[Config Packages] Suggest --platform/--exclude-platform upon error with installing package that is uninstallable on user's platform

Author: savil

internal/nix/nix.go

@@ -182,6 +182,10 @@ var nixPlatforms = []string{
 	"armv7l-linux",
 }
 
+func SupportedPlatforms() []string {
+	return nixPlatforms
+}
+
 // EnsureValidPlatform returns an error if the platform is not supported by nix.
 // https://nixos.org/manual/nix/stable/installation/supported-platforms.html
 func EnsureValidPlatform(platform string) error {

internal/nix/nixprofile/profile.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/fatih/color"
 	"github.com/pkg/errors"
+	"github.com/samber/lo"
 	"go.jetpack.io/devbox/internal/boxcli/usererr"
 	"go.jetpack.io/devbox/internal/devpkg"
 	"go.jetpack.io/devbox/internal/lock"
@@ -265,9 +266,22 @@ func ProfileInstall(args *ProfileInstallArgs) error {
 		if exists, err := input.ValidateInstallsOnSystem(); err != nil {
 			return err
 		} else if !exists {
+			platform, err := nix.System()
+			if err != nil {
+				platform = ""
+			} else {
+				platform = " " + platform
+			}
+			otherPlatforms := lo.Filter(nix.SupportedPlatforms(), func(p string, _ int) bool {
+				return p != platform
+			})
 			return usererr.New(
-				"package %s cannot be installed on your system. It may be installable on other systems.",
+				"package %s cannot be installed on your platform%s. "+
+					"Consider using `--platform` or `--exclude-platform` with `devbox add` to install on a supported"+
+					" platform. Other available platforms are: %s.",
 				input.String(),
+				platform,
+				strings.Join(otherPlatforms, ", "),
 			)
 		}
 	}