diff --git a/nextjs/package-lock.json b/nextjs/package-lock.json
index bfb057e..0cba1c3 100644
--- a/nextjs/package-lock.json
+++ b/nextjs/package-lock.json
@@ -12,7 +12,9 @@
         "@tanstack/react-query": "^5.54.1",
         "axios": "^1.7.5",
         "isomorphic-dompurify": "^2.15.0",
-        "marked": "^14.1.0",
+        "katex": "^0.16.11",
+        "marked": "^14.1.2",
+        "marked-katex-extension": "^5.1.2",
         "next": "^14.2.7",
         "react": "^18",
         "react-dom": "^18",
@@ -1751,6 +1753,12 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/katex": {
+      "version": "0.16.7",
+      "resolved": "https://registry.npmjs.org/@types/katex/-/katex-0.16.7.tgz",
+      "integrity": "sha512-HMwFiRujE5PjrgwHQ25+bsLJgowjGjm5Z8FVSf0N6PwgJrwxH0QxzHYDcKsTfV3wva0vzrpqMTJS2jXPr5BMEQ==",
+      "license": "MIT"
+    },
     "node_modules/@types/node": {
       "version": "22.5.2",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-22.5.2.tgz",
@@ -5196,6 +5204,31 @@
         "node": ">=4.0"
       }
     },
+    "node_modules/katex": {
+      "version": "0.16.11",
+      "resolved": "https://registry.npmjs.org/katex/-/katex-0.16.11.tgz",
+      "integrity": "sha512-RQrI8rlHY92OLf3rho/Ts8i/XvjgguEjOkO1BEXcU3N8BqPpSzBNwV/G0Ukr+P/l3ivvJUE/Fa/CwbS6HesGNQ==",
+      "funding": [
+        "https://opencollective.com/katex",
+        "https://github.com/sponsors/katex"
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "commander": "^8.3.0"
+      },
+      "bin": {
+        "katex": "cli.js"
+      }
+    },
+    "node_modules/katex/node_modules/commander": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-8.3.0.tgz",
+      "integrity": "sha512-OkTL9umf+He2DZkUq8f8J9of7yL6RJKI24dVITBmNfZBmri9zYZQrKkuXiKhyfPSu8tUhnVBB1iKXevvnlR4Ww==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 12"
+      }
+    },
     "node_modules/keyv": {
       "version": "4.5.4",
       "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",
@@ -5337,9 +5370,9 @@
       }
     },
     "node_modules/marked": {
-      "version": "14.1.0",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-14.1.0.tgz",
-      "integrity": "sha512-P93GikH/Pde0hM5TAXEd8I4JAYi8IB03n8qzW8Bh1BIEFpEyBoYxi/XWZA53LSpTeLBiMQOoSMj0u5E/tiVYTA==",
+      "version": "14.1.2",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-14.1.2.tgz",
+      "integrity": "sha512-f3r0yqpz31VXiDB/wj9GaOB0a2PRLQl6vJmXiFrniNwjkKdvakqJRULhjFKJpxOchlCRiG5fcacoUZY5Xa6PEQ==",
       "license": "MIT",
       "bin": {
         "marked": "bin/marked.js"
@@ -5348,6 +5381,19 @@
         "node": ">= 18"
       }
     },
+    "node_modules/marked-katex-extension": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/marked-katex-extension/-/marked-katex-extension-5.1.2.tgz",
+      "integrity": "sha512-jRtacvDAPULKBWArDno0IGpzzpUw12yb8OaEsv3dTlvcIr21+mF9kD+Bxo2m/ErX/2ZIml6zFVMnpxCpqx3stw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/katex": "^0.16.7"
+      },
+      "peerDependencies": {
+        "katex": ">=0.16 <0.17",
+        "marked": ">=4 <15"
+      }
+    },
     "node_modules/merge-stream": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/merge-stream/-/merge-stream-2.0.0.tgz",
diff --git a/nextjs/package.json b/nextjs/package.json
index c68d044..970c2ee 100644
--- a/nextjs/package.json
+++ b/nextjs/package.json
@@ -14,7 +14,9 @@
     "@tanstack/react-query": "^5.54.1",
     "axios": "^1.7.5",
     "isomorphic-dompurify": "^2.15.0",
-    "marked": "^14.1.0",
+    "katex": "^0.16.11",
+    "marked": "^14.1.2",
+    "marked-katex-extension": "^5.1.2",
     "next": "^14.2.7",
     "react": "^18",
     "react-dom": "^18",
diff --git a/nextjs/src/app/api/canvas/[...rest]/route.ts b/nextjs/src/app/api/canvas/[...rest]/route.ts
index d30e48b..ae28baf 100644
--- a/nextjs/src/app/api/canvas/[...rest]/route.ts
+++ b/nextjs/src/app/api/canvas/[...rest]/route.ts
@@ -1,7 +1,11 @@
 import { NextRequest, NextResponse } from "next/server";
 import { axiosClient } from "@/services/axiosUtils";
 import { withErrorHandling } from "@/services/withErrorHandling";
-import { AxiosResponseHeaders, RawAxiosResponseHeaders } from "axios";
+import {
+  AxiosResponseHeaders,
+  isAxiosError,
+  RawAxiosResponseHeaders,
+} from "axios";
 
 const getUrl = (params: { rest: string[] }) => {
   const { rest } = params;
@@ -27,7 +31,9 @@ const getNextUrl = (
   const nextLink = links.find((link) => link.includes('rel="next"'));
 
   if (!nextLink) {
-    console.log("could not find next url in link header, reached end of pagination");
+    console.log(
+      "could not find next url in link header, reached end of pagination"
+    );
     return undefined;
   }
 
@@ -58,9 +64,8 @@ export async function GET(
         url.toString()
       );
 
-      if(!Array.isArray(firstData))
-      {
-        return NextResponse.json(firstData)
+      if (!Array.isArray(firstData)) {
+        return NextResponse.json(firstData);
       }
 
       var returnData = firstData;
@@ -82,7 +87,6 @@ export async function GET(
       }
 
       return NextResponse.json(returnData);
-
     } catch (error: any) {
       return new NextResponse(
         JSON.stringify({ error: error.message || "Canvas GET request failed" }),
@@ -97,18 +101,24 @@ export async function POST(
   { params }: { params: { rest: string[] } }
 ) {
   return withErrorHandling(async () => {
+    const url = getUrl(params);
+    const body = await req.json();
+    let response;
     try {
-      const url = getUrl(params);
-      const body = await req.json();
-      const response = await axiosClient.post(url.toString(), body);
+      response = await axiosClient.post(url.toString(), body);
 
       const headers = proxyResponseHeaders(response);
       return new NextResponse(JSON.stringify(response.data), { headers });
     } catch (error: any) {
-      return new NextResponse(
-        JSON.stringify({
+      if (isAxiosError(error)) {
+        console.log(url.toString(), body);
+        console.log("response data", JSON.stringify( error.response?.data));
+        console.log("is axios error");
+      }
+      return NextResponse.json(
+        {
           error: error.message || "Canvas POST request failed",
-        }),
+        },
         { status: error.response?.status || 500 }
       );
     }
diff --git a/nextjs/src/app/course/[courseName]/calendar/Day.tsx b/nextjs/src/app/course/[courseName]/calendar/Day.tsx
index 25d28fe..87d66a6 100644
--- a/nextjs/src/app/course/[courseName]/calendar/Day.tsx
+++ b/nextjs/src/app/course/[courseName]/calendar/Day.tsx
@@ -135,7 +135,7 @@ function DraggableListItem({
       href={getModuleItemUrl(courseName, moduleName, type, item.name)}
       shallow={true}
       className={
-        " border rounded-sm px-1 mx-1 break-all " +
+        " border rounded-sm px-1 mx-1 break-all mb-1 " +
         " border-slate-600 bg-slate-800 " +
         " block "
       }
diff --git a/nextjs/src/app/course/[courseName]/modules/[moduleName]/assignment/[assignmentName]/EditAssignment.tsx b/nextjs/src/app/course/[courseName]/modules/[moduleName]/assignment/[assignmentName]/EditAssignment.tsx
index 3017c04..eec6780 100644
--- a/nextjs/src/app/course/[courseName]/modules/[moduleName]/assignment/[assignmentName]/EditAssignment.tsx
+++ b/nextjs/src/app/course/[courseName]/modules/[moduleName]/assignment/[assignmentName]/EditAssignment.tsx
@@ -15,9 +15,11 @@ import {
   useAddAssignmentToCanvasMutation,
   useCanvasAssignmentsQuery,
   useDeleteAssignmentFromCanvasMutation,
+  useUpdateAssignmentInCanvasMutation,
 } from "@/hooks/canvas/canvasAssignmentHooks";
 import { Spinner } from "@/components/Spinner";
 import { baseCanvasUrl } from "@/services/canvas/canvasServiceUtils";
+import ClientOnly from "@/components/ClientOnly";
 
 export default function EditAssignment({
   moduleName,
@@ -79,10 +81,12 @@ export default function EditAssignment({
           <AssignmentPreview assignment={assignment} />
         </div>
       </div>
-      <AssignmentButtons
-        moduleName={moduleName}
-        assignmentName={assignmentName}
-      />
+      <ClientOnly>
+        <AssignmentButtons
+          moduleName={moduleName}
+          assignmentName={assignmentName}
+        />
+      </ClientOnly>
     </div>
   );
 }
@@ -100,13 +104,16 @@ function AssignmentButtons({
   const { data: assignment } = useAssignmentQuery(moduleName, assignmentName);
   const addToCanvas = useAddAssignmentToCanvasMutation();
   const deleteFromCanvas = useDeleteAssignmentFromCanvasMutation();
+  const updateAssignment = useUpdateAssignmentInCanvasMutation();
 
   const assignmentInCanvas = canvasAssignments.find(
     (a) => a.name === assignmentName
   );
   return (
     <div className="p-5 flex flex-row justify-end gap-3">
-      {(addToCanvas.isPending || deleteFromCanvas.isPending) && <Spinner />}
+      {(addToCanvas.isPending ||
+        deleteFromCanvas.isPending ||
+        updateAssignment.isPending) && <Spinner />}
       {assignmentInCanvas && !assignmentInCanvas.published && (
         <div className="text-rose-300 my-auto">Not Published</div>
       )}
@@ -115,7 +122,7 @@ function AssignmentButtons({
           disabled={addToCanvas.isPending}
           onClick={() => addToCanvas.mutate(assignment)}
         >
-          Add to canvas....
+          Add to canvas
         </button>
       )}
       {assignmentInCanvas && (
@@ -127,6 +134,20 @@ function AssignmentButtons({
           View in Canvas
         </a>
       )}
+      {assignmentInCanvas && (
+        <button
+          className=""
+          disabled={deleteFromCanvas.isPending}
+          onClick={() =>
+            updateAssignment.mutate({
+              canvasAssignmentId: assignmentInCanvas.id,
+              assignment,
+            })
+          }
+        >
+          Update in Canvas
+        </button>
+      )}
       {assignmentInCanvas && (
         <button
           className="btn-danger"
diff --git a/nextjs/src/app/course/[courseName]/modules/[moduleName]/page/[pageName]/EditPage.tsx b/nextjs/src/app/course/[courseName]/modules/[moduleName]/page/[pageName]/EditPage.tsx
index 11e913b..824a018 100644
--- a/nextjs/src/app/course/[courseName]/modules/[moduleName]/page/[pageName]/EditPage.tsx
+++ b/nextjs/src/app/course/[courseName]/modules/[moduleName]/page/[pageName]/EditPage.tsx
@@ -13,7 +13,6 @@ import {
   useCanvasPagesQuery,
   useCreateCanvasPageMutation,
 } from "@/hooks/canvas/canvasPageHooks";
-import { Spinner } from "@/components/Spinner";
 import EditPageButtons from "./EditPageButtons";
 
 export default function EditPage({
diff --git a/nextjs/src/app/globals.css b/nextjs/src/app/globals.css
index 237ec1d..ff4c0cb 100644
--- a/nextjs/src/app/globals.css
+++ b/nextjs/src/app/globals.css
@@ -18,7 +18,8 @@
 /* monaco editor */
 .monaco-editor-background,
 .monaco-editor .margin {
-  background-color: #18181b !important;
+  background-color: #020617 !important;
+  /* background-color: #18181b !important; */
 }
 .monaco-editor { position: absolute !important; }
 
@@ -59,6 +60,19 @@ ol {
   list-style-type: decimal;
   padding-left: 1.5rem;
 }
+table {
+  @apply border-collapse border border-gray-700;
+}
+
+thead {
+  @apply text-lg ;
+}
+
+th, td {
+  @apply px-2 py-1 border border-gray-700;
+}
+
+
 hr {
   @apply border-t border-gray-500 my-4;
 }
@@ -70,6 +84,7 @@ blockquote {
 code {
   @apply font-mono text-sm bg-gray-800 px-2 py-1 rounded-md leading-tight inline-block;
 }
+
 p {
   @apply mb-3;
 }
diff --git a/nextjs/src/app/layout.tsx b/nextjs/src/app/layout.tsx
index 2b73abb..1f4fd61 100644
--- a/nextjs/src/app/layout.tsx
+++ b/nextjs/src/app/layout.tsx
@@ -5,8 +5,8 @@ import { Suspense } from "react";
 import { getQueryClient } from "./providersQueryClientUtils";
 import { hydrateCourses } from "@/hooks/hookHydration";
 import { dehydrate, HydrationBoundary } from "@tanstack/react-query";
-import { ToastBar, Toaster } from "react-hot-toast";
 import { MyToaster } from "./MyToaster";
+import "katex/dist/katex.min.css";
 
 export const metadata: Metadata = {
   title: "Canvas Manager 2.0",
diff --git a/nextjs/src/hooks/canvas/canvasAssignmentHooks.ts b/nextjs/src/hooks/canvas/canvasAssignmentHooks.ts
index 681c234..7f4d930 100644
--- a/nextjs/src/hooks/canvas/canvasAssignmentHooks.ts
+++ b/nextjs/src/hooks/canvas/canvasAssignmentHooks.ts
@@ -46,13 +46,43 @@ export const useAddAssignmentToCanvasMutation = () => {
   const queryClient = useQueryClient();
 
   return useMutation({
-    mutationFn: async (assignmnet: LocalAssignment) => {
+    mutationFn: async (assignment: LocalAssignment) => {
       const assignmentGroup = settings.assignmentGroups.find(
-        (g) => g.name === assignmnet.localAssignmentGroupName
+        (g) => g.name === assignment.localAssignmentGroupName
       );
       await canvasAssignmentService.create(
         settings.canvasId,
-        assignmnet,
+        assignment,
+        assignmentGroup?.canvasId
+      );
+    },
+    onSuccess: () => {
+      queryClient.invalidateQueries({
+        queryKey: canvasAssignmentKeys.assignments(settings.canvasId),
+      });
+    },
+  });
+};
+
+export const useUpdateAssignmentInCanvasMutation = () => {
+  const { data: settings } = useLocalCourseSettingsQuery();
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: async ({
+      assignment,
+      canvasAssignmentId,
+    }: {
+      assignment: LocalAssignment;
+      canvasAssignmentId: number;
+    }) => {
+      const assignmentGroup = settings.assignmentGroups.find(
+        (g) => g.name === assignment.localAssignmentGroupName
+      );
+      await canvasAssignmentService.update(
+        settings.canvasId,
+        canvasAssignmentId,
+        assignment,
         assignmentGroup?.canvasId
       );
     },
diff --git a/nextjs/src/services/axiosUtils.ts b/nextjs/src/services/axiosUtils.ts
index da7bfb4..a2f163b 100644
--- a/nextjs/src/services/axiosUtils.ts
+++ b/nextjs/src/services/axiosUtils.ts
@@ -31,20 +31,26 @@ axiosClient.interceptors.response.use(
   (response) => response,
   (error: AxiosError) => {
     if (error.response) {
-      console.log("response error", error.response);
+      // console.log("response error", error.response);
       const responseErrorText =
         typeof error.response.data === "object"
           ? (error.response.data as any).error
           : error.response.data;
-      toast.error(
-        `Error: ${error.response.status} - ${responseErrorText}, ${decodeURI(
-          error.response.config.url ?? ""
-        )}`
-      );
+      if (!isServer) {
+        toast.error(
+          `Error: ${error.response.status} - ${responseErrorText}, ${decodeURI(
+            error.response.config.url ?? ""
+          )}`
+        );
+      }
     } else if (error.request) {
-      toast.error("Error: No response from server");
+      if (!isServer) {
+        toast.error("Error: No response from server");
+      }
     } else {
-      toast.error(`Error: ${error.message}`);
+      if (!isServer) {
+        toast.error(`Error: ${error.message}`);
+      }
     }
     return Promise.reject(error);
   }
diff --git a/nextjs/src/services/canvas/canvasAssignmentService.ts b/nextjs/src/services/canvas/canvasAssignmentService.ts
index e84a204..a3eb55d 100644
--- a/nextjs/src/services/canvas/canvasAssignmentService.ts
+++ b/nextjs/src/services/canvas/canvasAssignmentService.ts
@@ -5,6 +5,10 @@ import { axiosClient } from "../axiosUtils";
 import { markdownToHTMLSafe } from "../htmlMarkdownUtils";
 import { CanvasRubricCreationResponse } from "@/models/canvas/assignments/canvasRubricCreationResponse";
 import { assignmentPoints } from "@/models/local/assignment/utils/assignmentPointsUtils";
+import {
+  getDateFromString,
+  getDateFromStringOrThrow,
+} from "@/models/local/timeUtils";
 
 const createRubric = async (
   courseId: number,
@@ -77,18 +81,22 @@ export const canvasAssignmentService = {
     console.log(`Creating assignment: ${localAssignment.name}`);
     const url = `${canvasApi}/courses/${canvasCourseId}/assignments`;
     const body = {
-      name: localAssignment.name,
-      submission_types: localAssignment.submissionTypes.map((t) =>
-        t.toString()
-      ),
-      allowed_extensions: localAssignment.allowedFileUploadExtensions.map((e) =>
-        e.toString()
-      ),
-      description: markdownToHTMLSafe(localAssignment.description),
-      due_at: localAssignment.dueAt,
-      lock_at: localAssignment.lockAt,
-      points_possible: assignmentPoints(localAssignment),
-      assignment_group_id: canvasAssignmentGroupId,
+      assignment: {
+        name: localAssignment.name,
+        submission_types: localAssignment.submissionTypes.map((t) =>
+          t.toString()
+        ),
+        allowed_extensions: localAssignment.allowedFileUploadExtensions.map(
+          (e) => e.toString()
+        ),
+        description: markdownToHTMLSafe(localAssignment.description),
+        due_at: getDateFromString(localAssignment.dueAt)?.toISOString(),
+        lock_at:
+          localAssignment.lockAt &&
+          getDateFromString(localAssignment.lockAt)?.toISOString(),
+        points_possible: assignmentPoints(localAssignment),
+        assignment_group_id: canvasAssignmentGroupId,
+      },
     };
 
     const response = await axiosClient.post<CanvasAssignment>(url, body);
diff --git a/nextjs/src/services/htmlMarkdownUtils.ts b/nextjs/src/services/htmlMarkdownUtils.ts
index cd22c54..43c9960 100644
--- a/nextjs/src/services/htmlMarkdownUtils.ts
+++ b/nextjs/src/services/htmlMarkdownUtils.ts
@@ -1,8 +1,16 @@
 "use client";
 import { marked } from "marked";
+import markedKatex from "marked-katex-extension";
 import * as DOMPurify from "isomorphic-dompurify";
 
 export function markdownToHTMLSafe(markdownString: string) {
+  const options = {
+    throwOnError: false,
+    nonStandard: true
+  };
+  
+  marked.use(markedKatex(options));
+
   const clean = DOMPurify.sanitize(
     marked.parse(markdownString, { async: false, pedantic: false, gfm: true })
   );