diff --git a/appview/pages/markup/markdown.go b/appview/pages/markup/markdown.go
index 890aed7d..205b5882 100644
--- a/appview/pages/markup/markdown.go
+++ b/appview/pages/markup/markdown.go
@@ -253,7 +253,7 @@ func (rctx *RenderContext) relativeLinkTransformer(link *ast.Link) {
 
 	actualPath := rctx.actualPath(dst)
 
-	newPath := path.Join("/", rctx.RepoInfo.FullName(), "tree", rctx.RepoInfo.Ref, actualPath)
+	newPath := path.Join("/", rctx.RepoInfo.UrlBase(), "tree", rctx.RepoInfo.Ref, actualPath)
 	link.Destination = []byte(newPath)
 }
 
@@ -264,7 +264,7 @@ func (rctx *RenderContext) imageToRawTransformer(dst string) string {
 
 	actualPath := rctx.actualPath(dst)
 
-	newDest := path.Join("/", rctx.RepoInfo.FullName(), "raw", rctx.RepoInfo.Ref, actualPath)
+	newDest := path.Join("/", rctx.RepoInfo.UrlBase(), "raw", rctx.RepoInfo.Ref, actualPath)
 	return newDest
 }
 
diff --git a/appview/pages/repoinfo/repoinfo.go b/appview/pages/repoinfo/repoinfo.go
index bbd870aa..03fc4cab 100644
--- a/appview/pages/repoinfo/repoinfo.go
+++ b/appview/pages/repoinfo/repoinfo.go
@@ -30,6 +30,16 @@ func (r RepoInfo) FullName() string {
 	return path.Join(r.owner(), r.Slug())
 }
 
+// UrlBase returns the URL prefix used to build intra-repo links.
+// In project mode the owner is implicit so only the rkey is needed;
+// otherwise it returns the full owner/rkey path.
+func (r RepoInfo) UrlBase() string {
+	if r.ProjectMode {
+		return r.Rkey
+	}
+	return r.FullName()
+}
+
 func (r RepoInfo) RepoIdentifier() string {
 	if r.RepoDid != "" {
 		return r.RepoDid
@@ -74,6 +84,7 @@ type RepoInfo struct {
 	OwnerDid    string
 	OwnerHandle string
 	RepoDid     string
+	ProjectMode bool
 	Description string
 	Website     string
 	Topics      []string
diff --git a/appview/pages/templates/layouts/repobase.html b/appview/pages/templates/layouts/repobase.html
index ee39192b..469901b0 100644
--- a/appview/pages/templates/layouts/repobase.html
+++ b/appview/pages/templates/layouts/repobase.html
@@ -30,7 +30,7 @@
                     {{ $icon := index $item 2 }}
                     {{ $meta := index $tabmeta $key }}
                     <a
-                        href="/{{ $.RepoInfo.FullName }}{{ $value }}"
+                        href="/{{ $.RepoInfo.UrlBase }}{{ $value }}"
                         class="relative -mr-px group no-underline hover:no-underline"
                         hx-boost="true"
                     >
@@ -68,7 +68,7 @@
   <div class="flex items-center gap-2 flex-wrap text-lg">
     {{ template "user/fragments/picHandleLink" .RepoInfo.OwnerDid }}
     <span class="select-none">/</span>
-    <a href="/{{ .RepoInfo.FullName }}" class="font-bold">{{ .RepoInfo.Name }}</a>
+    <a href="/{{ .RepoInfo.UrlBase }}" class="font-bold">{{ .RepoInfo.Name }}</a>
   </div>
 {{ end }}
 
diff --git a/appview/pages/templates/repo/settings/fragments/sidebar.html b/appview/pages/templates/repo/settings/fragments/sidebar.html
index d22a1319..389de024 100644
--- a/appview/pages/templates/repo/settings/fragments/sidebar.html
+++ b/appview/pages/templates/repo/settings/fragments/sidebar.html
@@ -4,7 +4,7 @@
     {{ $activeTab := "bg-white dark:bg-gray-700 drop-shadow-sm" }}
     {{ $inactiveTab := "bg-gray-100 dark:bg-gray-800" }}
     {{ range const.RepoSettingsTabs }}
-    <a href="/{{ $.RepoInfo.FullName }}/settings?tab={{.Name}}" class="no-underline hover:no-underline hover:bg-gray-100/25 hover:dark:bg-gray-700/25">
+    <a href="/{{ $.RepoInfo.UrlBase }}/settings?tab={{.Name}}" class="no-underline hover:no-underline hover:bg-gray-100/25 hover:dark:bg-gray-700/25">
       <div class="flex gap-3 items-center p-2 {{ if eq .Name $active }} {{ $activeTab }} {{ else }} {{ $inactiveTab }} {{ end }}">
         {{ i .Icon "size-4" }}
         {{ .Name }}
diff --git a/appview/pulls/compose.go b/appview/pulls/compose.go
index 51fc61e9..78407fc6 100644
--- a/appview/pulls/compose.go
+++ b/appview/pulls/compose.go
@@ -183,7 +183,7 @@ func (s *Pulls) RefreshCompose(w http.ResponseWriter, r *http.Request) {
 }
 
 func composeCanonicalURL(params pages.RepoNewPullParams) string {
-	base := fmt.Sprintf("/%s/pulls/new", params.RepoInfo.FullName())
+	base := fmt.Sprintf("/%s/pulls/new", params.RepoInfo.UrlBase())
 	q := url.Values{}
 	if params.IsStacked {
 		q.Set("mode", "stack")
@@ -262,7 +262,7 @@ func (s *Pulls) composeParams(r *http.Request, repo *models.Repo) (pages.RepoNew
 
 	mergeCheck := s.composeMergeCheck(r.Context(), repo, targetBranch, comparison)
 
-	refreshUrl := fmt.Sprintf("/%s/pulls/new/refresh", repoInfo.FullName())
+	refreshUrl := fmt.Sprintf("/%s/pulls/new/refresh", repoInfo.UrlBase())
 	var diffOpts types.DiffOpts
 	if r.FormValue("diff") == "split" {
 		diffOpts.Split = true
diff --git a/appview/pulls/single.go b/appview/pulls/single.go
index b26fdad4..f9b6dfa0 100644
--- a/appview/pulls/single.go
+++ b/appview/pulls/single.go
@@ -8,6 +8,7 @@ import (
 
 	"tangled.org/core/api/tangled"
 	"tangled.org/core/appview/db"
+
 	"tangled.org/core/appview/models"
 	"tangled.org/core/appview/pages"
 	"tangled.org/core/appview/xrpcclient"
diff --git a/appview/reporesolver/resolver.go b/appview/reporesolver/resolver.go
index a728bf24..f23e2a73 100644
--- a/appview/reporesolver/resolver.go
+++ b/appview/reporesolver/resolver.go
@@ -151,6 +151,7 @@ func (rr *RepoResolver) GetRepoInfo(r *http.Request, user *oauth.MultiAccountUse
 		RepoDid:     repo.RepoDid,
 		Name:        repo.Name,
 		Rkey:        repo.Rkey,
+		ProjectMode: rr.config.Project.Enabled,
 		Description: repo.Description,
 		Website:     repo.Website,
 		Topics:      repo.Topics,