path: root/catgirl.1

.Dd February  3, 2022
.Dt CATGIRL 1
.Os
.
.Sh NAME
.Nm catgirl
.Nd IRC client
.
.Sh SYNOPSIS
.Nm
.Op Fl KRelqv
.Op Fl C Ar copy
.Op Fl H Ar hash
.Op Fl I Ar highlight
.Op Fl N Ar notify
.Op Fl O Ar open
.Op Fl S Ar bind
.Op Fl T Ns Op Ar timestamp
.Op Fl a Ar plain
.Op Fl c Ar cert
.Op Fl h Ar host
.Op Fl i Ar ignore
.Op Fl j Ar join
.Op Fl k Ar priv
.Op Fl m Ar mode
.Op Fl n Ar nick
.Op Fl p Ar port
.Op Fl r Ar real
.Op Fl s Ar save
.Op Fl t Ar trust
.Op Fl u Ar user
.Op Fl w Ar pass
.Op Ar config ...
.
.Nm
.Fl o
.Op Fl S Ar bind
.Op Fl h Ar host
.Op Fl p Ar port
.Op Ar config ...
.
.Nm
.Fl g Ar cert
.
.Sh DESCRIPTION
The
.Nm
IRC client
provides a curses interface
for TLS-only
Internet Relay Chat.
The only required option is
.Fl h ,
the host name to connect to.
See
.Sx EXAMPLES
for managing further configuration.
Type
.Ic /help
in
.Nm
to view the list of
.Sx COMMANDS
and
.Sx KEY BINDINGS .
.
.Pp
Options can be loaded from files
listed on the command line.
Files are searched for in
.Pa $XDG_CONFIG_DIRS/catgirl
.Po
usually
.Pa ~/.config/catgirl
.Pc
unless the path starts with
.Ql / ,
.Ql \&./
or
.Ql \&../ .
Files and flags listed later
on the command line
take precedence over
those listed earlier.
.
.Pp
Each option is placed on a line,
and lines beginning with
.Ql #
are ignored.
The options are listed below
following their corresponding flags.
.
.Bl -tag -width Ds
.It Fl C Ar util | Cm copy No = Ar util
Set the utility used by
.Ic /copy .
Subsequent
.Cm copy
options append arguments to
.Ar util .
The URL to copy is provided to
.Ar util
on standard input.
The default is the first available of
.Xr pbcopy 1 ,
.Xr wl-copy 1 ,
.Xr xclip 1 ,
.Xr xsel 1 .
.
.It Fl H Ar seed,bound | Cm hash No = Ar seed,bound
Set the initial seed
of the nick and channel
color hash function
and the maximum IRC color value
produced by the function.
The default is 0,75.
To use only colors from
the 16-color terminal set,
use 0,15.
To disable nick and channel colors,
use 0,0.
.
.It Fl I Ar pattern | Cm highlight No = Ar pattern
Add a case-insensitive message highlight pattern,
which may contain
.Ql * ,
.Ql \&?
and
.Ql []
wildcards as in
.Xr glob 7 .
The format of the pattern is as follows:
.Bd -ragged -offset indent
.Ar nick Ns Op Ar !user@host Op Ar command Op Ar channel Op Ar message
.Ed
.Pp
The commands which can be matched are:
.Sy INVITE ,
.Sy JOIN ,
.Sy NICK ,
.Sy NOTICE ,
.Sy PART ,
.Sy PRIVMSG ,
.Sy QUIT ,
.Sy SETNAME .
.
.It Fl K | Cm kiosk
Disable the
.Ic /copy ,
.Ic /debug ,
.Ic /exec ,
.Ic /join ,
.Ic /list ,
.Ic /msg ,
.Ic /open ,
.Ic /part ,
.Ic /query ,
.Ic /quote
commands.
Replace the username
with a hash of its original value.
.
.It Fl N Ar util | Cm notify No = Ar util
Send notifications using a utility.
Subsequent
.Cm notify
options append arguments to
.Ar util .
The window name and message
are provided to
.Ar util
as two additional arguments,
appropriate for
.Xr notify-send 1 .
.
.It Fl O Ar util | Cm open No = Ar util
Set the utility used by
.Ic /open .
Subsequent
.Cm open
options append arguments to
.Ar util .
The URL to open is provided to
.Ar util
as an argument.
The default is the first available of
.Xr open 1 ,
.Xr xdg-open 1 .
.
.It Fl R | Cm restrict
Disable the
.Ic /copy ,
.Ic /exec
and
.Ic /open
commands,
the
.Cm notify
option,
and viewing this manual with
.Ic /help .
.
.It Fl S Ar host | Cm bind No = Ar host
Bind to source address
.Ar host
when connecting to the server.
.
.It Fl T Ns Oo Ar format Oc | Cm timestamp Op = Ar format
Show timestamps by default,
in the specified
.Xr strftime 3
.Ar format .
The format string may contain
raw IRC formatting codes.
The default format is
.Qq \&%X .
.
.It Fl a Ar user : Ns Ar pass | Cm sasl-plain No = Ar user : Ns Ar pass
Authenticate as
.Ar user
with
.Ar pass
using SASL PLAIN.
Since this requires the account password
in plain text,
it is recommended to use CertFP instead.
See
.Sx Configuring CertFP .
.
.It Fl c Ar path | Cm cert No = Ar path
Load the TLS client certificate from
.Ar path .
The
.Ar path
is searched for in the same manner
as configuration files.
If the private key is in a separate file,
it is loaded with
.Cm priv .
With
.Cm sasl-external ,
authenticate using SASL EXTERNAL.
Certificates can be generated with
.Fl g .
.
.It Fl e | Cm sasl-external
Authenticate using SASL EXTERNAL,
also known as CertFP.
The TLS client certificate is loaded with
.Cm cert .
See
.Sx Configuring CertFP .
.
.It Fl g Ar path
Generate a TLS client certificate using
.Xr openssl 1
and write it to
.Ar path .
.
.It Fl h Ar host | Cm host No = Ar host
Connect to
.Ar host .
.
.It Fl i Ar pattern | Cm ignore No = Ar pattern
Add a case-insensitive message ignore pattern,
which may contain
.Ql * ,
.Ql \&?
and
.Ql []
wildcards as in
.Xr glob 7 .
The format of the pattern is as follows:
.Bd -ragged -offset indent
.Ar nick Ns Op Ar !user@host Op Ar command Op Ar channel Op Ar message
.Ed
.Pp
The commands which can be matched are:
.Sy INVITE ,
.Sy JOIN ,
.Sy NICK ,
.Sy NOTICE ,
.Sy PART ,
.Sy PRIVMSG ,
.Sy QUIT ,
.Sy SETNAME .
.
.It Fl j Ar channels Oo Ar keys Oc | Cm join No = Ar channels Oo Ar keys Oc
Join the comma-separated list of
.Ar channels
with the optional comma-separated list of channel
.Ar keys .
.
.It Fl k Ar path | Cm priv No = Ar priv
Load the TLS client private key from
.Ar path .
The
.Ar path
is searched for in the same manner
as configuration files.
.
.It Fl l | Cm log
Log chat events to files in paths
.Pa $XDG_DATA_HOME/catgirl/log/network/channel/YYYY-MM-DD.log .
.
.It Fl m Ar mode | Cm mode No = Ar mode
Set the user
.Ar mode .
.
.It Fl n Ar nick | Cm nick No = Ar nick
Set nickname to
.Ar nick .
The default nickname is
the value of the environment variable
.Ev USER .
.
.It Fl o
Print the server certificate chain
to standard output in PEM format
and exit.
.
.It Fl p Ar port | Cm port No = Ar port
Connect to
.Ar port .
The default port is 6697.
.
.It Fl q | Cm quiet
Raise the default message visibility threshold
for new windows,
hiding general events.
.
.It Fl r Ar real | Cm real No = Ar real
Set realname to
.Ar real .
The default realname is the same as the nickname.
.
.It Fl s Ar name | Cm save No = Ar name
Save and load the contents of windows from
.Ar name
in
.Pa $XDG_DATA_DIRS/catgirl ,
or an absolute or relative path if
.Ar name
starts with
.Ql / ,
.Ql \&./ ,
or
.Ql \&../ .
.
.It Fl t Ar path | Cm trust No = Ar path
Trust the self-signed certificate
loaded from
.Ar path
and disable server name verification.
The
.Ar path
is searched for in the same manner
as configuration files.
See
.Sx Connecting to Servers with Self-signed Certificates .
.
.It Fl u Ar user | Cm user No = Ar user
Set username to
.Ar user .
The default username is the same as the nickname.
.
.It Fl v | Cm debug
Log raw IRC messages to the
.Sy <debug>
window
as well as standard error
if it is not a terminal.
.
.It Fl w Ar pass | Cm pass No = Ar pass
Log in with the server password
.Ar pass .
.El
.
.Ss Configuring CertFP
.Bl -enum
.It
Generate a new TLS client certificate:
.Bd -literal -offset indent
$ catgirl -g ~/.config/catgirl/example.pem
.Ed
.It
Connect to the server using the certificate:
.Bd -literal -offset indent
cert = example.pem
# or: $ catgirl -c example.pem
.Ed
.It
Identify with services or use
.Cm sasl-plain ,
then add the certificate fingerprint
to your account:
.Bd -literal -offset indent
/ns CERT ADD
.Ed
.It
Enable SASL EXTERNAL
to require successful authentication
when connecting
(not possible on all networks):
.Bd -literal -offset indent
cert = example.pem
sasl-external
# or: $ catgirl -e -c example.pem
.Ed
.El
.
.Ss Connecting to Servers with Self-signed Certificates
.Bl -enum
.It
Connect to the server
and write its certificate to a file:
.Bd -literal -offset indent
$ catgirl -o -h irc.example.org > ~/.config/catgirl/example.pem
.Ed
.It
Configure
.Nm
to trust the certificate:
.Bd -literal -offset indent
trust = example.pem
# or: $ catgirl -t example.pem
.Ed
.El
.
.Sh COMMANDS
Any unique prefix can be used to abbreviate a command.
For example,
.Ic /join
can be typed
.Ic /j .
.
.Ss Chat Commands
.Bl -tag -width Ds
.It Ic /away Op Ar message
Set or clear your away status.
.It Ic /cs Ar command
Send a command to ChanServ.
.It Ic /invite Ar nick
Invite a user to the channel.
.It Ic /join Op Ar channel Op Ar key
Join the named channel,
the current channel,
or the channel you've been invited to.
.It Ic /list Op Ar channel
List channels.
.It Ic /me Op Ar action
Send an action message.
.It Ic /msg Ar nick message
Send a private message.
.It Ic /names
List users in the channel.
.It Ic /nick Ar nick
Change nicknames.
.It Ic /notice Ar message
Send a notice.
.It Ic /ns Ar command
Send a command to NickServ.
.It Ic /ops
List channel operators.
.It Ic /part Op Ar message
Leave the channel.
.It Ic /query Ar nick
Start a private conversation.
.It Ic /quit Op Ar message
Quit IRC.
.It Ic /quote Ar command
Send a raw IRC command.
The
.Ic /debug
command is likely needed
for command output.
.It Ic /say Ar message
Send a regular message.
.It Ic /setname Ar name
Update realname
if supported by the server.
.It Ic /topic Op Ar topic
Show or set the topic of the channel.
Press
.Ic Tab
twice to copy the current topic.
.It Ic /whois Op Ar nick
Query information about a user or yourself.
.It Ic /whowas Ar nick
Query past information about a user.
.El
.
.Ss UI Commands
.Bl -tag -width Ds
.It Ic /close Op Ar name | num
Close the named, numbered or current window.
.It Ic /copy Op Ar nick | substring
Copy the most recent URL from
.Ar nick
or matching
.Ar substring .
.It Ic /debug
Toggle logging in the
.Sy <debug>
window.
.It Ic /exec Ar command
Run
.Ar command
with
.Ev SHELL
and interpret its output
as input to the current window,
including as commands.
.It Ic /help
View this manual.
Type
.Ic q
to return to
.Nm .
.It Ic /help Ar topic
List the server help for a topic.
Try
.Ic /help index
for a list of topics.
.It Ic /highlight Op Ar pattern
List message highlight patterns
or temporarily add a pattern.
To permanently add a pattern,
use the
.Cm highlight
option.
.It Ic /ignore Op Ar pattern
List message ignore patterns
or temporarily add a pattern.
To permanently add a pattern,
use the
.Cm ignore
option.
.It Ic /move Oo Ar name Oc Ar num
Move the named or current window to number.
.It Ic /open Op Ar count
Open each of
.Ar count
most recent URLs.
.It Ic /open Ar nick | substring
Open the most recent URL from
.Ar nick
or matching
.Ar substring .
.It Ic /unhighlight Ar pattern
Temporarily remove a message highlight pattern.
.It Ic /unignore Ar pattern
Temporarily remove a message ignore pattern.
.It Ic /window
List all windows.
.It Ic /window Ar name | substring
Switch to window by name
or matching substring.
.It Ic /window Ar num | Ic / Ns Ar num
Switch to window by number.
.El
.
.Ss Operator Commands
.Bl -tag -width Ds
.It Ic /ban Op Ar mask ...
List or ban masks from the channel.
.It Ic /deop Op Ar nick ...
Revoke channel operator status from users or yourself.
.It Ic /devoice Op Ar nick ...
Revoke voice from users or yourself in the channel.
.It Ic /except Op Ar mask ...
List or add masks to the channel ban exception list.
.It Ic /invex Op Ar mask ...
List or add masks to the channel invite list.
.It Ic /kick Ar nick Op Ar message
Kick a user from the channel.
.It Ic /mode Oo Ar modes Oc Op Ar param ...
Show or set channel modes.
In the
.Sy <network>
window,
show or set user modes.
.It Ic /op Op Ar nick ...
Grant users or yourself channel operator status.
.It Ic /unban Ar mask ...
Unban masks from the channel.
.It Ic /unexcept Ar mask ...
Remove masks from the channel ban exception list.
.It Ic /uninvex Ar mask ...
Remove masks from the channel invite list.
.It Ic /voice Op Ar nick ...
Grant users or yourself voice in the channel.
.El
.
.Sh KEY BINDINGS
The
.Nm
interface provides
.Xr emacs 1 Ns -like
line editing
as well as keys for IRC formatting.
The prefixes
.Ic C-
and
.Ic M-
represent the control and meta (alt)
modifiers, respectively.
.
.Ss Line Editing
.Bl -tag -width Ds -compact
.It Ic C-a
Move to beginning of line.
.It Ic C-b
Move left.
.It Ic C-d
Delete next character.
.It Ic C-e
Move to end of line.
.It Ic C-f
Move right.
.It Ic C-k
Delete to end of line.
.It Ic C-t
Transpose characters.
.It Ic C-u
Delete to beginning of line.
.It Ic C-w
Delete previous word.
.It Ic C-x
Expand a text macro beginning with
.Ql \e .
.It Ic C-y
Paste previously deleted text.
.It Ic M-Enter
Insert a newline without sending a command.
.It Ic M-b
Move to previous word.
.It Ic M-d
Delete next word.
.It Ic M-f
Move to next word.
.It Ic M-q
Collapse all whitespace.
.It Ic Tab
Complete nick, channel, command or macro.
.El
.Pp
Arrow and navigation keys
also work as expected.
.
.Ss Window Keys
.Bl -tag -width Ds -compact
.It Ic C-l
Redraw the UI.
.It Ic C-n
Switch to next window.
.It Ic C-p
Switch to previous window.
.It Ic C-r
Scroll to previous line matching input.
.It Ic C-s
Scroll to next line matching input.
.It Ic C-v
Scroll down a page.
.It Ic M-+
Raise message visibility threshold,
hiding ignored messages,
general events,
or non-highlighted messages.
.It Ic M--
Lower message visibility threshold,
showing ignored messages.
.It Ic M-=
Toggle mute.
Muted windows do not appear in the status line
unless you are mentioned.
.It Ic M-/
Switch to previously selected window.
.It Ic M-<
Scroll to top.
.It Ic M->
Scroll to bottom.
.It Ic M- Ns Ar n
Switch to window by number 0\(en9.
.It Ic M-a
Cycle through unread windows.
.It Ic M-l
List the contents of the window
without word-wrapping
and with timestamps.
Press
.Ic Enter
to return to
.Nm .
.It Ic M-m
Insert a blank line in the window.
.It Ic M-n
Scroll to next highlight.
.It Ic M-p
Scroll to previous highlight.
.It Ic M-s
Reveal spoiler text.
.It Ic M-t
Toggle timestamps.
.It Ic M-u
Scroll to first unread line.
.It Ic M-v
Scroll up a page.
.El
.
.Ss IRC Formatting
.Bl -tag -width "C-z C-v" -compact
.It Ic C-z C-v
Insert the next input character literally.
.It Ic C-z b
Toggle bold.
.It Ic C-z c
Set or reset color.
.It Ic C-z i
Toggle italics.
.It Ic C-z o
Reset formatting.
.It Ic C-z p
Manually toggle paste mode.
.It Ic C-z r
Toggle reverse color.
.It Ic C-z s
Set spoiler text (black on black).
.It Ic C-z u
Toggle underline.
.El
.
.Pp
Some color codes can be inserted
with the following:
.Bl -column "C-z A" "magenta" "C-z N" "orange (dark yellow)"
.It Ic C-z A Ta gray Ta Ic C-z N Ta brown (dark red)
.It Ic C-z B Ta blue Ta Ic C-z O Ta orange (dark yellow)
.It Ic C-z C Ta cyan Ta Ic C-z P Ta pink (light magenta)
.It Ic C-z G Ta green Ta Ic C-z R Ta red
.It Ic C-z K Ta black Ta Ic C-z W Ta white
.It Ic C-z M Ta magenta Ta Ic C-z Y Ta yellow
.El
.
.Pp
To set other colors, follow
.Ic C-z c
by one or two digits for the foreground color,
optionally followed by a comma
and one or two digits for the background color.
To reset color, follow
.Ic C-z c
by a non-digit.
.
.Pp
The color numbers are as follows:
.Bl -column "99" "orange (dark yellow)" "15" "pink (light magenta)"
.It \ 0 Ta white Ta \ 8 Ta yellow
.It \ 1 Ta black Ta \ 9 Ta light green
.It \ 2 Ta blue Ta 10 Ta cyan
.It \ 3 Ta green Ta 11 Ta light cyan
.It \ 4 Ta red Ta 12 Ta light blue
.It \ 5 Ta brown (dark red) Ta 13 Ta pink (light magenta)
.It \ 6 Ta magenta Ta 14 Ta gray
.It \ 7 Ta orange (dark yellow) Ta 15 Ta light gray
.It 99 Ta default Ta Ta
.El
.
.Sh ENVIRONMENT
.Bl -tag -width Ds
.It Ev SHELL
The shell used by
.Ic /exec .
The default is
.Pa /bin/sh .
.It Ev USER
The default nickname.
.El
.
.Sh FILES
.Bl -tag -width Ds
.It Pa $XDG_CONFIG_DIRS/catgirl
Configuration files are searched for first in
.Ev $XDG_CONFIG_HOME ,
usually
.Pa ~/.config ,
followed by the colon-separated list of paths
.Ev $XDG_CONFIG_DIRS ,
usually
.Pa /etc/xdg .
.It Pa ~/.config/catgirl
The most likely location of configuration files.
.
.It Pa $XDG_DATA_DIRS/catgirl
Save files are searched for first in
.Ev $XDG_DATA_HOME ,
usually
.Pa ~/.local/share ,
followed by the colon-separated list of paths
.Ev $XDG_DATA_DIRS ,
usually
.Pa /usr/local/share:/usr/share .
.It Pa ~/.local/share/catgirl
The most likely location of save files.
.El
.
.Sh EXIT STATUS
The
.Nm
client exits 0
if requested by the user,
.Dv EX_UNAVAILABLE
(69)
if the connection is lost,
and >0 if any other error occurs.
.
.Sh EXAMPLES
Join
.Li #ascii.town
from the command line:
.Bd -literal -offset indent
$ catgirl -h irc.tilde.chat -j '#ascii.town'
.Ed
.Pp
Create a configuration file in
.Pa ~/.config/catgirl/tilde :
.Bd -literal -offset indent
host = irc.tilde.chat
join = #ascii.town
.Ed
.Pp
Load the configuration file:
.Bd -literal -offset indent
$ catgirl tilde
.Ed
.
.Sh STANDARDS
.Bl -item
.It
.Rs
.%A Adam
.%A Attila Molnar
.%T IRCv3.2 invite-notify Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/invite-notify-3.2
.Re
.It
.Rs
.%A Jack Allnutt
.%T Modern IRC Client Protocol
.%I ircdocs
.%U https://modern.ircdocs.horse/index.html
.Re
.It
.Rs
.%A Kiyoshi Aman
.%A Kyle Fuller
.%A St\('ephan Kochen
.%A Alexey Sokolov
.%A James Wheare
.%T IRCv3 Message Tags
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/message-tags
.Re
.It
.Rs
.%A Kiyoshi Aman
.%T IRCv3.1 extended-join Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/extended-join-3.1
.Re
.It
.Rs
.%A Waldo Bastian
.%A Ryan Lortie
.%A Lennart Poettering
.%T XDG Base Directory Specification
.%U https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
.%D November 24, 2010
.Re
.It
.Rs
.%A Christine Dodrill
.%T IRCv3.2 chghost Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/chghost-3.2
.Re
.It
.Rs
.%A Kyle Fuller
.%A St\('ephan Kochen
.%A Alexey Sokolov
.%A James Wheare
.%T IRCv3.2 server-time Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/server-time-3.2
.Re
.It
.Rs
.%A Lee Hardy
.%A Perry Lorier
.%A Kevin L. Mitchell
.%A William Pitcock
.%T IRCv3.1 Client Capability Negotiation
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/core/capability-negotiation-3.1.html
.Re
.It
.Rs
.%A S. Josefsson
.%T The Base16, Base32, and Base64 Data Encodings
.%I IETF
.%R RFC 4648
.%U https://tools.ietf.org/html/rfc4648
.%D October 2006
.Re
.It
.Rs
.%A C. Kalt
.%T Internet Relay Chat: Client Protocol
.%I IETF
.%R RFC 2812
.%U https://tools.ietf.org/html/rfc2812
.%D April 2000
.Re
.It
.Rs
.%A Janne Mareike Koschinski
.%T IRCv3 setname Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/setname
.Re
.It
.Rs
.%A Mantas Mikul\[u0117]nas
.%T IRCv3.2 userhost-in-names Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/userhost-in-names-3.2
.Re
.It
.Rs
.%A Daniel Oaks
.%T Standard Replies Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/standard-replies
.Re
.It
.Rs
.%A Daniel Oaks
.%T IRC Formatting
.%I ircdocs
.%U https://modern.ircdocs.horse/formatting.html
.Re
.It
.Rs
.%A J. Oikarinen
.%A D. Reed
.%T Internet Relay Chat Protocol
.%I IETF
.%R RFC 1459
.%U https://tools.ietf.org/html/rfc1459
.%D May 1993
.Re
.It
.Rs
.%A William Pitcock
.%A Jilles Tjoelker
.%T IRCv3.1 SASL Authentication
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/sasl-3.1.html
.Re
.It
.Rs
.%A William Pitcock
.%T IRCv3.1 multi-prefix Extension
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/multi-prefix-3.1
.Re
.It
.Rs
.%A James Wheare
.%T Reply Client Tag
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/client-tags/reply
.Re
.It
.Rs
.%A James Wheare
.%T Message IDs
.%I IRCv3 Working Group
.%U https://ircv3.net/specs/extensions/message-ids
.Re
.It
.Rs
.%A K. Zeilenga, Ed.
.%T The PLAIN Simple Authentication and Security Layer (SASL) Mechanism
.%I IETF
.%R RFC 4616
.%U https://tools.ietf.org/html/rfc4616
.%D August 2006
.Re
.El
.
.Ss Extensions
The
.Nm
client implements the
.Sy causal.agency/consumer
vendor-specific IRCv3 capability
offered by
.Xr pounce 1 .
The consumer position is stored in the
.Cm save
file.
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