diff --git a/ci/deploy.sh b/ci/deploy.sh
index 14943d305..7aac546e7 100755
--- a/ci/deploy.sh
+++ b/ci/deploy.sh
@@ -2,6 +2,8 @@
 
 set -eu -o pipefail # Exit with nonzero exit code if anything fails
 
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+
 is-automatic-update() {
   [[ "$TRAVIS_EVENT_TYPE" == "cron" ]] || [[ "$TRAVIS_EVENT_TYPE" == "api" ]]
 }
@@ -26,25 +28,14 @@ export encrypted_080f214a372c_key= encrypted_080f214a372c_iv=
 
 nix-build release.nix
 
-result/bin/nur format-manifest
-if [ -n "$(git diff --exit-code repos.json)" ]; then
-  echo "repos.json was not formatted before committing repos.json:" >&2
-  git diff --exit-code repos.json
-  echo "Please run ./bin/nur/format-manifest.py and updates repos.json accordingly!" >&2
-  exit 1
+if ! is-automatic-update; then
+  bash $DIR/lint.sh
 fi
 
 result/bin/nur update
 nix-build
 
 if ! is-automatic-update; then
-  # Type checker
-  nix run nixpkgs.python3Packages.mypy -c mypy nur
-  # Format checker
-  nix run nixpkgs.python3Packages.black -c black --check .
-  # Linter
-  nix run nixpkgs.python3Packages.flake8 -c flake8 .
-
   # Pull requests and commits to other branches shouldn't try to deploy, just build to verify
   echo "Skipping deploy; just doing a build."
   exit 0
diff --git a/ci/lint.sh b/ci/lint.sh
new file mode 100755
index 000000000..5bed39c7d
--- /dev/null
+++ b/ci/lint.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -eu -o pipefail # Exit with nonzero exit code if anything fails
+
+$(nix-build --no-out-link release.nix)/bin/nur format-manifest
+if [ -n "$(git diff --exit-code repos.json)" ]; then
+  echo "repos.json was not formatted before committing repos.json:" >&2
+  git diff --exit-code repos.json
+  echo "Please run ./bin/nur/format-manifest.py and updates repos.json accordingly!" >&2
+  exit 1
+fi
+
+# Type checker
+nix run nixpkgs.python3Packages.mypy -c mypy nur
+# Format checker
+nix run nixpkgs.python3Packages.black -c black --check .
+# Linter
+nix run nixpkgs.python3Packages.flake8 -c flake8 .
diff --git a/nur/channel.py b/nur/channel.py
index 05d545a23..f4db2b355 100644
--- a/nur/channel.py
+++ b/nur/channel.py
@@ -85,6 +85,14 @@ def remove_repo(repo: Repo, path: Path) -> None:
     commit_files([str(repo_path)], f"{repo.name}: remove")
 
 
+def update_manifest(repos: List[Repo], path: Path) -> None:
+    d = {}
+
+    for repo in repos:
+        d[repo.name] = repo.as_json()
+    write_json_file(dict(repos=d), path)
+
+
 def update_channel(path: Path) -> None:
     manifest = load_manifest(MANIFEST_PATH, LOCK_PATH)
 
@@ -112,6 +120,8 @@ def update_channel(path: Path) -> None:
     for channel_repo in channel_repos.values():
         remove_repo(channel_repo, path)
 
+    update_manifest(updated_repos, path.joinpath("repos.json"))
+
     update_lock_file(updated_repos, path.joinpath("repos.json.lock"))
 
 
diff --git a/nur/manifest.py b/nur/manifest.py
index a8226cec2..43c5b2bf4 100644
--- a/nur/manifest.py
+++ b/nur/manifest.py
@@ -38,7 +38,7 @@ class RepoType(Enum):
     GIT = auto()
 
     @staticmethod
-    def from_repo(repo: "Repo", type_: str) -> "RepoType":
+    def from_repo(repo: "Repo", type_: Optional[str]) -> "RepoType":
         if repo.submodules:
             return RepoType.GIT
         if repo.url.hostname == "github.com":
@@ -55,7 +55,7 @@ class Repo:
         name: str,
         url: Url,
         submodules: bool,
-        type_: str,
+        supplied_type: Optional[str],
         file_: Optional[str],
         locked_version: Optional[LockedVersion],
     ) -> None:
@@ -75,11 +75,30 @@ class Repo:
         ):
             self.locked_version = locked_version
 
-        self.type = RepoType.from_repo(self, type_)
+        self.supplied_type = supplied_type
+        self.computed_type = RepoType.from_repo(self, supplied_type)
+
+    @property
+    def type(self) -> RepoType:
+        return self.computed_type
 
     def __repr__(self) -> str:
         return f"<{self.__class__.__name__} {self.name}>"
 
+    def as_json(self) -> Dict[str, Any]:
+        d = dict(url=self.url.geturl())  # type: Dict[str, Any]
+
+        if self.submodules:
+            d["submodules"] = self.submodules
+
+        if self.supplied_type is not None:
+            d["type"] = self.supplied_type
+
+        if self.file is not None and self.file != "default.nix":
+            d["file"] = self.file
+
+        return d
+
 
 class Manifest:
     def __init__(self, repos: List[Repo]) -> None:
@@ -99,7 +118,8 @@ def _load_locked_versions(path: PathType) -> Dict[str, LockedVersion]:
         url = urlparse(repo["url"])
         rev = repo["rev"]
         sha256 = repo["sha256"]
-        locked_versions[name] = LockedVersion(url, rev, sha256)
+        submodules = repo.get("submodules", False)
+        locked_versions[name] = LockedVersion(url, rev, sha256, submodules)
 
     return locked_versions