diff --git a/sheets/filen b/sheets/filen
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index 0000000..65bf63c
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+++ b/sheets/filen
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+# filen
+# Command-line interface for Filen, an end-to-end encrypted cloud storage provider.
+# All data is encrypted client-side before transmission.
+
+# Authentication and configuration
+# Log in interactively with email and password
+filen
+
+# Log in using non-interactive CLI flags
+filen --email <email> --password <password> [--two-factor-code <2fa>]
+
+# Show the currently authenticated account
+filen whoami
+
+# Export auth config to bypass login requests in clustered or server setups
+filen export-auth-config
+
+# Remove saved credentials from the local machine
+filen logout
+
+# Navigation and information
+# List files and directories in the root drive
+filen ls
+
+# List a specific remote path with detailed metadata (size, modification date)
+filen ls --long /Documents
+
+# Show drive storage limits and usage statistics
+filen statfs
+
+# Display detailed metadata for a specific file or directory
+filen stat /remote/file.txt
+
+# Print the contents of a remote file to standard output
+filen cat /remote/file.txt
+
+# Print the first or last 20 lines of a remote file
+filen head /remote/file.txt -n 20
+filen tail /remote/file.txt -n 20
+
+# List recently accessed files or favourited items
+filen recents
+filen favorites
+
+# Uploading and downloading
+# Upload a local file to a remote directory
+filen upload ./file.txt /remote/path/
+
+# Upload a local file and rename it on the destination
+filen upload report.pdf /Documents/Q1-Report.pdf
+
+# Upload multiple files using a shell glob pattern
+filen upload *.log /Logs/
+
+# Write plain text directly into a remote file
+filen write /remote/notes.txt "content string"
+
+# Download a remote file to a local destination
+filen download /remote/file.txt ./localfile.txt
+
+# Download a remote directory to the current working directory
+filen download /Backups/project .
+
+# File operations
+# Create a new remote directory structure
+filen mkdir /Documents/2026/Q1
+
+# Copy a remote file or directory to a new remote location
+filen cp /remote/source.txt /remote/backup.txt
+
+# Move or rename a remote file or directory
+filen mv /remote/old-name.txt /remote/new-name.txt
+
+# Delete a remote file or directory (moves to trash by default)
+filen rm /remote/file.txt
+
+# Permanently delete a remote item, bypassing the trash
+filen rm /remote/file.txt --no-trash
+
+# Download, open in the local default editor, and re-upload on save
+filen edit /remote/file.txt
+
+# Export all encrypted notes to a local directory
+filen export-notes ~/filen-notes
+
+# Synchronisation
+# Run an inline two-way sync between a local and remote path
+filen sync /local/path:/remote/path
+
+# Run a one-way local-to-cloud (push) sync
+filen sync /local/path:ltc:/remote/path
+
+# Run a one-way cloud-to-local (pull) sync
+filen sync /local/path:ctl:/remote/path
+
+# Run a continuous two-way sync loop
+filen sync /local/path:/remote/path --continuous
+
+# Execute all configured sync pairs defined in ~/.config/filen-cli/syncPairs.json
+filen sync
+
+# Execute a specific sync pair by its configured alias
+filen sync <alias>
+
+# Network mount and server gateways
+# Mount the Filen drive as a local filesystem (requires FUSE3)
+filen mount /mnt/filen
+
+# Unmount the local filesystem mount
+fusermount3 -u /mnt/filen
+
+# Start a single-user local WebDAV server
+filen webdav --w-user <user> --w-password <password> --w-port 8080
+
+# Start a multi-user WebDAV proxy server
+filen webdav-proxy --w-port 1900
+
+# Start a local S3-compatible server mirroring the drive
+filen s3 --s3-access-key-id <id> --s3-secret-access-key <key> --s3-port 9000
+
+# Trash and sharing management
+# List all items currently in the trash
+filen trash
+
+# Restore or permanently delete a specific trash item
+filen trash restore
+filen trash delete
+
+# Empty the trash completely
+filen trash empty
+
+# List all active public shared links
+filen links
+
+# Create, view, or manage a public link for a specific path
+filen links /remote/path
+
+# Maintenance
+# Update the CLI binary to the latest stable release
+filen install latest
+
+# Toggle switching to experimental canary releases
+filen canary
diff --git a/sheets/rsync b/sheets/rsync
new file mode 100644
index 0000000..f845754
--- /dev/null
+++ b/sheets/rsync
@@ -0,0 +1,91 @@
+# rsync
+# Fast, versatile, remote and local file copying and synchronisation tool.
+
+# Basic and archive synchronisation
+# Copy files locally while preserving permissions, timestamps, symlinks, and ownership
+rsync -a /path/to/source /path/to/destination
+
+# Synchronise with verbose output, human-readable file sizes, and per-file progress
+rsync -avh --progress /path/to/source /path/to/destination
+
+# Perform a dry run to preview what would be transferred or deleted without altering the destination
+rsync -avn /path/to/source /path/to/destination
+
+# Trailing slash rules
+# Copy the directory itself into the destination (creates /destination/source/...)
+rsync -a /path/to/source /path/to/destination
+
+# Copy only the contents of the directory into the destination (creates /destination/...)
+rsync -a /path/to/source/ /path/to/destination
+
+# Remote transfers over SSH
+# Synchronise a local directory to a remote host over SSH with data compression
+rsync -avz /local/path/ user@remote.host:/remote/path/
+
+# Pull a remote directory to a local destination using a non-default SSH port
+rsync -av -e "ssh -p 2222" user@remote.host:/remote/path/ /local/path/
+
+# Use a specific SSH private key for automated or unattended transfers
+rsync -av -e "ssh -i ~/.ssh/backup_key" /local/path/ user@remote.host:/remote/path/
+
+# Mirroring and deletion
+# Mirror a source directory, deleting files on the destination that no longer exist on the source
+rsync -av --delete /path/to/source/ /path/to/destination/
+
+# Delete excluded files on the destination and cap total deletions to prevent accidental data loss
+rsync -av --delete --delete-excluded --max-delete=100 /path/to/source/ /path/to/destination/
+
+# Exclusions and filtering
+# Exclude specific files or subdirectories using glob patterns
+rsync -av --exclude='*.tmp' --exclude='node_modules/' /path/to/source/ /path/to/destination/
+
+# Read exclusion patterns from a plain text file (one pattern per line)
+rsync -av --exclude-from='.rsyncignore' /path/to/source/ /path/to/destination/
+
+# Advanced metadata preservation
+# Preserve hard links, POSIX ACLs, and extended filesystem attributes (including SELinux contexts)
+rsync -aHAX /path/to/source/ /path/to/destination/
+
+# Performance and network tuning
+# Limit network bandwidth consumption to 2000 KiB/s
+rsync -av --bwlimit=2000 /path/to/source/ /path/to/destination/
+
+# Disable the delta algorithm and transfer entire files (faster on high-speed local networks)
+rsync -av --whole-file /path/to/source/ /path/to/destination/
+
+# Retain partially transferred files and show progress to resume interrupted migrations
+rsync -avP /path/to/source/ /path/to/destination/
+
+# Hard link snapshots (incremental backups)
+# Create a space-efficient snapshot by hard-linking unchanged files against the previous backup
+rsync -a --delete --link-dest=/backup/yesterday/ /home/user/ /backup/today/
+
+# Daemon mode connections
+# Connect to an unencrypted rsync daemon module over TCP port 873
+rsync -av /local/path/ rsync://user@daemon.host/module_name/
+
+# Tunnel rsync daemon protocol traffic through an SSH port forward for security
+rsync -av /local/path/ rsync://localhost:8730/module_name/
+
+# Verbose debugging and transfer resumption
+# Synchronise with extra verbosity (-vv) to inspect skipped files and protocol debugging details, while retaining partial transfers and showing progress (-P)
+rsync -avvP /path/to/source/ /path/to/destination/
+
+# Perform a dry run with double verbosity to see exactly why individual files are being included or skipped
+rsync -avvn /path/to/source/ /path/to/destination/
+
+# Advanced SSH transport options
+# Connect through an intermediate SSH jump host (bastion server)
+rsync -av -e "ssh -J jumpuser@jumphost.example.com" /path/to/source/ targetuser@targethost:/remote/path/
+
+# Specify a custom SSH configuration file for complex remote routing or aliases
+rsync -av -e "ssh -F /path/to/custom_ssh_config" /path/to/source/ user@remote.host:/remote/path/
+
+# Bypass strict host key checking for automated scripts in ephemeral CI/CD environments
+rsync -av -e "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null" /path/to/source/ user@remote.host:/remote/path/
+
+# Specify a faster SSH cipher to reduce CPU overhead on high-speed, trusted local networks
+rsync -av -e "ssh -c aes128-gcm@openssh.com" /path/to/source/ user@remote.host:/remote/path/
+
+# Limit SSH connection attempts with a strict timeout (in seconds) to prevent scripts from hanging
+rsync -av -e "ssh -o ConnectTimeout=10" /path/to/source/ user@remote.host:/remote/path/
diff --git a/sheets/tar b/sheets/tar
index 1b3b568..06edd96 100644
--- a/sheets/tar
+++ b/sheets/tar
@@ -20,3 +20,19 @@ tar --delete -f xdm_edited.tar.gz xdm
 #
 # If a destination (path given to `-C`) is not provided, the CWD will be used.
 tar -C /mnt -xvf Tarball.tar
+
+# Create a ZSTD compressed archive
+# create an archive using the built-in zstd flag
+tar --zstd -cf archive.tar.zst path/to/directory/
+
+# Create a multi threaded ZSTD archive
+# use all available cpu cores for faster compression on large datasets
+tar -I 'zstd -T0' -cf archive.tar.zst path/to/directory/
+
+# Create an ultra compressed ZSTD archive
+# apply maximum compression level and long distance matching for archival storage
+tar -I 'zstd --ultra -22 --long' -cf archive.tar.zst path/to/directory/
+
+# LIST ARCHIVE CONTENTS WITH AUTO COMPRESSION
+# select the decompression method automatically from the file extension
+tar -atf archive.tar.zst