diff --git a/go.mod b/go.mod
index 6b259c729..70f002145 100644
--- a/go.mod
+++ b/go.mod
@@ -27,7 +27,7 @@ require (
 	codeberg.org/gruf/go-runners v1.6.3
 	codeberg.org/gruf/go-sched v1.2.4
 	codeberg.org/gruf/go-storage v0.2.0
-	codeberg.org/gruf/go-structr v0.9.6
+	codeberg.org/gruf/go-structr v0.9.7
 	codeberg.org/superseriousbusiness/activity v1.13.0-gts
 	codeberg.org/superseriousbusiness/exif-terminator v0.10.0
 	codeberg.org/superseriousbusiness/httpsig v1.3.0-SSB
diff --git a/go.sum b/go.sum
index 4516d14ef..972926331 100644
--- a/go.sum
+++ b/go.sum
@@ -38,8 +38,8 @@ codeberg.org/gruf/go-sched v1.2.4 h1:ddBB9o0D/2oU8NbQ0ldN5aWxogpXPRBATWi58+p++Hw
 codeberg.org/gruf/go-sched v1.2.4/go.mod h1:wad6l+OcYGWMA2TzNLMmLObsrbBDxdJfEy5WvTgBjNk=
 codeberg.org/gruf/go-storage v0.2.0 h1:mKj3Lx6AavEkuXXtxqPhdq+akW9YwrnP16yQBF7K5ZI=
 codeberg.org/gruf/go-storage v0.2.0/go.mod h1:o3GzMDE5QNUaRnm/daUzFqvuAaC4utlgXDXYO79sWKU=
-codeberg.org/gruf/go-structr v0.9.6 h1:FSbJ1A0ubTQB82rC0K4o6qyiqrDGH1t9ivttm8Zy64o=
-codeberg.org/gruf/go-structr v0.9.6/go.mod h1:9k5hYztZ4PsBS+m1v5hUTeFiVUBTLF5VA7d9cd1OEMs=
+codeberg.org/gruf/go-structr v0.9.7 h1:yQeIxTjYb6reNdgESk915twyjolydYBqat/mlZrP7bg=
+codeberg.org/gruf/go-structr v0.9.7/go.mod h1:9k5hYztZ4PsBS+m1v5hUTeFiVUBTLF5VA7d9cd1OEMs=
 codeberg.org/superseriousbusiness/activity v1.13.0-gts h1:4WZLc/SNt+Vt5x2UjL2n6V5dHlIL9ECudUPx8Ld5rxw=
 codeberg.org/superseriousbusiness/activity v1.13.0-gts/go.mod h1:enxU1Lva4OcK6b/NBXscoHSEgEMsKJvdHrQFifQxp4o=
 codeberg.org/superseriousbusiness/exif-terminator v0.10.0 h1:FiLX/AK07tzceS36I+kOP2aEH+aytjPSIlFoYePMEyg=
diff --git a/vendor/codeberg.org/gruf/go-structr/index.go b/vendor/codeberg.org/gruf/go-structr/index.go
index 23d3ffaee..acb58f7a8 100644
--- a/vendor/codeberg.org/gruf/go-structr/index.go
+++ b/vendor/codeberg.org/gruf/go-structr/index.go
@@ -1,6 +1,7 @@
 package structr
 
 import (
+	"fmt"
 	"os"
 	"reflect"
 	"strings"
@@ -222,10 +223,10 @@ func (i *Index) get(key string, hook func(*indexed_item)) {
 func (i *Index) key(buf *byteutil.Buffer, parts []unsafe.Pointer) string {
 	buf.B = buf.B[:0]
 	if len(parts) != len(i.fields) {
-		panicf("incorrect number key parts: want=%d received=%d",
+		panic(fmt.Sprintf("incorrect number key parts: want=%d received=%d",
 			len(i.fields),
 			len(parts),
-		)
+		))
 	}
 	if !allow_zero(i.flags) {
 		for x, field := range i.fields {
diff --git a/vendor/codeberg.org/gruf/go-structr/runtime.go b/vendor/codeberg.org/gruf/go-structr/runtime.go
index b75dfeba0..1d379b70d 100644
--- a/vendor/codeberg.org/gruf/go-structr/runtime.go
+++ b/vendor/codeberg.org/gruf/go-structr/runtime.go
@@ -70,7 +70,7 @@ func find_field(t reflect.Type, names []string) (sfield struct_field) {
 			name := names[0]
 			names = names[1:]
 			if !is_exported(name) {
-				panicf("field is not exported: %s", name)
+				panic(fmt.Sprintf("field is not exported: %s", name))
 			}
 			return name
 		}
@@ -94,7 +94,7 @@ func find_field(t reflect.Type, names []string) (sfield struct_field) {
 
 		// Check for valid struct type.
 		if t.Kind() != reflect.Struct {
-			panicf("field %s is not struct (or ptr-to): %s", t, name)
+			panic(fmt.Sprintf("field %s is not struct (or ptr-to): %s", t, name))
 		}
 
 		var ok bool
@@ -102,7 +102,7 @@ func find_field(t reflect.Type, names []string) (sfield struct_field) {
 		// Look for next field by name.
 		field, ok = t.FieldByName(name)
 		if !ok {
-			panicf("unknown field: %s", name)
+			panic(fmt.Sprintf("unknown field: %s", name))
 		}
 
 		// Set next offset value.
@@ -258,11 +258,6 @@ func eface_data(a any) unsafe.Pointer {
 	return (*eface)(unsafe.Pointer(&a)).data
 }
 
-// panicf provides a panic with string formatting.
-func panicf(format string, args ...any) {
-	panic(fmt.Sprintf(format, args...))
-}
-
 // assert can be called to indicated a block
 // of code should not be able to be reached,
 // it returns a BUG report with callsite.
diff --git a/vendor/codeberg.org/gruf/go-structr/timeline.go b/vendor/codeberg.org/gruf/go-structr/timeline.go
index 0eb1e3aa5..0014e69ee 100644
--- a/vendor/codeberg.org/gruf/go-structr/timeline.go
+++ b/vendor/codeberg.org/gruf/go-structr/timeline.go
@@ -190,7 +190,8 @@ func (t *Timeline[T, PK]) Select(min, max *PK, length *int, dir Direction) (valu
 
 // Insert will insert the given values into the timeline,
 // calling any set invalidate hook on each inserted value.
-func (t *Timeline[T, PK]) Insert(values ...T) {
+// Returns current list length after performing inserts.
+func (t *Timeline[T, PK]) Insert(values ...T) int {
 
 	// Acquire lock.
 	t.mutex.Lock()
@@ -269,6 +270,10 @@ func (t *Timeline[T, PK]) Insert(values ...T) {
 	// Get func ptrs.
 	invalid := t.invalid
 
+	// Get length AFTER
+	// insert to return.
+	len := t.list.len
+
 	// Done with lock.
 	t.mutex.Unlock()
 
@@ -279,6 +284,8 @@ func (t *Timeline[T, PK]) Insert(values ...T) {
 			invalid(value)
 		}
 	}
+
+	return len
 }
 
 // Invalidate invalidates all entries stored in index under given keys.
@@ -336,8 +343,8 @@ func (t *Timeline[T, PK]) Invalidate(index *Index, keys ...Key) {
 //
 // Please note that the entire Timeline{} will be locked for the duration of the range
 // operation, i.e. from the beginning of the first yield call until the end of the last.
-func (t *Timeline[T, PK]) Range(dir Direction) func(yield func(T) bool) {
-	return func(yield func(T) bool) {
+func (t *Timeline[T, PK]) Range(dir Direction) func(yield func(index int, value T) bool) {
+	return func(yield func(int, T) bool) {
 		if t.copy == nil {
 			panic("not initialized")
 		} else if yield == nil {
@@ -348,7 +355,9 @@ func (t *Timeline[T, PK]) Range(dir Direction) func(yield func(T) bool) {
 		t.mutex.Lock()
 		defer t.mutex.Unlock()
 
+		var i int
 		switch dir {
+
 		case Asc:
 			// Iterate through linked list from bottom (i.e. tail).
 			for prev := t.list.tail; prev != nil; prev = prev.prev {
@@ -360,9 +369,12 @@ func (t *Timeline[T, PK]) Range(dir Direction) func(yield func(T) bool) {
 				value := t.copy(item.data.(T))
 
 				// Pass to given function.
-				if !yield(value) {
+				if !yield(i, value) {
 					break
 				}
+
+				// Iter
+				i++
 			}
 
 		case Desc:
@@ -376,9 +388,12 @@ func (t *Timeline[T, PK]) Range(dir Direction) func(yield func(T) bool) {
 				value := t.copy(item.data.(T))
 
 				// Pass to given function.
-				if !yield(value) {
+				if !yield(i, value) {
 					break
 				}
+
+				// Iter
+				i++
 			}
 		}
 	}
@@ -390,8 +405,8 @@ func (t *Timeline[T, PK]) Range(dir Direction) func(yield func(T) bool) {
 //
 // Please note that the entire Timeline{} will be locked for the duration of the range
 // operation, i.e. from the beginning of the first yield call until the end of the last.
-func (t *Timeline[T, PK]) RangeUnsafe(dir Direction) func(yield func(T) bool) {
-	return func(yield func(T) bool) {
+func (t *Timeline[T, PK]) RangeUnsafe(dir Direction) func(yield func(index int, value T) bool) {
+	return func(yield func(int, T) bool) {
 		if t.copy == nil {
 			panic("not initialized")
 		} else if yield == nil {
@@ -402,7 +417,9 @@ func (t *Timeline[T, PK]) RangeUnsafe(dir Direction) func(yield func(T) bool) {
 		t.mutex.Lock()
 		defer t.mutex.Unlock()
 
+		var i int
 		switch dir {
+
 		case Asc:
 			// Iterate through linked list from bottom (i.e. tail).
 			for prev := t.list.tail; prev != nil; prev = prev.prev {
@@ -411,9 +428,12 @@ func (t *Timeline[T, PK]) RangeUnsafe(dir Direction) func(yield func(T) bool) {
 				item := (*timeline_item)(prev.data)
 
 				// Pass to given function.
-				if !yield(item.data.(T)) {
+				if !yield(i, item.data.(T)) {
 					break
 				}
+
+				// Iter
+				i++
 			}
 
 		case Desc:
@@ -424,9 +444,12 @@ func (t *Timeline[T, PK]) RangeUnsafe(dir Direction) func(yield func(T) bool) {
 				item := (*timeline_item)(next.data)
 
 				// Pass to given function.
-				if !yield(item.data.(T)) {
+				if !yield(i, item.data.(T)) {
 					break
 				}
+
+				// Iter
+				i++
 			}
 		}
 	}
@@ -1033,6 +1056,9 @@ indexing:
 		// checking for collisions.
 		if !idx.add(key, i_item) {
 
+			// This key already appears
+			// in this unique index. So
+			// drop new timeline item.
 			t.delete(t_item)
 			free_buffer(buf)
 			return last
diff --git a/vendor/modules.txt b/vendor/modules.txt
index b39054eb5..8e6f9d09b 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -63,7 +63,7 @@ codeberg.org/gruf/go-storage/disk
 codeberg.org/gruf/go-storage/internal
 codeberg.org/gruf/go-storage/memory
 codeberg.org/gruf/go-storage/s3
-# codeberg.org/gruf/go-structr v0.9.6
+# codeberg.org/gruf/go-structr v0.9.7
 ## explicit; go 1.22
 codeberg.org/gruf/go-structr
 # codeberg.org/superseriousbusiness/activity v1.13.0-gts