diff --git a/static/scripts/fetch-manifest.ts b/static/scripts/fetch-manifest.ts
index e39bc08..aa5f467 100644
--- a/static/scripts/fetch-manifest.ts
+++ b/static/scripts/fetch-manifest.ts
@@ -24,15 +24,12 @@ export class ManifestFetcher {
     }
     const repos = await this._octokit.repos.listForOrg({ org });
     const manifestCache = this.checkManifestCache();
-    function makeUrl(org: string, repo: string, file: string) {
-      return `https://raw.githubusercontent.com/${org}/${repo}/development/${file}`;
-    }
 
     for (const repo of repos.data) {
-      const manifestUrl = makeUrl(org, repo.name, "manifest.json");
-      const manifest = await this.fetchActionManifest(manifestUrl);
+      const manifestUrl = this.createGithubRawEndpoint(org, repo.name, "development", "manifest.json");
+      const manifest = await this.fetchPluginManifest(manifestUrl);
       const decoded = this.decodeManifestFromFetch(manifest);
-      const readme = await this._fetchPluginReadme(makeUrl(org, repo.name, "README.md"));
+      const readme = await this.fetchPluginReadme(this.createGithubRawEndpoint(org, repo.name, "development", "README.md"));
 
       if (decoded) {
         manifestCache[manifestUrl] = { ...decoded, readme };
@@ -61,9 +58,9 @@ export class ManifestFetcher {
     }
   }
 
-  createActionEndpoint(owner: string, repo: string, branch: string) {
+  createGithubRawEndpoint(owner: string, repo: string, branch: string, path: string) {
     // no endpoint so we fetch the raw content from the owner/repo/branch
-    return `https://raw.githubusercontent.com/${owner}/${repo}/refs/heads/${branch}/manifest.json`;
+    return `https://raw.githubusercontent.com/${owner}/${repo}/refs/heads/${branch}/${path}`;
   }
 
   captureActionUrls(config: string) {
@@ -92,33 +89,7 @@ export class ManifestFetcher {
     return officialPluginConfig;
   }
 
-  async fetchWorkerManifest(workerUrl: string) {
-    const url = workerUrl + "/manifest.json";
-    try {
-      const response = await fetch(url, {
-        headers: {
-          "Content-Type": "application/json",
-        },
-        method: "GET",
-      });
-      return await response.json();
-    } catch (e) {
-      let error = e;
-      try {
-        const res = await fetch(url.replace(/development/g, "main"));
-        return await res.json();
-      } catch (e) {
-        error = e;
-      }
-      console.error(error);
-      if (error instanceof Error) {
-        return { workerUrl, error: error.message };
-      }
-      return { workerUrl, error: String(error) };
-    }
-  }
-
-  async fetchActionManifest(actionUrl: string) {
+  async fetchPluginManifest(actionUrl: string) {
     try {
       const response = await fetch(actionUrl);
       return await response.json();
@@ -131,24 +102,36 @@ export class ManifestFetcher {
     }
   }
 
-  private async _fetchPluginReadme(pluginUrl: string) {
+  async fetchPluginReadme(pluginUrl: string) {
+    async function handle404(result: string, octokit?: Octokit | null) {
+      if (result.includes("404: Not Found")) {
+        const [owner, repo] = pluginUrl.split("/").slice(3, 5);
+        const readme = await octokit?.repos.getContent({
+          owner,
+          repo,
+          path: "README.md",
+        });
+
+        if (readme && "content" in readme.data) {
+          return atob(readme.data.content);
+        } else {
+          return "No README.md found";
+        }
+      }
+
+      return result;
+    }
     try {
-      const response = await fetch(pluginUrl, {
-        headers: {
-          "Content-Type": "application/json",
-        },
-        method: "GET",
-      });
-      return await response.text();
+      const response = await fetch(pluginUrl, { signal: new AbortController().signal });
+      return await handle404(await response.text(), this._octokit);
     } catch (e) {
       let error = e;
       try {
-        const res = await fetch(pluginUrl.replace(/development/g, "main"));
-        return await res.text();
+        const res = await fetch(pluginUrl.replace(/development/g, "main"), { signal: new AbortController().signal });
+        return await handle404(await res.text(), this._octokit);
       } catch (e) {
         error = e;
       }
-      console.error(error);
       if (error instanceof Error) {
         return error.message;
       }
diff --git a/static/scripts/rendering/input-parsing.ts b/static/scripts/rendering/input-parsing.ts
index 5cc341c..0f36331 100644
--- a/static/scripts/rendering/input-parsing.ts
+++ b/static/scripts/rendering/input-parsing.ts
@@ -70,12 +70,15 @@ export function parseConfigInputs(
     if (expectedType === "boolean") {
       value = (input as HTMLInputElement).checked;
     } else if (expectedType === "object" || expectedType === "array") {
-      try {
-        value = JSON.parse((input as HTMLTextAreaElement).value);
-      } catch (e) {
-        console.error(e);
-        throw new Error(`Invalid JSON input for ${expectedType} at key "${key}": ${input.value}`);
-      }
+      if (!input.value) {
+        value = expectedType === "object" ? {} : [];
+      } else
+        try {
+          value = JSON.parse((input as HTMLTextAreaElement).value);
+        } catch (e) {
+          console.error(e);
+          throw new Error(`Invalid JSON input for ${expectedType} at key "${key}": ${input.value}`);
+        }
     } else {
       value = (input as HTMLInputElement).value;
     }
@@ -85,7 +88,12 @@ export function parseConfigInputs(
   if (validate(config)) {
     const missing = [];
     for (const key of required) {
-      if (!(config[key] || config[key] === "undefined" || config[key] === "null")) {
+      const isBoolean = schema.properties && schema.properties[key] && schema.properties[key].type === "boolean";
+      if ((isBoolean && config[key] === false) || config[key] === true) {
+        continue;
+      }
+
+      if (!config[key] || config[key] === "undefined" || config[key] === "null") {
         missing.push(key);
       }
     }
diff --git a/static/scripts/rendering/write-add-remove.ts b/static/scripts/rendering/write-add-remove.ts
index ea792e1..775a358 100644
--- a/static/scripts/rendering/write-add-remove.ts
+++ b/static/scripts/rendering/write-add-remove.ts
@@ -38,20 +38,15 @@ export function writeNewConfig(renderer: ManifestRenderer, option: "add" | "remo
   }
 
   renderer.configParser.loadConfig();
-
-  const officialPluginConfig: Record<string, { actionUrl?: string; workerUrl?: string }> = getOfficialPluginConfig();
-
-  const pluginName = pluginManifest.name;
-
   // this relies on the manifest matching the repo name
-  const normalizedPluginName = normalizePluginName(pluginName);
-
+  const normalizedPluginName = normalizePluginName(pluginManifest.name);
+  const officialPluginConfig: Record<string, { actionUrl?: string; workerUrl?: string }> = getOfficialPluginConfig();
   const pluginUrl = Object.keys(officialPluginConfig).find((url) => {
     return url.includes(normalizedPluginName);
   });
 
   if (!pluginUrl) {
-    toastNotification(`No plugin URL found for ${pluginName}.`, {
+    toastNotification(`No plugin URL found for ${normalizedPluginName}.`, {
       type: "error",
       shouldAutoDismiss: true,
     });