diff --git a/.gitattributes b/.gitattributes
deleted file mode 100644
index dfe0770..0000000
--- a/.gitattributes
+++ /dev/null
@@ -1,2 +0,0 @@
-# Auto detect text files and perform LF normalization
-* text=auto
diff --git a/.gitignore b/.gitignore
index 51ef61a..9a0e9a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
-# Aulavirtuale-dl ignores
-VideoLezioni/
+# bbbdl ignores
+*.json
+*.mp4
 
 # Python ignores
 **/__pycache__/
diff --git a/README.md b/README.md
index f3ade08..2883c0b 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
 # bbbdl
 
 A tool for downloading BigBlueButton meetings
+
+## Installing
+
+```
+pip install bbbdl
+```
\ No newline at end of file
diff --git a/bbbdl/__main__.py b/bbbdl/__main__.py
index 1579766..6dc7013 100644
--- a/bbbdl/__main__.py
+++ b/bbbdl/__main__.py
@@ -1,20 +1,65 @@
+import requests
 import ffmpeg
 import click
+import json
+import os
 from .resources import Meeting
 from .composer import compose_lesson
 
 
-@click.command()
+@click.group()
+def main():
+    pass
+
+
+@main.command()
 @click.option("-i", "--input-url", type=str, prompt=True,
               help="The URL of the meeting to download.")
 @click.option("-o", "--output-file", type=str, prompt=True,
               help="The file the video should be written to.")
-def download(input_url, output_file):
+@click.option("-O", "--overwrite", is_flag=True,
+              help="Overwrite existing files instead of skipping them.")
+@click.option("-v", "--verbose-ffmpeg", is_flag=True,
+              help="Print ffmpeg info to stderr.")
+def download(input_url, output_file, overwrite=False, verbose_ffmpeg=False):
+    if not overwrite and os.path.exists(output_file):
+        raise click.ClickException(f"Output file already exists: {output_file}")
+
+    click.echo(f"Downloading: {input_url} -> {output_file}", err=True)
+
     meeting = Meeting.from_url(input_url)
     streams = compose_lesson(meeting)
     output = ffmpeg.output(*streams, output_file)
-    output.run()
+
+    output.run(quiet=not verbose_ffmpeg, overwrite_output=True)
+
+
+@main.command()
+@click.option("-f", "--file", type=click.File(),
+              help="The JSON file containing the files to download.")
+@click.option("-r", "--remote-file", type=str,
+              help="The URL where the JSON file containing the files to download can be fetched.")
+@click.option("-O", "--overwrite", is_flag=True,
+              help="Overwrite existing files instead of skipping them.")
+@click.option("-v", "--verbose-ffmpeg", is_flag=True,
+              help="Print ffmpeg info to stderr.")
+@click.pass_context
+def sync(ctx: click.Context, file=None, remote_file=None, overwrite=False, verbose_ffmpeg=False):
+    if file:
+        click.echo(f"Syncing from local file: {file.name}", err=True)
+        j = json.load(file)
+    elif remote_file:
+        click.echo(f"Syncing from remote file: {remote_file}", err=True)
+        j = requests.get(remote_file).json()
+    else:
+        raise click.ClickException("No JSON file was specified.")
+
+    for output_file, input_url in j.items():
+        try:
+            ctx.invoke(download, input_url=input_url, output_file=output_file, overwrite=overwrite, verbose_ffmpeg=verbose_ffmpeg)
+        except click.ClickException:
+            click.echo(f"Skipped: {input_url} -> {output_file}", err=True)
 
 
 if __name__ == "__main__":
-    download()
+    main()
diff --git a/pyproject.toml b/pyproject.toml
index ce7ab34..d30f925 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,10 +1,10 @@
 [tool.poetry]
 name = "bbbdl"
-version = "0.1.0"
+version = "1.0.0"
 description = "A downloader for BigBlueButton meetings"
 authors = [
+    "Stefano Pigozzi <ste.pigozzi@gmail.com>",
     "g.minoccari <g.minoccari@gmail.com>",
-    "Stefano Pigozzi <ste.pigozzi@gmail.com>"
 ]
 license = "AGPL-3.0-or-later"