diff --git a/backup/volumes_list b/backup/volumes_list
index 73e639e3..dae063c5 100644
--- a/backup/volumes_list
+++ b/backup/volumes_list
@@ -5,5 +5,6 @@ singularity_email-journal
 singularity_orbit-db
 singularity_ssl-certs
 singularity_submatrix-data
-singularity_grades-db
+singularity_submissions-db
+singularity_denis-db
 '
diff --git a/chronus/Containerfile b/chronus/Containerfile
deleted file mode 100644
index ce02f382..00000000
--- a/chronus/Containerfile
+++ /dev/null
@@ -1,50 +0,0 @@
-FROM alpine:3.19 AS build
-RUN apk add \
-	clang \
-	make \
-	envsubst \
-	;
-
-COPY --from=run_at_source . /run-at
-
-RUN make -C /run-at CC='clang -static'
-
-COPY --from=pop_source . /pop
-
-RUN make -C /pop CC='clang -static' restrict_access
-
-WORKDIR /usr/local/share/chronus
-COPY . .
-
-ARG CHRONUS_HOSTNAME
-RUN test -n "$CHRONUS_HOSTNAME " || (echo 'CHRONUS_HOSTNAME is not set' && false) && \
-	mv config.py config.py.template && \
-	envsubst '$CHRONUS_HOSTNAME' < config.py.template > config.py && \
-	rm config.py.template \
-	;
-
-FROM alpine:3.19 AS chronus
-
-RUN apk add \
-	py3-peewee \
-	py3-curl \
-	;
-
-WORKDIR /usr/local/share/chronus
-
-COPY --from=build /usr/local/share/chronus .
-COPY --from=denis_source . ./denis
-COPY --from=orbit_source . ./orbit
-
-RUN mkdir -p /var/lib/chronus && \
-	./db.py \
-	:
-
-RUN chown -R 100:100 /var/lib/chronus
-
-COPY --from=build /run-at/run-at /usr/local/bin/run-at
-COPY --from=build /pop/restrict_access /usr/local/bin/restrict_access
-
-USER 100:100
-
-ENTRYPOINT ["/usr/local/share/chronus/start.py"]
diff --git a/chronus/db.py b/chronus/db.py
deleted file mode 100755
index d10cfb06..00000000
--- a/chronus/db.py
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/env python3
-import peewee
-
-DB = peewee.SqliteDatabase("/var/lib/chronus/assignments.db")
-
-
-class BaseModel(peewee.Model):
-    class Meta:
-        database = DB
-        strict_tables = True
-
-
-class Assignment(BaseModel):
-    name = peewee.TextField(unique=True)
-    initial_due_date = peewee.IntegerField()
-    final_due_date = peewee.IntegerField()
-
-
-if __name__ == '__main__':
-    DB.create_tables(BaseModel.__subclasses__())
diff --git a/container-compose.yml b/container-compose.yml
index b7f079d2..199f5284 100644
--- a/container-compose.yml
+++ b/container-compose.yml
@@ -40,7 +40,7 @@ services:
         - orbit_singularity_git_dir=./.git
         - orbit_docs_source=./docs
         - orbit_repos_source=./cgit_repos
-        - denis_source=./denis
+        - mailman_source=./mailman
       target: orbit
       args:
         orbit_version_info: "singularity ${SINGULARITY_VERSION} ${SINGULARITY_DEPLOYMENT_STATUS} https://github.com/underground-software/singularity"
@@ -50,8 +50,8 @@ services:
         target: /var/lib/orbit
         read_only: false
       - type: volume
-        source: grades-db
-        target: /var/lib/denis
+        source: submissions-db
+        target: /var/lib/mailman
         read_only: true
     networks:
       - orbit
@@ -114,9 +114,9 @@ services:
     networks:
       - submatrix
       - orbit
-  denis:
+  mailman:
     build:
-      context: denis
+      context: mailman
       dockerfile: Containerfile
       additional_contexts:
         - watcher_source=./watcher
@@ -130,28 +130,28 @@ services:
         target: /var/lib/email/logs
         read_only: true
       - type: volume
-        source: grades-db
-        target: /var/lib/denis
+        source: submissions-db
+        target: /var/lib/mailman
         read_only: false
     depends_on:
       - smtp
     networks:
-      - denis
-  chronus:
+      - mailman
+  denis:
     build:
-      context: chronus
+      context: denis
       dockerfile: Containerfile
       additional_contexts:
         - run_at_source=./run-at
         - pop_source=./pop
-        - denis_source=./denis
+        - mailman_source=./mailman
         - orbit_source=./orbit
       args:
         CHRONUS_HOSTNAME: ${SINGULARITY_HOSTNAME}
     volumes:
       - type: volume
-        source: chronus-db
-        target: /var/lib/chronus
+        source: denis-db
+        target: /var/lib/denis
         read_only: false
       - type: volume
         source: email-journal
@@ -162,25 +162,25 @@ services:
         target: /var/lib/orbit
         read_only: true
       - type: volume
-        source: grades-db
-        target: /var/lib/denis
+        source: submissions-db
+        target: /var/lib/mailman
         read_only: true
     networks:
-      - chronus
+      - denis
       - smtp
 networks:
   orbit:
   smtp:
   pop:
   submatrix:
+  mailman:
   denis:
-  chronus:
 volumes:
   ssl-certs:
   email-mail:
   email-logs:
   email-journal:
   orbit-db:
-  grades-db:
+  submissions-db:
   submatrix-data:
-  chronus-db:
+  denis-db:
diff --git a/denis/Containerfile b/denis/Containerfile
index f60383c5..89849ccb 100644
--- a/denis/Containerfile
+++ b/denis/Containerfile
@@ -2,34 +2,49 @@ FROM alpine:3.19 AS build
 RUN apk add \
 	clang \
 	make \
+	envsubst \
 	;
 
-COPY --from=watcher_source . /watcher
+COPY --from=run_at_source . /run-at
 
-RUN make -C /watcher CC='clang -static'
+RUN make -C /run-at CC='clang -static'
+
+COPY --from=pop_source . /pop
+
+RUN make -C /pop CC='clang -static' restrict_access
+
+WORKDIR /usr/local/share/denis
+COPY . .
+
+ARG CHRONUS_HOSTNAME
+RUN test -n "$CHRONUS_HOSTNAME " || (echo 'CHRONUS_HOSTNAME is not set' && false) && \
+	mv config.py config.py.template && \
+	envsubst '$CHRONUS_HOSTNAME' < config.py.template > config.py && \
+	rm config.py.template \
+	;
 
 FROM alpine:3.19 AS denis
 
 RUN apk add \
 	py3-peewee \
-	py3-gitpython \
+	py3-curl \
 	;
 
-
 WORKDIR /usr/local/share/denis
 
-COPY . .
+COPY --from=build /usr/local/share/denis .
+COPY --from=mailman_source . ./mailman
+COPY --from=orbit_source . ./orbit
 
-RUN mkdir -p /var/lib/denis/ && \
+RUN mkdir -p /var/lib/denis && \
 	./db.py \
 	:
 
 RUN chown -R 100:100 /var/lib/denis
 
-COPY --from=build /watcher/watcher /usr/local/bin/watcher
-
-VOLUME /var/lib/email/
+COPY --from=build /run-at/run-at /usr/local/bin/run-at
+COPY --from=build /pop/restrict_access /usr/local/bin/restrict_access
 
 USER 100:100
 
-ENTRYPOINT ["/usr/local/bin/watcher", "/var/lib/email/logs", "submit.py"]
+ENTRYPOINT ["/usr/local/share/denis/start.py"]
diff --git a/chronus/config.py b/denis/config.py
similarity index 100%
rename from chronus/config.py
rename to denis/config.py
diff --git a/chronus/configure.py b/denis/configure.py
similarity index 100%
rename from chronus/configure.py
rename to denis/configure.py
diff --git a/chronus/configure.sh b/denis/configure.sh
similarity index 55%
rename from chronus/configure.sh
rename to denis/configure.sh
index 82cb730c..f22f4950 100755
--- a/chronus/configure.sh
+++ b/denis/configure.sh
@@ -3,5 +3,5 @@ set -e
 
 COMPOSE=${COMPOSE:-podman-compose}
 
-${COMPOSE} exec chronus ./configure.py "$@"
+${COMPOSE} exec denis ./configure.py "$@"
 
diff --git a/denis/db.py b/denis/db.py
index 8c2651f2..b1573e71 100755
--- a/denis/db.py
+++ b/denis/db.py
@@ -1,8 +1,7 @@
 #!/usr/bin/env python3
-
 import peewee
 
-DB = peewee.SqliteDatabase("/var/lib/denis/grades.db")
+DB = peewee.SqliteDatabase("/var/lib/denis/assignments.db")
 
 
 class BaseModel(peewee.Model):
@@ -11,12 +10,10 @@ class Meta:
         strict_tables = True
 
 
-class Submission(BaseModel):
-    submission_id = peewee.TextField(unique=True)
-    assignment = peewee.TextField()
-    timestamp = peewee.IntegerField()
-    user = peewee.TextField()
-    status = peewee.TextField()
+class Assignment(BaseModel):
+    name = peewee.TextField(unique=True)
+    initial_due_date = peewee.IntegerField()
+    final_due_date = peewee.IntegerField()
 
 
 if __name__ == '__main__':
diff --git a/chronus/final.py b/denis/final.py
similarity index 88%
rename from chronus/final.py
rename to denis/final.py
index 38865560..d9098a70 100755
--- a/chronus/final.py
+++ b/denis/final.py
@@ -7,4 +7,4 @@
 # Block all students from seeing emails sent until
 # we allow again after initial sub deadline
 for user in orbit.db.User.select():
-    os.system(f'restrict_access /var/lib/email/journal/journal -d {user.username}')
+    os.system(f'restrict_access /var/lib/email/journal/journal -d {user.username}')  # NOQA: 501
diff --git a/chronus/initial.py b/denis/initial.py
similarity index 92%
rename from chronus/initial.py
rename to denis/initial.py
index cf39a0a0..55695fe8 100755
--- a/chronus/initial.py
+++ b/denis/initial.py
@@ -7,9 +7,10 @@
 import sys
 
 import config
-import denis.db
+import mailman.db
 import orbit.db
 
+
 def generate_peer_review_email(assignment, review_table):
     return f'''\
 Subject: Peer review assignments for {assignment}
@@ -103,14 +104,13 @@ def generate_peer_review_email(assignment, review_table):
     - An attempt to apply the cover letter will require a `git am --abort`
 '''
 
+
 # this is passed from start.py via run-at
 assignment = sys.argv[1]
 
 students_who_submitted = [user.username for user in orbit.db.User.select()
-        if denis.db.Submission.get_or_none((denis.db.Submission.user
-                                           == user.username) &
-                                           (denis.db.Submission.assignment
-                                           == assignment)) is not None]
+                          if mailman.db.Submission.get_or_none((mailman.db.Submission.user == user.username) &  # NOQA: E501
+                                                               (mailman.db.Submission.assignment == assignment)) is not None]  # NOQA: E501
 
 # let them see emails that have been sent since last final due date
 for student in students_who_submitted:
@@ -131,9 +131,9 @@ def generate_peer_review_email(assignment, review_table):
 # is the situation where there are fewer than 3 students total and it is
 # impossible to have any triplets. In that case we can form two pairs,
 # one singleton, or the empty list which is why we have min(len, 3)
-reviews = [[students_who_submitted[i+j] for j in
-                 range(-min(len(students_who_submitted), 3), 0)]
-                 for i in range(len(students_who_submitted))]
+reviews = [[students_who_submitted[i+j]
+            for j in range(-min(len(students_who_submitted), 3), 0)]
+           for i in range(len(students_who_submitted))]
 
 # To make it easier for the student to find their row, we can sort the
 # list. This will alphabetize based on the first column (and only the
@@ -152,7 +152,7 @@ def generate_peer_review_email(assignment, review_table):
 email_contents = generate_peer_review_email(assignment, review_table)
 
 client = pycurl.Curl()
-client.setopt(client.URL, f'smtp://smtp:1465')
+client.setopt(client.URL, 'smtp://smtp:1465')
 
 # Client must log in, so the server knows their username
 # but the password is not verified by the upstream server,
diff --git a/chronus/start.py b/denis/start.py
similarity index 99%
rename from chronus/start.py
rename to denis/start.py
index a3279b00..8d9ddd7e 100755
--- a/chronus/start.py
+++ b/denis/start.py
@@ -7,6 +7,7 @@
 
 import db
 
+
 def spawn_waiter(timestamp, name, script):
     return subprocess.Popen(['/usr/local/bin/run-at', timestamp, script, name])
 
diff --git a/mailman/Containerfile b/mailman/Containerfile
new file mode 100644
index 00000000..9f600bff
--- /dev/null
+++ b/mailman/Containerfile
@@ -0,0 +1,35 @@
+FROM alpine:3.19 AS build
+RUN apk add \
+	clang \
+	make \
+	;
+
+COPY --from=watcher_source . /watcher
+
+RUN make -C /watcher CC='clang -static'
+
+FROM alpine:3.19 AS mailman
+
+RUN apk add \
+	py3-peewee \
+	py3-gitpython \
+	;
+
+
+WORKDIR /usr/local/share/mailman
+
+COPY . .
+
+RUN mkdir -p /var/lib/mailman/ && \
+	./db.py \
+	:
+
+RUN chown -R 100:100 /var/lib/mailman
+
+COPY --from=build /watcher/watcher /usr/local/bin/watcher
+
+VOLUME /var/lib/email/
+
+USER 100:100
+
+ENTRYPOINT ["/usr/local/bin/watcher", "/var/lib/email/logs", "submit.py"]
diff --git a/mailman/db.py b/mailman/db.py
new file mode 100755
index 00000000..8c6a4f16
--- /dev/null
+++ b/mailman/db.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+
+import peewee
+
+DB = peewee.SqliteDatabase("/var/lib/mailman/submissions.db")
+
+
+class BaseModel(peewee.Model):
+    class Meta:
+        database = DB
+        strict_tables = True
+
+
+class Submission(BaseModel):
+    submission_id = peewee.TextField(unique=True)
+    assignment = peewee.TextField()
+    timestamp = peewee.IntegerField()
+    user = peewee.TextField()
+    status = peewee.TextField()
+
+
+if __name__ == '__main__':
+    DB.create_tables(BaseModel.__subclasses__())
diff --git a/denis/submit.py b/mailman/submit.py
similarity index 98%
rename from denis/submit.py
rename to mailman/submit.py
index 92043714..da290cae 100755
--- a/denis/submit.py
+++ b/mailman/submit.py
@@ -82,7 +82,7 @@ def main(argv):
         repo = git.Repo.init(repo_path)
         maildir = Path(MAIL_DIR_ABSPATH)
         author_args = ["-c", "user.name=Denis", "-c",
-                       "user.email=daemon@denis.d"]
+                       "user.email=daemon@mailman.d"]
         git_am_args = ["git", *author_args, "am", "--keep"]
         whitespace_errors = []
         for i, patch in enumerate(patches):
diff --git a/orbit/Containerfile b/orbit/Containerfile
index 62fc973f..008c5b41 100644
--- a/orbit/Containerfile
+++ b/orbit/Containerfile
@@ -29,7 +29,7 @@ WORKDIR /usr/local/share/orbit
 
 COPY --from=build /usr/local/share/orbit /usr/local/share/orbit
 COPY --from=orbit_docs_source . ./docs
-COPY --from=denis_source . ./denis
+COPY --from=mailman_source . ./mailman
 COPY --from=orbit_singularity_git_dir . /var/git/singularity
 COPY --from=orbit_repos_source . /etc/cgit
 
diff --git a/orbit/radius.py b/orbit/radius.py
index 99bf5cc2..e7bed0bb 100644
--- a/orbit/radius.py
+++ b/orbit/radius.py
@@ -16,7 +16,7 @@
 # === internal imports & constants ===
 import config
 import db
-import denis.db
+import mailman.db
 
 sec_per_min = 60
 min_per_ses = config.minutes_each_session_token_is_valid
@@ -382,9 +382,9 @@ def handle_dashboard(rocket):
     if not rocket.session:
         return rocket.raw_respond(HTTPStatus.UNAUTHORIZED)
 
-    submissions = (denis.db.Submission.select()
-                   .where(denis.db.Submission.user == rocket.session.username)
-                   .order_by(- denis.db.Submission.timestamp))
+    submissions = (mailman.db.Submission.select()
+                   .where(mailman.db.Submission.user == rocket.session.username)  # NOQA: E501
+                   .order_by(- mailman.db.Submission.timestamp))
 
     def submission_fields(sub):
         return (datetime.fromtimestamp(sub.timestamp).isoformat(),
diff --git a/orbit/test-style.sh b/orbit/test-style.sh
deleted file mode 100755
index c7518fdf..00000000
--- a/orbit/test-style.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/sh
-
-require() { command -v "$1" > /dev/null || { echo "error: $1 command required yet absent" ; exit 1 ; } ; }
-require flake8
-
-set -ex
-
-flake8 radius.py
-flake8 config.py
-flake8 db.py
-flake8 hyperspace.py
diff --git a/script-lint.sh b/script-lint.sh
index eb2f18cf..83983097 100755
--- a/script-lint.sh
+++ b/script-lint.sh
@@ -7,7 +7,6 @@ set -ex
 
 shellcheck script-lint.sh
 shellcheck test.sh
-shellcheck orbit/test-style.sh
 shellcheck orbit/warpdrive.sh
 
 # -x needed to make shellcheck follow `source` command
diff --git a/test.sh b/test.sh
index 61bc08a4..b73aa576 100755
--- a/test.sh
+++ b/test.sh
@@ -21,12 +21,8 @@ require "${DOCKER}"
 # Check for shell script style compliance with shellcheck
 ./script-lint.sh
 
-# Check python style compliance with flake8
-pushd orbit
-./test-style.sh
-popd
-
-flake8 submatrix/orbit_auth.py
+# Check python style compliance
+flake8
 
 # Create test dir if it does not exist yet
 mkdir -p test
@@ -215,3 +211,5 @@ curl --url "https://$SINGULARITY_HOSTNAME/_matrix/client/r0/login" \
       }" \
   | tee test/matrix_login_invalid \
   | grep '{"errcode":"M_FORBIDDEN","error":"Invalid username or password"}'
+
+echo "ALL TESTS PASS"