Fix make run without make install in macos

Makefile

@@ -128,7 +128,11 @@ endif
 user-uninstall:
 	$(MAKE) uninstall DESTDIR=/ PREFIX=${HOME}/.local MANDIR=${HOME}/.local/share/man
 
+ifneq ($(shell uname),Darwin)
 run: install-desktop-user
+endif
+
+run:
 	rarun2 libpath=$(shell r2 -H R2_LIBDIR) program=$(BIN)
 
 install-desktop-user:

README.md

@@ -83,6 +83,9 @@ make
 make run
 ```
 
+On macOS, `make run` launches the app from `build/iaito.app` without installing it.
+Registering the `iaito://` URI handler is optional; see [deep links](doc/deeplinks.md#macos).
+
 To install the app in your home:
 
 ```sh

doc/deeplinks.md

@@ -210,6 +210,13 @@ The app bundle declares the scheme in `Info.plist` via `CFBundleURLTypes`
 the bundle is installed; `scripts/deeplink/register.sh` forces a refresh with
 `lsregister -f <iaito.app>`. The handler is dropped when the bundle is removed.
 
+`make run` launches the build without registering the URI handler. To optionally
+register the local bundle without installing it, run:
+
+```sh
+sh scripts/deeplink/register.sh "$PWD/build/iaito.app"
+```
+
 ### Windows
 
 `scripts/deeplink/register.bat` writes the `HKCU\Software\Classes\iaito` keys