emacs: add typst-ts-mode

Rename all shell script files to use .sh extensions for consistency
and better editor support (pushover-send, split-1G, xz, zipdir).
Update default.nix references to match the new filenames.

Add a new ,yt-dlp script that runs yt-dlp from nixpkgs-unstable
via `nix run`, so it's always up to date without needing to be
in the system packages.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

home/develop/emacs.nix

@@ -125,7 +125,10 @@ in
         markdown-ts-mode        # Markdown with tree-sitter parsing
         mermaid-ts-mode         # Mermaid diagram syntax with tree-sitter
         scala-ts-mode           # Scala with tree-sitter (alternative to scala-mode)
+        kotlin-ts-mode          # Kotlin programming with tree-sitter
         swift-ts-mode           # Swift programming with tree-sitter
+        typst-ts-mode           # Typst typesetting with tree-sitter
+        zig-ts-mode             # Zig programming with tree-sitter
       ];
 
       extraConfig = builtins.readFile ./emacs/custom.el + ''

home/private/ssh-hosts.nix

@@ -6,8 +6,7 @@
     enableDefaultConfig = false;
 
     matchBlocks = let
-      tb1 = "~/.ssh/id_rsa.tb1.pub";
+      tb1 = "~/.ssh/id_ed25519.tb1";
-      tb2 = "~/.ssh/id_rsa.tb2.pub";
     in
       {
         # Defaults

pkgs/tb-scripts/default.nix

@@ -20,25 +20,31 @@ pkgs.symlinkJoin {
     (pkgs.writeShellApplication {
       name = ",zipdir";
       runtimeInputs = [ pkgs.zip ];
-      text = builtins.readFile ./zipdir;
+      text = builtins.readFile ./zipdir.sh;
     })
 
     (pkgs.writeShellApplication {
       name = ",split-1G";
       runtimeInputs = [ pkgs.coreutils ];
-      text = builtins.readFile ./split-1G;
+      text = builtins.readFile ./split-1G.sh;
     })
 
     (pkgs.writeShellApplication {
       name = ",pushover-send";
       runtimeInputs = [ pkgs.curl ];
-      text = builtins.readFile ./pushover-send;
+      text = builtins.readFile ./pushover-send.sh;
     })
 
     (pkgs.writeShellApplication {
       name = ",xz";
       runtimeInputs = [ pkgs.xz ];
-      text = builtins.readFile ./xz;
+      text = builtins.readFile ./xz.sh;
+    })
+
+    (pkgs.writeShellApplication {
+      name = ",yt-dlp";
+      runtimeInputs = [ pkgs.nix ];
+      text = builtins.readFile ./yt-dlp.sh;
     })
   ];
 }

pkgs/tb-scripts/yt-dlp.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec nix run nixpkgs/nixpkgs-unstable#yt-dlp -- "$@"

system/default/ssh-authorized-keys.nix

@@ -2,7 +2,7 @@
 let
   primaryUser = config.system.primaryUser or "tb";
 
-  ssh_key_tb1 = "ssh-rsa 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";
+  ssh_key_tb1 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBW//dhztkY2OJTXK/1tpOdithfSX4tXt3w5CKPJPfFm tb1@ubi";
 in
 {
   # Allow root login with `tb1` ssh key.