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.TH "RIO" "1" "2025-07-23"
.PP
.SH NAME
.PP
Rio - A cross-platform, GPU-accelerated terminal emulator.\&
.PP
.SH SYNOPSIS
.PP
Rio is a modern terminal emulator built with Rust and WebGPU that provides high performance rendering with support for modern terminal features including sixel graphics, hyperlinks, and custom shaders.\&
.PP
.SH FLAGS
.PP
\fB-h, --help\fR
.PP
.RS 4
Prints help information.\&
.PP
.RE
\fB-V, --version\fR
.PP
.RS 4
Prints version information.\&
.PP
.RE
.SH OPTIONS
.PP
\fB-e, --command\fR \fI<COMMAND>.\&.\&.\&\fR
.PP
.RS 4
Command and args to execute (must be last argument).\&
.PP
.RE
\fB-w, --working-dir\fR \fI<WORKING_DIR>\fR
.PP
.RS 4
Start the shell in the specified working directory.\&
.PP
.RE
\fB--write-config\fR \fI[<PATH>]\fR
.PP
.RS 4
Writes the config to a given path or the default location.\&
.PP
Rio doesn'\&t create the config file for you, but it looks for one in the
following locations on UNIX systems:
.PP
.RS 4
.PD 0
.IP 1. 4
\fI$RIO_CONFIG_HOME/config.\&toml\fR
.IP 2. 4
\fI$XDG_CONFIG_HOME/rio/config.\&toml\fR
.IP 3. 4
\fI$HOME/.\&config/rio/config.\&toml\fR
.PD
.PP
.RE
On Windows, the config file will be looked for in:
.PP
.RS 4
.PD 0
.IP 1. 4
\fI%USERPROFILE%\eAppData\eLocal\erio\econfig.\&toml\fR
.PD
.PP
.RE
.RE
\fB--enable-log-file\fR
.PP
.RS 4
Writes the logs to a file inside the config directory.\&
.PP
.RE
\fB--title-placeholder\fR \fI<TITLE>\fR
.PP
.RS 4
Start window with specified title.\&
.PP
.RE
.SH CONFIGURATION
.PP
Rio uses TOML format for configuration.\& The configuration file is automatically
reloaded when changed.\& See \fBrio\fR(5) for detailed configuration documentation.\&
.PP
.SH FEATURES
.PP
Rio supports many modern terminal features:
.PP
.PD 0
.IP \(bu 4
GPU-accelerated rendering with WebGPU
.IP \(bu 4
Sixel graphics protocol
.IP \(bu 4
iTerm2 image protocol
.IP \(bu 4
Kitty keyboard protocol
.IP \(bu 4
Hyperlinks (OSC 8)
.IP \(bu 4
Vi mode for navigation
.IP \(bu 4
Split panels
.IP \(bu 4
Custom shaders (RetroArch compatible)
.IP \(bu 4
Adaptive themes
.IP \(bu 4
Font ligatures
.IP \(bu 4
Wide color gamut support
.PD
.PP
.SH ENVIRONMENT
.PP
\fBRIO_CONFIG_HOME\fR
.PP
.RS 4
Custom path for Rio configuration directory.\& When set, Rio will look for
configuration files in this directory instead of the default locations.\&
.PP
.RE
.SH SEE ALSO
.PP
\fBrio\fR(5)
.PP
.SH BUGS
.PP
Found a bug?\& Please report it at \fIhttps://github.\&com/raphamorim/rio/issues\fR.\&
.PP
.SH MAINTAINERS
.PP
.PD 0
.IP \(bu 4
Raphael Amorim <rapha@raphamorim.\&io>