From 5add2819a9e9aea8b13dc115cb81c269b9e0109d Mon Sep 17 00:00:00 2001
From: hzrd149 <github@hzrd149.com>
Date: Fri, 16 Aug 2024 11:41:24 -0500
Subject: [PATCH] add blindspots feed

---
 .changeset/nasty-scissors-mate.md             |   5 +
 src/app.tsx                                   |  25 +++-
 src/classes/accounts/account.ts               |   9 +-
 src/classes/accounts/extension-account.ts     |  12 +-
 src/classes/accounts/nsec-account.ts          |   9 +-
 src/classes/pubkey-graph.ts                   |  14 +-
 src/components/layout/nav-items.tsx           |   6 +-
 src/services/account.ts                       |   6 +-
 src/views/discovery/blindspot/feed.tsx        | 107 ++++++++++++++++
 src/views/discovery/blindspot/index.tsx       | 121 ++++++++++++++++++
 .../dvm-feed/components/debug-chains.tsx      |  10 +-
 .../dvm-feed/components/dvm-avatar.tsx        |   4 +-
 .../dvm-feed/components/dvm-card.tsx          |  10 +-
 .../dvm-feed/components/dvm-name.tsx          |   6 +-
 .../dvm-feed/components/dvm-params.tsx        |   2 +-
 .../dvm-feed/components/feed-status.tsx       |  12 +-
 .../dvm-feed/components/feed.tsx              |   6 +-
 src/views/{ => discovery}/dvm-feed/feed.tsx   |  28 ++--
 src/views/{dvm-feed => discovery}/index.tsx   |  40 ++++--
 src/views/home/index.tsx                      |   9 +-
 .../user/components/user-profile-menu.tsx     |   8 ++
 21 files changed, 375 insertions(+), 74 deletions(-)
 create mode 100644 .changeset/nasty-scissors-mate.md
 create mode 100644 src/views/discovery/blindspot/feed.tsx
 create mode 100644 src/views/discovery/blindspot/index.tsx
 rename src/views/{ => discovery}/dvm-feed/components/debug-chains.tsx (93%)
 rename src/views/{ => discovery}/dvm-feed/components/dvm-avatar.tsx (89%)
 rename src/views/{ => discovery}/dvm-feed/components/dvm-card.tsx (76%)
 rename src/views/{ => discovery}/dvm-feed/components/dvm-name.tsx (80%)
 rename src/views/{ => discovery}/dvm-feed/components/dvm-params.tsx (93%)
 rename src/views/{ => discovery}/dvm-feed/components/feed-status.tsx (90%)
 rename src/views/{ => discovery}/dvm-feed/components/feed.tsx (70%)
 rename src/views/{ => discovery}/dvm-feed/feed.tsx (78%)
 rename src/views/{dvm-feed => discovery}/index.tsx (59%)

diff --git a/.changeset/nasty-scissors-mate.md b/.changeset/nasty-scissors-mate.md
new file mode 100644
index 000000000..c83077f77
--- /dev/null
+++ b/.changeset/nasty-scissors-mate.md
@@ -0,0 +1,5 @@
+---
+"nostrudel": minor
+---
+
+Add blindspots discovery feed
diff --git a/src/app.tsx b/src/app.tsx
index cc032fd17..c8b3b01b2 100644
--- a/src/app.tsx
+++ b/src/app.tsx
@@ -7,11 +7,14 @@ import Layout from "./components/layout";
 import DrawerSubViewProvider from "./providers/drawer-sub-view-provider";
 import useSetColorMode from "./hooks/use-set-color-mode";
 import { RouteProviders } from "./providers/route";
+import RequireCurrentAccount from "./providers/route/require-current-account";
 import GlobalStyles from "./styles";
 
 import HomeView from "./views/home/index";
-const DVMFeedHomeView = lazy(() => import("./views/dvm-feed/index"));
-const DVMFeedView = lazy(() => import("./views/dvm-feed/feed"));
+const DiscoveryHomeView = lazy(() => import("./views/discovery/index"));
+const DVMFeedView = lazy(() => import("./views/discovery/dvm-feed/feed"));
+const BlindspotHomeView = lazy(() => import("./views/discovery/blindspot"));
+const BlindspotFeedView = lazy(() => import("./views/discovery/blindspot/feed"));
 import SettingsView from "./views/settings";
 import NostrLinkView from "./views/link";
 import ProfileView from "./views/profile";
@@ -316,10 +319,22 @@ const router = createHashRouter([
         ],
       },
       {
-        path: "dvm",
+        path: "discovery",
         children: [
-          { path: ":addr", element: <DVMFeedView /> },
-          { path: "", element: <DVMFeedHomeView /> },
+          { path: "", element: <DiscoveryHomeView /> },
+          { path: "dvm/:addr", element: <DVMFeedView /> },
+          {
+            path: "blindspot",
+            element: (
+              <RequireCurrentAccount>
+                <Outlet />
+              </RequireCurrentAccount>
+            ),
+            children: [
+              { path: "", element: <BlindspotHomeView /> },
+              { path: ":pubkey", element: <BlindspotFeedView /> },
+            ],
+          },
         ],
       },
       { path: "search", element: <SearchView /> },
diff --git a/src/classes/accounts/account.ts b/src/classes/accounts/account.ts
index bf0c561e2..aecebdf00 100644
--- a/src/classes/accounts/account.ts
+++ b/src/classes/accounts/account.ts
@@ -4,9 +4,16 @@ import { Nip07Signer } from "../../types/nostr-extensions";
 export class Account {
   readonly type: string = "unknown";
   pubkey: string;
-  signer?: Nip07Signer;
   localSettings?: AppSettings;
 
+  protected _signer?: Nip07Signer | undefined;
+  public get signer(): Nip07Signer | undefined {
+    return this._signer;
+  }
+  public set signer(value: Nip07Signer | undefined) {
+    this._signer = value;
+  }
+
   get readonly() {
     return !this.signer;
   }
diff --git a/src/classes/accounts/extension-account.ts b/src/classes/accounts/extension-account.ts
index 8c9691c98..ce0787414 100644
--- a/src/classes/accounts/extension-account.ts
+++ b/src/classes/accounts/extension-account.ts
@@ -3,16 +3,16 @@ import { Account } from "./account";
 
 export default class ExtensionAccount extends Account {
   readonly type = "extension";
-  signer?: Nip07Signer;
 
-  constructor(pubkey: string) {
-    super(pubkey);
-    this.signer = window.nostr;
+  override get signer() {
+    if (!window.nostr) throw new Error("Missing NIP-07 signer extension");
+    return window.nostr;
+  }
+  set signer(signer: Nip07Signer) {
+    throw new Error("Cant update signer");
   }
 
   fromJSON(data: any): this {
-    if (!window.nostr) throw new Error("Missing NIP-07 signer extension");
-    this.signer = window.nostr;
     return super.fromJSON(data);
   }
 }
diff --git a/src/classes/accounts/nsec-account.ts b/src/classes/accounts/nsec-account.ts
index 43b6395d6..6641107cb 100644
--- a/src/classes/accounts/nsec-account.ts
+++ b/src/classes/accounts/nsec-account.ts
@@ -4,7 +4,14 @@ import { Account } from "./account";
 
 export default class NsecAccount extends Account {
   readonly type = "nsec";
-  declare signer?: SimpleSigner;
+
+  protected declare _signer?: SimpleSigner | undefined;
+  public get signer(): SimpleSigner | undefined {
+    return this._signer;
+  }
+  public set signer(value: SimpleSigner | undefined) {
+    this._signer = value;
+  }
 
   constructor(pubkey: string) {
     super(pubkey);
diff --git a/src/classes/pubkey-graph.ts b/src/classes/pubkey-graph.ts
index a85161702..c5c4a5744 100644
--- a/src/classes/pubkey-graph.ts
+++ b/src/classes/pubkey-graph.ts
@@ -1,12 +1,19 @@
 import { NostrEvent } from "nostr-tools";
 import _throttle from "lodash.throttle";
-import { logger } from "../helpers/debug";
 
-export class PubkeyGraph {
+import { logger } from "../helpers/debug";
+import EventEmitter from "eventemitter3";
+
+type EventMap = {
+  computed: [];
+};
+
+export class PubkeyGraph extends EventEmitter<EventMap> {
   /** the pubkey at the center of it all */
   root: string;
   log = logger.extend("PubkeyGraph");
 
+  /** a map of what pubkeys follow other pubkeys */
   connections = new Map<string, string[]>();
   distance = new Map<string, number>();
 
@@ -14,6 +21,7 @@ export class PubkeyGraph {
   connectionCount = new Map<string, number>();
 
   constructor(root: string) {
+    super();
     this.root = root;
   }
 
@@ -128,6 +136,8 @@ export class PubkeyGraph {
     next.add(this.root);
     walkLevel(0);
     console.timeEnd("walk");
+
+    this.emit("computed");
   }
 
   getPaths(pubkey: string, maxLength = 2) {
diff --git a/src/components/layout/nav-items.tsx b/src/components/layout/nav-items.tsx
index ff080384b..f891e1aad 100644
--- a/src/components/layout/nav-items.tsx
+++ b/src/components/layout/nav-items.tsx
@@ -48,7 +48,7 @@ export default function NavItems() {
   else if (location.pathname === "/") active = "notes";
   else if (location.pathname.startsWith("/notifications")) active = "notifications";
   else if (location.pathname.startsWith("/launchpad")) active = "launchpad";
-  else if (location.pathname.startsWith("/dvm")) active = "dvm";
+  else if (location.pathname.startsWith("/discovery")) active = "discovery";
   else if (location.pathname.startsWith("/dm")) active = "dm";
   else if (location.pathname.startsWith("/streams")) active = "streams";
   else if (location.pathname.startsWith("/relays")) active = "relays";
@@ -120,9 +120,9 @@ export default function NavItems() {
       </Button>
       <Button
         as={RouterLink}
-        to="/dvm"
+        to="/discovery"
         leftIcon={<PuzzlePiece01 boxSize={6} />}
-        colorScheme={active === "dvm" ? "primary" : undefined}
+        colorScheme={active === "discovery" ? "primary" : undefined}
         {...buttonProps}
       >
         Discover
diff --git a/src/services/account.ts b/src/services/account.ts
index 441737049..97ecbb118 100644
--- a/src/services/account.ts
+++ b/src/services/account.ts
@@ -7,6 +7,7 @@ import PasswordAccount from "../classes/accounts/password-account";
 import PubkeyAccount from "../classes/accounts/pubkey-account";
 import SerialPortAccount from "../classes/accounts/serial-port-account";
 import { PersistentSubject } from "../classes/subject";
+import { logger } from "../helpers/debug";
 import db from "./db";
 import { AppSettings } from "./settings/migrations";
 
@@ -23,6 +24,7 @@ export type LocalAccount = CommonAccount & {
 };
 
 class AccountService {
+  log = logger.extend("AccountService");
   loading = new PersistentSubject(true);
   accounts = new PersistentSubject<Account[]>([]);
   current = new PersistentSubject<Account | null>(null);
@@ -36,7 +38,9 @@ class AccountService {
         try {
           const account = this.createAccountFromDatabaseRecord(data);
           if (account) accounts.push(account);
-        } catch (error) {}
+        } catch (error) {
+          this.log("Failed to load account", data, error);
+        }
       }
 
       this.accounts.next(accounts);
diff --git a/src/views/discovery/blindspot/feed.tsx b/src/views/discovery/blindspot/feed.tsx
new file mode 100644
index 000000000..ad21be3aa
--- /dev/null
+++ b/src/views/discovery/blindspot/feed.tsx
@@ -0,0 +1,107 @@
+import { useCallback, useMemo } from "react";
+import { Divider, Flex, Heading, Spacer, Spinner, useDisclosure } from "@chakra-ui/react";
+import { Navigate } from "react-router-dom";
+import { kinds, NostrEvent } from "nostr-tools";
+
+import VerticalPageLayout from "../../../components/vertical-page-layout";
+import useParamsProfilePointer from "../../../hooks/use-params-pubkey-pointer";
+import useTimelineLoader from "../../../hooks/use-timeline-loader";
+import useCurrentAccount from "../../../hooks/use-current-account";
+import useUserContactList from "../../../hooks/use-user-contact-list";
+import { getPubkeysFromList } from "../../../helpers/nostr/lists";
+import { useReadRelays } from "../../../hooks/use-client-relays";
+import TimelinePage, { useTimelinePageEventFilter } from "../../../components/timeline-page";
+import KindSelectionProvider, { useKindSelectionContext } from "../../../providers/local/kind-selection-provider";
+import NoteFilterTypeButtons from "../../../components/note-filter-type-buttons";
+import TimelineViewTypeButtons from "../../../components/timeline-page/timeline-view-type";
+import Telescope from "../../../components/icons/telescope";
+import UserAvatar from "../../../components/user/user-avatar";
+import UserAvatarLink from "../../../components/user/user-avatar-link";
+import BackButton from "../../../components/router/back-button";
+import UserLink from "../../../components/user/user-link";
+import useClientSideMuteFilter from "../../../hooks/use-client-side-mute-filter";
+import { isReply, isRepost } from "../../../helpers/nostr/event";
+
+function BlindspotFeedPage({ pubkey }: { pubkey: string }) {
+  const account = useCurrentAccount()!;
+  const contacts = useUserContactList(account.pubkey);
+  const otherContacts = useUserContactList(pubkey);
+  const readRelays = useReadRelays();
+
+  const blindspot = useMemo(() => {
+    if (!contacts || !otherContacts) return [];
+
+    const mine = new Set(getPubkeysFromList(contacts).map((p) => p.pubkey));
+    const other = new Set(getPubkeysFromList(otherContacts).map((p) => p.pubkey));
+
+    return Array.from(other).filter((p) => !mine.has(p) && p !== account.pubkey);
+  }, [contacts, otherContacts, account.pubkey]);
+
+  const showReplies = useDisclosure({ defaultIsOpen: localStorage.getItem("show-replies") === "true" });
+  const showReposts = useDisclosure({ defaultIsOpen: localStorage.getItem("show-reposts") !== "false" });
+
+  const timelinePageEventFilter = useTimelinePageEventFilter();
+  const muteFilter = useClientSideMuteFilter();
+  const eventFilter = useCallback(
+    (event: NostrEvent) => {
+      if (muteFilter(event)) return false;
+      if (!showReplies.isOpen && isReply(event)) return false;
+      if (!showReposts.isOpen && isRepost(event)) return false;
+      return timelinePageEventFilter(event);
+    },
+    [timelinePageEventFilter, showReplies.isOpen, showReposts.isOpen, muteFilter],
+  );
+
+  const { kinds } = useKindSelectionContext();
+  const timeline = useTimelineLoader(
+    `blnidspot-${account.pubkey}-${pubkey}-${kinds.join(",")}`,
+    readRelays,
+    blindspot.length > 0 ? [{ authors: blindspot, kinds }] : undefined,
+    { eventFilter },
+  );
+
+  if (!contacts)
+    return (
+      <Flex gap="4" alignItems="center" justifyContent="center" flex={1}>
+        <Spinner />
+        <Heading size="lg">Loading your contacts...</Heading>
+      </Flex>
+    );
+  if (!otherContacts)
+    return (
+      <Flex gap="4" alignItems="center" justifyContent="center" flex={1}>
+        <Spinner />
+        <Heading size="lg">Loading other users contacts...</Heading>
+      </Flex>
+    );
+
+  return (
+    <VerticalPageLayout>
+      <Flex gap="2" alignItems="center">
+        <BackButton />
+        <Telescope boxSize={6} />
+        <UserAvatarLink size="sm" pubkey={pubkey} />
+        <UserLink pubkey={pubkey} isTruncated fontWeight="bold" />
+        <NoteFilterTypeButtons showReplies={showReplies} showReposts={showReposts} />
+        <Spacer />
+        <TimelineViewTypeButtons />
+      </Flex>
+
+      <TimelinePage timeline={timeline} />
+    </VerticalPageLayout>
+  );
+}
+
+const defaultKinds = [kinds.ShortTextNote, kinds.Repost, kinds.GenericRepost];
+
+export default function BlindspotFeedView() {
+  const pointer = useParamsProfilePointer("pubkey");
+
+  if (!pointer) return <Navigate to="/discovery/blindspot" />;
+
+  return (
+    <KindSelectionProvider initKinds={defaultKinds}>
+      <BlindspotFeedPage pubkey={pointer.pubkey} />
+    </KindSelectionProvider>
+  );
+}
diff --git a/src/views/discovery/blindspot/index.tsx b/src/views/discovery/blindspot/index.tsx
new file mode 100644
index 000000000..b25d53cca
--- /dev/null
+++ b/src/views/discovery/blindspot/index.tsx
@@ -0,0 +1,121 @@
+import { memo, useEffect, useMemo, useState } from "react";
+import {
+  Alert,
+  AlertDescription,
+  AlertIcon,
+  AlertTitle,
+  Box,
+  Card,
+  Heading,
+  Select,
+  SimpleGrid,
+  Text,
+  useForceUpdate,
+} from "@chakra-ui/react";
+import { Link as RouterLink } from "react-router-dom";
+import { nip19 } from "nostr-tools";
+
+import useCurrentAccount from "../../../hooks/use-current-account";
+import useUserContactList from "../../../hooks/use-user-contact-list";
+import { useWebOfTrust } from "../../../providers/global/web-of-trust-provider";
+import UserAvatar from "../../../components/user/user-avatar";
+import UserName from "../../../components/user/user-name";
+import HoverLinkOverlay from "../../../components/hover-link-overlay";
+import VerticalPageLayout from "../../../components/vertical-page-layout";
+
+const UserCard = memo(({ pubkey, blindspot }: { pubkey: string; blindspot: string[] }) => {
+  return (
+    <Card display="block" p="4">
+      <UserAvatar pubkey={pubkey} mr="4" float="left" />
+      <Heading size="md" isTruncated>
+        <HoverLinkOverlay as={RouterLink} to={`/discovery/blindspot/${nip19.npubEncode(pubkey)}`}>
+          <UserName pubkey={pubkey} />
+        </HoverLinkOverlay>
+      </Heading>
+      <Text>Following {blindspot.length} users you don't follow</Text>
+    </Card>
+  );
+});
+
+export default function BlindspotHomeView() {
+  const account = useCurrentAccount()!;
+  const [sort, setSort] = useState("quality"); // follows, quality
+
+  const contacts = useUserContactList(account.pubkey);
+  const graph = useWebOfTrust();
+
+  const update = useForceUpdate();
+  useEffect(() => {
+    graph?.on("computed", update);
+    return () => {
+      graph?.off("computed", update);
+    };
+  }, [graph]);
+
+  const pubkeys = useMemo(() => graph?.connections.get(account.pubkey), [contacts]);
+
+  const blindspots = useMemo(() => {
+    if (!contacts || !pubkeys) return [];
+
+    const arr = Array.from(pubkeys)
+      .map((pubkey) => {
+        const following = graph?.connections.get(pubkey);
+        const blindspot = following?.filter((p) => !pubkeys.includes(p) && p !== account.pubkey) ?? [];
+
+        return { pubkey, blindspot };
+      })
+      .filter((p) => p.blindspot.length > 2);
+
+    if (sort === "follows") {
+      return arr.sort((a, b) => b.blindspot.length - a.blindspot.length);
+    } else {
+      // the average distance to pubkeys in the blindspot
+      const quality = new Map<string, number>();
+      for (const { pubkey, blindspot } of arr) {
+        const total = blindspot.reduce((t, p) => t + (graph?.distance.get(p) ?? 0), 0);
+        quality.set(pubkey, total / blindspot.length);
+      }
+
+      return arr.sort((a, b) => quality.get(a.pubkey)! - quality.get(b.pubkey)!);
+    }
+  }, [account.pubkey, pubkeys, graph, sort]);
+
+  return (
+    <VerticalPageLayout>
+      <Box>
+        <Heading>Blind spots</Heading>
+        <Text fontStyle="italic">Pick another user and see what they are seeing that your not.</Text>
+      </Box>
+      <Select ml="auto" maxW="48" value={sort} onChange={(e) => setSort(e.target.value)}>
+        <option value="quality">Quality</option>
+        <option value="follows">Follows</option>
+      </Select>
+
+      {blindspots.length > 0 ? (
+        <SimpleGrid columns={{ base: 1, md: 2, xl: 3 }} spacing="4">
+          {blindspots.map(({ pubkey, blindspot }) => (
+            <UserCard key={pubkey} blindspot={blindspot} pubkey={pubkey} />
+          ))}
+        </SimpleGrid>
+      ) : (
+        <Alert
+          status="info"
+          variant="subtle"
+          flexDirection="column"
+          alignItems="center"
+          justifyContent="center"
+          textAlign="center"
+          height="200px"
+        >
+          <AlertIcon boxSize="40px" mr={0} />
+          <AlertTitle mt={4} mb={1} fontSize="lg">
+            No blind spots!
+          </AlertTitle>
+          <AlertDescription maxWidth="sm">
+            Unable to find any blind spots. maybe try following some people?
+          </AlertDescription>
+        </Alert>
+      )}
+    </VerticalPageLayout>
+  );
+}
diff --git a/src/views/dvm-feed/components/debug-chains.tsx b/src/views/discovery/dvm-feed/components/debug-chains.tsx
similarity index 93%
rename from src/views/dvm-feed/components/debug-chains.tsx
rename to src/views/discovery/dvm-feed/components/debug-chains.tsx
index dfe528229..17ba7f8ef 100644
--- a/src/views/dvm-feed/components/debug-chains.tsx
+++ b/src/views/discovery/dvm-feed/components/debug-chains.tsx
@@ -14,12 +14,12 @@ import {
   Text,
   useDisclosure,
 } from "@chakra-ui/react";
-import { ChainedDVMJob, getEventIdsFromJobs, getRequestInput, getRequestRelays } from "../../../helpers/nostr/dvm";
+import { ChainedDVMJob, getEventIdsFromJobs, getRequestInput, getRequestRelays } from "../../../../helpers/nostr/dvm";
 import dayjs from "dayjs";
-import { truncatedId } from "../../../helpers/nostr/event";
-import { CopyIconButton } from "../../../components/copy-icon-button";
-import { NostrEvent } from "../../../types/nostr-event";
-import UserLink from "../../../components/user/user-link";
+import { truncatedId } from "../../../../helpers/nostr/event";
+import { CopyIconButton } from "../../../../components/copy-icon-button";
+import { NostrEvent } from "../../../../types/nostr-event";
+import UserLink from "../../../../components/user/user-link";
 
 function JobResult({ result }: { result: NostrEvent }) {
   return (
diff --git a/src/views/dvm-feed/components/dvm-avatar.tsx b/src/views/discovery/dvm-feed/components/dvm-avatar.tsx
similarity index 89%
rename from src/views/dvm-feed/components/dvm-avatar.tsx
rename to src/views/discovery/dvm-feed/components/dvm-avatar.tsx
index d678253e1..ef2d9e75a 100644
--- a/src/views/dvm-feed/components/dvm-avatar.tsx
+++ b/src/views/discovery/dvm-feed/components/dvm-avatar.tsx
@@ -3,10 +3,10 @@ import { Link } from "react-router-dom";
 import { nip19 } from "nostr-tools";
 import { Box, BoxProps } from "@chakra-ui/react";
 
-import useUserMetadata from "../../../hooks/use-user-metadata";
+import useUserMetadata from "../../../../hooks/use-user-metadata";
 
 import { AddressPointer } from "nostr-tools/nip19";
-import useDVMMetadata from "../../../hooks/use-dvm-metadata";
+import useDVMMetadata from "../../../../hooks/use-dvm-metadata";
 
 type DVMAvatarProps = {
   pointer: AddressPointer;
diff --git a/src/views/dvm-feed/components/dvm-card.tsx b/src/views/discovery/dvm-feed/components/dvm-card.tsx
similarity index 76%
rename from src/views/dvm-feed/components/dvm-card.tsx
rename to src/views/discovery/dvm-feed/components/dvm-card.tsx
index 336ebca85..c7ac420dd 100644
--- a/src/views/dvm-feed/components/dvm-card.tsx
+++ b/src/views/discovery/dvm-feed/components/dvm-card.tsx
@@ -3,13 +3,13 @@ import { Link as RouterLink, To } from "react-router-dom";
 import { useMemo } from "react";
 import { AddressPointer } from "nostr-tools/nip19";
 
-import { NostrEvent } from "../../../types/nostr-event";
-import HoverLinkOverlay from "../../../components/hover-link-overlay";
+import { NostrEvent } from "../../../../types/nostr-event";
+import HoverLinkOverlay from "../../../../components/hover-link-overlay";
 import { DVMAvatarLink } from "./dvm-avatar";
-import { getEventAddressPointer } from "../../../helpers/nostr/event";
+import { getEventAddressPointer } from "../../../../helpers/nostr/event";
 import { DVMName } from "./dvm-name";
-import DebugEventButton from "../../../components/debug-modal/debug-event-button";
-import useEventIntersectionRef from "../../../hooks/use-event-intersection-ref";
+import DebugEventButton from "../../../../components/debug-modal/debug-event-button";
+import useEventIntersectionRef from "../../../../hooks/use-event-intersection-ref";
 
 export default function DVMCard({
   appData,
diff --git a/src/views/dvm-feed/components/dvm-name.tsx b/src/views/discovery/dvm-feed/components/dvm-name.tsx
similarity index 80%
rename from src/views/dvm-feed/components/dvm-name.tsx
rename to src/views/discovery/dvm-feed/components/dvm-name.tsx
index 257483674..ce504b3ca 100644
--- a/src/views/dvm-feed/components/dvm-name.tsx
+++ b/src/views/discovery/dvm-feed/components/dvm-name.tsx
@@ -2,10 +2,10 @@ import { Link, LinkProps, Text, TextProps } from "@chakra-ui/react";
 import { Link as RouterLink } from "react-router-dom";
 import { nip19 } from "nostr-tools";
 
-import useUserMetadata from "../../../hooks/use-user-metadata";
-import { getDisplayName } from "../../../helpers/nostr/user-metadata";
+import useUserMetadata from "../../../../hooks/use-user-metadata";
+import { getDisplayName } from "../../../../helpers/nostr/user-metadata";
 import { AddressPointer } from "nostr-tools/nip19";
-import useDVMMetadata from "../../../hooks/use-dvm-metadata";
+import useDVMMetadata from "../../../../hooks/use-dvm-metadata";
 
 export function DVMName({
   pointer,
diff --git a/src/views/dvm-feed/components/dvm-params.tsx b/src/views/discovery/dvm-feed/components/dvm-params.tsx
similarity index 93%
rename from src/views/dvm-feed/components/dvm-params.tsx
rename to src/views/discovery/dvm-feed/components/dvm-params.tsx
index 436451be1..e566f5093 100644
--- a/src/views/dvm-feed/components/dvm-params.tsx
+++ b/src/views/discovery/dvm-feed/components/dvm-params.tsx
@@ -1,5 +1,5 @@
 import { AddressPointer } from "nostr-tools/nip19";
-import useDVMMetadata from "../../../hooks/use-dvm-metadata";
+import useDVMMetadata from "../../../../hooks/use-dvm-metadata";
 import { Select } from "@chakra-ui/react";
 
 export default function DVMParams({
diff --git a/src/views/dvm-feed/components/feed-status.tsx b/src/views/discovery/dvm-feed/components/feed-status.tsx
similarity index 90%
rename from src/views/dvm-feed/components/feed-status.tsx
rename to src/views/discovery/dvm-feed/components/feed-status.tsx
index 2c3e99c10..644d1cd0e 100644
--- a/src/views/dvm-feed/components/feed-status.tsx
+++ b/src/views/discovery/dvm-feed/components/feed-status.tsx
@@ -20,15 +20,15 @@ import {
   DVM_CONTENT_DISCOVERY_JOB_KIND,
   getJobStatusType,
   getResponseFromDVM,
-} from "../../../helpers/nostr/dvm";
-import { InlineInvoiceCard } from "../../../components/lightning/inline-invoice-card";
-import { DraftNostrEvent } from "../../../types/nostr-event";
-import { useReadRelays } from "../../../hooks/use-client-relays";
+} from "../../../../helpers/nostr/dvm";
+import { InlineInvoiceCard } from "../../../../components/lightning/inline-invoice-card";
+import { DraftNostrEvent } from "../../../../types/nostr-event";
+import { useReadRelays } from "../../../../hooks/use-client-relays";
 import { DVMAvatarLink } from "./dvm-avatar";
 import DVMLink from "./dvm-name";
 import { AddressPointer } from "nostr-tools/nip19";
-import useUserMailboxes from "../../../hooks/use-user-mailboxes";
-import { usePublishEvent } from "../../../providers/global/publish-provider";
+import useUserMailboxes from "../../../../hooks/use-user-mailboxes";
+import { usePublishEvent } from "../../../../providers/global/publish-provider";
 
 function NextPageButton({ chain, pointer }: { pointer: AddressPointer; chain: ChainedDVMJob[] }) {
   const publish = usePublishEvent();
diff --git a/src/views/dvm-feed/components/feed.tsx b/src/views/discovery/dvm-feed/components/feed.tsx
similarity index 70%
rename from src/views/dvm-feed/components/feed.tsx
rename to src/views/discovery/dvm-feed/components/feed.tsx
index 7add0ed2b..0116f61f6 100644
--- a/src/views/dvm-feed/components/feed.tsx
+++ b/src/views/discovery/dvm-feed/components/feed.tsx
@@ -1,8 +1,8 @@
-import { ChainedDVMJob, getEventIdsFromJobs } from "../../../helpers/nostr/dvm";
+import { ChainedDVMJob, getEventIdsFromJobs } from "../../../../helpers/nostr/dvm";
 import FeedStatus from "./feed-status";
 import { AddressPointer } from "nostr-tools/nip19";
-import useSingleEvents from "../../../hooks/use-single-events";
-import TimelineItem from "../../../components/timeline-page/generic-note-timeline/timeline-item";
+import useSingleEvents from "../../../../hooks/use-single-events";
+import TimelineItem from "../../../../components/timeline-page/generic-note-timeline/timeline-item";
 
 function FeedEvents({ chain }: { chain: ChainedDVMJob[] }) {
   const eventIds = getEventIdsFromJobs(chain);
diff --git a/src/views/dvm-feed/feed.tsx b/src/views/discovery/dvm-feed/feed.tsx
similarity index 78%
rename from src/views/dvm-feed/feed.tsx
rename to src/views/discovery/dvm-feed/feed.tsx
index 1d4fd97c2..a206d4c7d 100644
--- a/src/views/dvm-feed/feed.tsx
+++ b/src/views/discovery/dvm-feed/feed.tsx
@@ -22,23 +22,23 @@ import {
   flattenJobChain,
   chainJobs,
   groupEventsIntoJobs,
-} from "../../helpers/nostr/dvm";
-import { DraftNostrEvent } from "../../types/nostr-event";
-import VerticalPageLayout from "../../components/vertical-page-layout";
-import useSubject from "../../hooks/use-subject";
-import useTimelineLoader from "../../hooks/use-timeline-loader";
-import { useReadRelays } from "../../hooks/use-client-relays";
-import useCurrentAccount from "../../hooks/use-current-account";
-import RequireCurrentAccount from "../../providers/route/require-current-account";
-import { CodeIcon } from "../../components/icons";
+} from "../../../helpers/nostr/dvm";
+import { DraftNostrEvent } from "../../../types/nostr-event";
+import VerticalPageLayout from "../../../components/vertical-page-layout";
+import useSubject from "../../../hooks/use-subject";
+import useTimelineLoader from "../../../hooks/use-timeline-loader";
+import { useReadRelays } from "../../../hooks/use-client-relays";
+import useCurrentAccount from "../../../hooks/use-current-account";
+import RequireCurrentAccount from "../../../providers/route/require-current-account";
+import { CodeIcon } from "../../../components/icons";
 import DebugChains from "./components/debug-chains";
 import Feed from "./components/feed";
 import { AddressPointer } from "nostr-tools/nip19";
-import useParamsAddressPointer from "../../hooks/use-params-address-pointer";
+import useParamsAddressPointer from "../../../hooks/use-params-address-pointer";
 import DVMParams from "./components/dvm-params";
-import useUserMailboxes from "../../hooks/use-user-mailboxes";
-import { usePublishEvent } from "../../providers/global/publish-provider";
-import { getHumanReadableCoordinate } from "../../services/replaceable-events";
+import useUserMailboxes from "../../../hooks/use-user-mailboxes";
+import { usePublishEvent } from "../../../providers/global/publish-provider";
+import { getHumanReadableCoordinate } from "../../../services/replaceable-events";
 
 function DVMFeedPage({ pointer }: { pointer: AddressPointer }) {
   const [since] = useState(() => dayjs().subtract(1, "hour").unix());
@@ -95,7 +95,7 @@ function DVMFeedPage({ pointer }: { pointer: AddressPointer }) {
   return (
     <VerticalPageLayout>
       <Flex gap="2">
-        <Button leftIcon={<ChevronLeftIcon />} onClick={() => navigate(-1)}>
+        <Button leftIcon={<ChevronLeftIcon boxSize={6} />} onClick={() => navigate(-1)}>
           Back
         </Button>
         <DVMParams pointer={pointer} params={params} onChange={setParams} />
diff --git a/src/views/dvm-feed/index.tsx b/src/views/discovery/index.tsx
similarity index 59%
rename from src/views/dvm-feed/index.tsx
rename to src/views/discovery/index.tsx
index da3ff4412..4f3215279 100644
--- a/src/views/dvm-feed/index.tsx
+++ b/src/views/discovery/index.tsx
@@ -1,7 +1,8 @@
-import { Heading, Link, SimpleGrid, Text } from "@chakra-ui/react";
+import { Card, Flex, Heading, Link, LinkBox, SimpleGrid, Text } from "@chakra-ui/react";
+import { Link as RouterLink } from "react-router-dom";
 
 import VerticalPageLayout from "../../components/vertical-page-layout";
-import DVMCard from "./components/dvm-card";
+import DVMCard from "./dvm-feed/components/dvm-card";
 import { DVM_CONTENT_DISCOVERY_JOB_KIND } from "../../helpers/nostr/dvm";
 import useTimelineLoader from "../../hooks/use-timeline-loader";
 import { useReadRelays } from "../../hooks/use-client-relays";
@@ -10,8 +11,10 @@ import RequireCurrentAccount from "../../providers/route/require-current-account
 import { getEventCoordinate } from "../../helpers/nostr/event";
 import { useTimelineCurserIntersectionCallback } from "../../hooks/use-timeline-cursor-intersection-callback";
 import IntersectionObserverProvider from "../../providers/local/intersection-observer";
+import Telescope from "../../components/icons/telescope";
+import HoverLinkOverlay from "../../components/hover-link-overlay";
 
-function DVMFeedHomePage() {
+function DVMFeeds() {
   const readRelays = useReadRelays();
   const timeline = useTimelineLoader("content-discovery-dvms", readRelays, {
     kinds: [31990],
@@ -23,8 +26,10 @@ function DVMFeedHomePage() {
   const callback = useTimelineCurserIntersectionCallback(timeline);
 
   return (
-    <VerticalPageLayout>
-      <Heading size="md">DVM Feeds</Heading>
+    <>
+      <Heading size="md" mt="4">
+        DVM Feeds
+      </Heading>
       <Text>
         Learn more about data vending machines here:{" "}
         <Link href="https://www.data-vending-machines.org/" isExternal color="blue.500">
@@ -34,18 +39,37 @@ function DVMFeedHomePage() {
       <IntersectionObserverProvider callback={callback}>
         <SimpleGrid columns={{ base: 1, md: 1, lg: 2, xl: 3 }} spacing="2">
           {DMVs.map((appData) => (
-            <DVMCard key={appData.id} appData={appData} to={`/dvm/${getEventCoordinate(appData)}`} />
+            <DVMCard key={appData.id} appData={appData} to={`/discovery/dvm/${getEventCoordinate(appData)}`} />
           ))}
         </SimpleGrid>
       </IntersectionObserverProvider>
+    </>
+  );
+}
+
+function DiscoveryHomePage() {
+  return (
+    <VerticalPageLayout>
+      <Card as={LinkBox} display="block" p="4" maxW="lg">
+        <Telescope boxSize={16} float="left" ml="2" my="2" mr="6" />
+        <Flex direction="column">
+          <Heading size="md">
+            <HoverLinkOverlay as={RouterLink} to="/discovery/blindspot">
+              Blind spots
+            </HoverLinkOverlay>
+          </Heading>
+          <Text>What are other users seeing that you are not?</Text>
+        </Flex>
+      </Card>
+      <DVMFeeds />
     </VerticalPageLayout>
   );
 }
 
-export default function DVMFeedHomeView() {
+export default function DiscoveryHomeView() {
   return (
     <RequireCurrentAccount>
-      <DVMFeedHomePage />
+      <DiscoveryHomePage />
     </RequireCurrentAccount>
   );
 }
diff --git a/src/views/home/index.tsx b/src/views/home/index.tsx
index a92a9733f..1acb8ee02 100644
--- a/src/views/home/index.tsx
+++ b/src/views/home/index.tsx
@@ -14,14 +14,7 @@ import NoteFilterTypeButtons from "../../components/note-filter-type-buttons";
 import KindSelectionProvider, { useKindSelectionContext } from "../../providers/local/kind-selection-provider";
 import { useReadRelays } from "../../hooks/use-client-relays";
 
-const defaultKinds = [
-  kinds.ShortTextNote,
-  kinds.Repost,
-  kinds.GenericRepost,
-  kinds.LongFormArticle,
-  kinds.RecommendRelay,
-  kinds.BadgeAward,
-];
+const defaultKinds = [kinds.ShortTextNote, kinds.Repost, kinds.GenericRepost, kinds.LongFormArticle];
 
 function HomePage() {
   const showReplies = useDisclosure({ defaultIsOpen: localStorage.getItem("show-replies") === "true" });
diff --git a/src/views/user/components/user-profile-menu.tsx b/src/views/user/components/user-profile-menu.tsx
index 0f8780826..764affa8f 100644
--- a/src/views/user/components/user-profile-menu.tsx
+++ b/src/views/user/components/user-profile-menu.tsx
@@ -24,6 +24,7 @@ import userMailboxesService from "../../../services/user-mailboxes";
 import { useContext } from "react";
 import { AppHandlerContext } from "../../../providers/route/app-handler-provider";
 import PubkeyAccount from "../../../classes/accounts/pubkey-account";
+import Telescope from "../../../components/icons/telescope";
 
 export const UserProfileMenu = ({
   pubkey,
@@ -60,6 +61,13 @@ export const UserProfileMenu = ({
         <MenuItem icon={<DirectMessagesIcon fontSize="1.5em" />} as={RouterLink} to={`/dm/${nip19.npubEncode(pubkey)}`}>
           Direct messages
         </MenuItem>
+        <MenuItem
+          icon={<Telescope fontSize="1.5em" />}
+          as={RouterLink}
+          to={`/discovery/blindspot/${nip19.npubEncode(pubkey)}`}
+        >
+          Blind spot
+        </MenuItem>
         <MenuItem icon={<SpyIcon fontSize="1.5em" />} onClick={() => loginAsUser()}>
           Login as user
         </MenuItem>