arch: point at ghostty-terminfo, the pacman spelling of the entry

optdepends says it at install time, the README and the install tab
say it before. Our package deliberately does not ship the file:
extra/ghostty-terminfo owns that path, and two packages must not.
Without either, slosh's own ~/.terminfo copy covers it. pkgrel=2,
both architectures rebuilt and republished.

3 files changed, 19 insertions, 3 deletions

diff --git a/contrib/arch/PKGBUILD b/contrib/arch/PKGBUILD
index 8dcdcda..60421b8 100644
--- a/contrib/arch/PKGBUILD
+++ b/contrib/arch/PKGBUILD
@@ -15,12 +15,17 @@
 
 pkgname=slosh
 pkgver=0.1.5
-pkgrel=1
+pkgrel=2
 pkgdesc="Terminal multiplexer: panes, tabs, and sessions you can detach from, on libghostty-vt"
 arch=('x86_64' 'aarch64')
 url="https://slosh.foo"
 license=('MIT')
 depends=('glibc')
+# Not a hard dependency: without it, slosh writes its own embedded copy of
+# the entry into ~/.terminfo the first time a pane needs it. The package is
+# the system-wide, pacman-managed spelling of the same thing -- and we do
+# not ship the file ourselves precisely because this package owns that path.
+optdepends=('ghostty-terminfo: xterm-ghostty terminfo system-wide, instead of the automatic ~/.terminfo copy')
 # One package, no -debug split: this builds for a repo we host ourselves,
 # and the stripped binary is the artifact. !strip because the aarch64 package
 # is cross-built on the x86_64 release box and native strip cannot read
diff --git a/contrib/arch/README.md b/contrib/arch/README.md
index c0b718e..729dfd3 100644
--- a/contrib/arch/README.md
+++ b/contrib/arch/README.md
@@ -27,7 +27,14 @@ would both have to lie. Then, in `/etc/pacman.conf`:
 Server = https://slosh.foo/arch/$arch
 ```
 
-and `pacman -Sy slosh`. No `SigLevel` override: pacman's default demands
+and `pacman -Sy slosh`. Optionally add `extra/ghostty-terminfo`: panes
+advertise `TERM=xterm-ghostty`, and while slosh installs its own embedded
+copy of the entry into `~/.terminfo` when it is missing everywhere, the
+package is the system-wide, pacman-managed spelling, and the reason our
+package does not ship the file itself (two packages must not own one path).
+The optdepends line says the same thing at install time.
+
+No `SigLevel` override: pacman's default demands
 package signatures, and now gets them. The database is signed too, so
 `SigLevel = Required DatabaseRequired` also works, if that is your
 temperament. (x86_64 and aarch64 both, and both built on the same x86_64
diff --git a/web/index.html b/web/index.html
index e29f726..60d7d51 100644
--- a/web/index.html
+++ b/web/index.html
@@ -206,7 +206,11 @@ Server = https://slosh.foo/arch/$arch
 <span class="prompt">$</span> sudo pacman -Sy slosh</code></pre>
         <button class="copy" type="button" aria-label="Copy command">copy</button>
       </div>
-      <p class="aside">Built, signed packages. The fingerprint to check before
+      <p class="aside">Built, signed packages. Add
+      <code>extra/ghostty-terminfo</code> if you want the
+      <code>xterm-ghostty</code> entry system-wide; without it slosh quietly
+      installs its own copy into <code>~/.terminfo</code>.
+      The fingerprint to check before
       the <code>--lsign-key</code>: the same key is
       <a href="https://github.com/sl0p-foo/slosh/blob/master/contrib/arch/slosh.asc">contrib/arch/slosh.asc</a>
       in git, so the file fetched from the website can be compared against the