megapixels-next: ship

i can't get any camera working on actually-mainline linux. i'm hoping megapixels-next will work with fewer patches, though

hosts/common/programs/assorted.nix

@@ -348,6 +348,7 @@ in
       "koreader"
       "lgtrombetta-compass"
       "megapixels"  # camera app
+      "megapixels-next"  # camera app
       "notejot"  # note taking, e.g. shopping list
       "planify"  # todo-tracker/planner
       "portfolio-filemanager"

hosts/common/programs/default.nix

@@ -101,6 +101,7 @@
     ./loupe.nix
     ./mako.nix
     ./megapixels.nix
+    ./megapixels-next.nix
     ./mepo.nix
     ./mimeo
     ./mimetype.nix

hosts/common/programs/megapixels-next.nix

@@ -0,0 +1,17 @@
+# mostly here for testing.
+# megapixels branching is weird, and their stable releases are cut from a commit which diverged well over a year ago IIRC.
+# state as of 2024-09-10:
+# - when run against linux-postmarketos-allwinner: renders camera preview image, but crashes on save.
+{ pkgs, ... }:
+{
+  sane.programs.megapixels-next = {
+    packageUnwrapped = pkgs.megapixels-next.overrideAttrs (base: {
+      # rename things so i can have `megapixels` and `megapixels-next` co-installed
+      postInstall = (base.postInstall or "") + ''
+        mv $out/bin/megapixels $out/bin/megapixels-next
+
+        rm $out/share/applications/me.gapixels.Megapixels.desktop
+      '';
+    });
+  };
+}