fc6c1
--- /dev/null
+++ b/conftest.py
@@ -0,0 +1,9 @@
+# conftest.py
+from unittest import mock
+
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def no_network_requests(monkeypatch):
+    monkeypatch.setattr('subprocess.run', mock.Mock())
diff --git a/example.sh b/example.sh
index c0e385c..471411b 100755
--- a/example.sh
+++ b/example.sh
@@ -1,3 +1,5 @@
 #!/bin/sh
 
-python aeonview.py -p abc-la --url http://abclocal.go.com/three/kabc/webcam/web2-1.jpg
+python aeonview.py \
+  -p abc-la \
+  --url http://abclocal.go.com/three/kabc/webcam/web2-1.jpg
diff --git a/mencoder b/mencoder
deleted file mode 100755
index 9e868fb..0000000
Binary files a/mencoder and /dev/null differ
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..581e602
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,24 @@
+[tool.ruff]
+line-length = 100
+target-version = "py311"
+
+[tool.ruff.lint]
+select = ["E", "F", "I", "B", "UP", "C4", "T20"]
+ignore = ["E501"]
+
+[tool.ruff.lint.per-file-ignores]
+"test_*.py" = ["S101"]
+
+[tool.ruff.format]
+quote-style = "single"
+indent-style = "space"
+
+[tool.pytest.ini_options]
+testpaths = ["."]
+python_files = ["*_test.py"]
+
+[tool.pylint.MAIN]
+ignore-patterns='^\.#'
+ignore-paths='^\.#'
+ignore='CVS,.venv'
+disable='attribute-defined-outside-init,invalid-name,missing-docstring,protected-access,too-few-public-methods,format'
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..ca8dab3
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,11 @@
+# Functional requirements
+requests~=2.32.3
+
+# Pre-commit hooks
+pre-commit>=3.5.0
+
+# Testing
+pytest>=8.0.0
+pytest-cov>=4.1.0
+# Linting & formatting
+ruff>=0.3.3