The slot cap merged from master defaults to 2 uploads, and the CLI capped downloads at 5. Those are the numbers you pick when your own bandwidth is the scarce resource, but a Soulseek transfer is paced by the peer on the other end — usually a few hundred KiB/s — so what fills a modern link is many transfers at once, not faster ones. Upload slots go to 10, downloads to 20. The queue itself stays: privileged users being able to jump it is a condition of being a tolerated third-party client. serve_file also slept half a second after the last byte so the downloader could drain before the socket closed. With a cap that is time no other peer can use, and 64 uploads over 10 slots paid it six times over. A half-close says "that is the whole file" and TCP still delivers everything written before the FIN. Measured with 64 waiting peers: 2 slots 24.2s, 8 slots 6.2s, 32 slots 3.1s; at 10 slots the linger alone was 5.4s to 3.05s.
soulseek-rs
A Soulseek client for the terminal: a full-screen TUI, and a one-shot command surface built for scripts and agents.
Website: https://re-invention.nl/soulseek-rs/
Installation
brew install michel/tap/soulseek-rs # macOS and Linux, prebuilt
cargo install soulseek-rs # anywhere with a Rust toolchain
Usage
Run it with no subcommand for the interactive TUI:
soulseek-rs
Anything else is a one-shot command that runs headless. stdout carries records only, stderr carries progress, and the exit code carries the verdict:
soulseek-rs search <QUERY> # print matching files
soulseek-rs get <QUERY> # search, pick the best, download
soulseek-rs download <USER> <PATH> # fetch one known file
soulseek-rs download --stdin # fetch files listed on stdin
soulseek-rs browse <USER> # list a user's shared files
soulseek-rs serve [--follow] # stay online sharing, stream uploads
soulseek-rs whoami # confirm credentials and connection
soulseek-rs user <NAME> # a peer's status and share counts
soulseek-rs room list|say|users|listen
soulseek-rs message send|read
soulseek-rs shares list|add|remove|status|reindex
soulseek-rs config path|list|get|set
soulseek-rs portmap # test automatic port mapping
soulseek-rs completions install # tab completion for bash/zsh/fish
Add --json for newline-delimited JSON instead of tab-separated text, so
commands compose:
soulseek-rs search "rjd2" --json \
| jq -c 'select(.size > 5000000 and .free_slot)' \
| soulseek-rs download --stdin
Exit codes: 0 success, 2 usage or config, 3 connect or login, 4 nothing
found, 5 timed out, 6 transfer failed, 7 session lost mid-command, 1
unexpected error.
The full README documents every
command, record shape, flag, environment variable and config.toml key.
Building from Source
git clone https://github.com/michel/soulseek-rs.git
cd soulseek-rs
cargo build --release
Library
To build your own Soulseek client, use the soulseek-rs-lib crate: the protocol implementation this client is built on.