diff --git a/src/internal/kopia/backup_bases.go b/src/internal/kopia/backup_bases.go
index e96024692..c523ed92d 100644
--- a/src/internal/kopia/backup_bases.go
+++ b/src/internal/kopia/backup_bases.go
@@ -8,6 +8,7 @@ import (
 	"golang.org/x/exp/slices"
 
 	"github.com/alcionai/corso/src/internal/version"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/identity"
 	"github.com/alcionai/corso/src/pkg/logger"
 )
@@ -17,17 +18,17 @@ var _ backup.BackupBases = &backupBases{}
 type backupBases struct {
 	// backups and mergeBases should be modified together as they relate similar
 	// data.
-	backups       []BackupEntry
-	mergeBases    []ManifestEntry
-	assistBackups []BackupEntry
-	assistBases   []ManifestEntry
+	backups       []backup.BackupEntry
+	mergeBases    []backup.ManifestEntry
+	assistBackups []backup.BackupEntry
+	assistBases   []backup.ManifestEntry
 
 	// disableAssistBases denote whether any assist bases should be returned to
 	// kopia during snapshot operation.
 	disableAssistBases bool
 }
 
-func (bb *backupBases) SnapshotAssistBases() []ManifestEntry {
+func (bb *backupBases) SnapshotAssistBases() []backup.ManifestEntry {
 	if bb.disableAssistBases {
 		return nil
 	}
@@ -39,14 +40,14 @@ func (bb *backupBases) SnapshotAssistBases() []ManifestEntry {
 
 func (bb *backupBases) ConvertToAssistBase(manifestID manifest.ID) {
 	var (
-		snapshotMan ManifestEntry
-		base        BackupEntry
+		snapshotMan backup.ManifestEntry
+		base        backup.BackupEntry
 		snapFound   bool
 	)
 
 	idx := slices.IndexFunc(
 		bb.mergeBases,
-		func(man ManifestEntry) bool {
+		func(man backup.ManifestEntry) bool {
 			return man.ID == manifestID
 		})
 	if idx >= 0 {
@@ -57,7 +58,7 @@ func (bb *backupBases) ConvertToAssistBase(manifestID manifest.ID) {
 
 	idx = slices.IndexFunc(
 		bb.backups,
-		func(bup BackupEntry) bool {
+		func(bup backup.BackupEntry) bool {
 			return bup.SnapshotID == string(manifestID)
 		})
 	if idx >= 0 {
@@ -72,11 +73,11 @@ func (bb *backupBases) ConvertToAssistBase(manifestID manifest.ID) {
 	}
 }
 
-func (bb backupBases) Backups() []BackupEntry {
+func (bb backupBases) Backups() []backup.BackupEntry {
 	return slices.Clone(bb.backups)
 }
 
-func (bb backupBases) UniqueAssistBackups() []BackupEntry {
+func (bb backupBases) UniqueAssistBackups() []backup.BackupEntry {
 	if bb.disableAssistBases {
 		return nil
 	}
@@ -100,7 +101,7 @@ func (bb *backupBases) MinBackupVersion() int {
 	return min
 }
 
-func (bb backupBases) MergeBases() []ManifestEntry {
+func (bb backupBases) MergeBases() []backup.ManifestEntry {
 	return slices.Clone(bb.mergeBases)
 }
 
@@ -117,7 +118,7 @@ func (bb *backupBases) DisableMergeBases() {
 	bb.backups = nil
 }
 
-func (bb backupBases) UniqueAssistBases() []ManifestEntry {
+func (bb backupBases) UniqueAssistBases() []backup.ManifestEntry {
 	if bb.disableAssistBases {
 		return nil
 	}
@@ -152,9 +153,9 @@ func (bb *backupBases) DisableAssistBases() {
 //     MergeBase in the other BackupBases.
 func (bb *backupBases) MergeBackupBases(
 	ctx context.Context,
-	other BackupBases,
+	other backup.BackupBases,
 	reasonToKey func(reason identity.Reasoner) string,
-) BackupBases {
+) backup.BackupBases {
 	if other == nil || (len(other.MergeBases()) == 0 && len(other.UniqueAssistBases()) == 0) {
 		return bb
 	}
@@ -183,7 +184,7 @@ func (bb *backupBases) MergeBackupBases(
 		}
 	}
 
-	var toAdd []ManifestEntry
+	var toAdd []backup.ManifestEntry
 
 	// Calculate the set of mergeBases to pull from other into this one.
 	for _, m := range other.MergeBases() {
@@ -244,10 +245,10 @@ func (bb *backupBases) MergeBackupBases(
 
 func findNonUniqueManifests(
 	ctx context.Context,
-	manifests []ManifestEntry,
+	manifests []backup.ManifestEntry,
 ) map[manifest.ID]struct{} {
 	// ReasonKey -> manifests with that reason.
-	reasons := map[string][]ManifestEntry{}
+	reasons := map[string][]backup.ManifestEntry{}
 	toDrop := map[manifest.ID]struct{}{}
 
 	for _, man := range manifests {
@@ -300,17 +301,20 @@ func findNonUniqueManifests(
 	return toDrop
 }
 
-func getBackupByID(backups []BackupEntry, bID string) (BackupEntry, bool) {
+func getBackupByID(
+	backups []backup.BackupEntry,
+	bID string,
+) (backup.BackupEntry, bool) {
 	if len(bID) == 0 {
-		return BackupEntry{}, false
+		return backup.BackupEntry{}, false
 	}
 
-	idx := slices.IndexFunc(backups, func(b BackupEntry) bool {
+	idx := slices.IndexFunc(backups, func(b backup.BackupEntry) bool {
 		return string(b.ID) == bID
 	})
 
 	if idx < 0 || idx >= len(backups) {
-		return BackupEntry{}, false
+		return backup.BackupEntry{}, false
 	}
 
 	return backups[idx], true
@@ -333,10 +337,10 @@ func (bb *backupBases) fixupAndVerify(ctx context.Context) {
 	toDrop := findNonUniqueManifests(ctx, bb.mergeBases)
 
 	var (
-		backupsToKeep       []BackupEntry
-		assistBackupsToKeep []BackupEntry
-		mergeToKeep         []ManifestEntry
-		assistToKeep        []ManifestEntry
+		backupsToKeep       []backup.BackupEntry
+		assistBackupsToKeep []backup.BackupEntry
+		mergeToKeep         []backup.ManifestEntry
+		assistToKeep        []backup.ManifestEntry
 	)
 
 	for _, man := range bb.mergeBases {
diff --git a/src/internal/kopia/backup_bases_test.go b/src/internal/kopia/backup_bases_test.go
index 3ff1488e5..6752ea8ae 100644
--- a/src/internal/kopia/backup_bases_test.go
+++ b/src/internal/kopia/backup_bases_test.go
@@ -18,10 +18,15 @@ import (
 	"github.com/alcionai/corso/src/pkg/path"
 )
 
-func makeManifest(id, incmpl, bID string, reasons ...identity.Reasoner) ManifestEntry {
-	bIDKey, _ := makeTagKV(TagBackupID)
+func makeManifest(
+	id,
+	incmpl,
+	bID string,
+	reasons ...identity.Reasoner,
+) backup.ManifestEntry {
+	bIDKey, _ := backup.MakeTagKV(TagBackupID)
 
-	return ManifestEntry{
+	return backup.ManifestEntry{
 		Manifest: &snapshot.Manifest{
 			ID:               manifest.ID(id),
 			IncompleteReason: incmpl,
@@ -57,7 +62,7 @@ func (suite *BackupBasesUnitSuite) TestMinBackupVersion() {
 		{
 			name: "Unsorted Backups",
 			bb: &backupBases{
-				backups: []BackupEntry{
+				backups: []backup.BackupEntry{
 					{
 						Backup: &backup.Backup{
 							Version: 4,
@@ -86,13 +91,13 @@ func (suite *BackupBasesUnitSuite) TestMinBackupVersion() {
 }
 
 func (suite *BackupBasesUnitSuite) TestConvertToAssistBase() {
-	backups := []BackupEntry{
+	backups := []backup.BackupEntry{
 		{Backup: &backup.Backup{SnapshotID: "1"}},
 		{Backup: &backup.Backup{SnapshotID: "2"}},
 		{Backup: &backup.Backup{SnapshotID: "3"}},
 	}
 
-	merges := []ManifestEntry{
+	merges := []backup.ManifestEntry{
 		makeManifest("1", "", ""),
 		makeManifest("2", "", ""),
 		makeManifest("3", "", ""),
@@ -185,8 +190,8 @@ func (suite *BackupBasesUnitSuite) TestConvertToAssistBase() {
 			}
 
 			expected := &backupBases{
-				backups:    []BackupEntry{backups[0], backups[1]},
-				mergeBases: []ManifestEntry{merges[0], merges[1]},
+				backups:    []backup.BackupEntry{backups[0], backups[1]},
+				mergeBases: []backup.ManifestEntry{merges[0], merges[1]},
 			}
 
 			for _, i := range test.expectAssist {
@@ -203,20 +208,20 @@ func (suite *BackupBasesUnitSuite) TestConvertToAssistBase() {
 func (suite *BackupBasesUnitSuite) TestDisableMergeBases() {
 	t := suite.T()
 
-	merge := []BackupEntry{
+	merge := []backup.BackupEntry{
 		{Backup: &backup.Backup{BaseModel: model.BaseModel{ID: "m1"}}},
 		{Backup: &backup.Backup{BaseModel: model.BaseModel{ID: "m2"}}},
 	}
-	assist := []BackupEntry{
+	assist := []backup.BackupEntry{
 		{Backup: &backup.Backup{BaseModel: model.BaseModel{ID: "a1"}}},
 		{Backup: &backup.Backup{BaseModel: model.BaseModel{ID: "a2"}}},
 	}
 
 	bb := &backupBases{
 		backups:       slices.Clone(merge),
-		mergeBases:    make([]ManifestEntry, 2),
+		mergeBases:    make([]backup.ManifestEntry, 2),
 		assistBackups: slices.Clone(assist),
-		assistBases:   make([]ManifestEntry, 2),
+		assistBases:   make([]backup.ManifestEntry, 2),
 	}
 
 	bb.DisableMergeBases()
@@ -237,10 +242,10 @@ func (suite *BackupBasesUnitSuite) TestDisableMergeBases() {
 func (suite *BackupBasesUnitSuite) TestDisableAssistBases() {
 	t := suite.T()
 	bb := &backupBases{
-		backups:       make([]BackupEntry, 2),
-		mergeBases:    make([]ManifestEntry, 2),
-		assistBases:   make([]ManifestEntry, 2),
-		assistBackups: make([]BackupEntry, 2),
+		backups:       make([]backup.BackupEntry, 2),
+		mergeBases:    make([]backup.ManifestEntry, 2),
+		assistBases:   make([]backup.ManifestEntry, 2),
+		assistBackups: make([]backup.BackupEntry, 2),
 	}
 
 	bb.DisableAssistBases()
@@ -275,7 +280,7 @@ func (suite *BackupBasesUnitSuite) TestMergeBackupBases() {
 
 			m := makeManifest(baseID, "", "b"+baseID, reasons...)
 
-			b := BackupEntry{
+			b := backup.BackupEntry{
 				Backup: &backup.Backup{
 					BaseModel:     model.BaseModel{ID: model.StableID("b" + baseID)},
 					SnapshotID:    baseID,
@@ -299,7 +304,7 @@ func (suite *BackupBasesUnitSuite) TestMergeBackupBases() {
 
 			m := makeManifest(baseID, "", "a"+baseID, reasons...)
 
-			b := BackupEntry{
+			b := backup.BackupEntry{
 				Backup: &backup.Backup{
 					BaseModel: model.BaseModel{
 						ID:   model.StableID("a" + baseID),
@@ -528,7 +533,11 @@ func (suite *BackupBasesUnitSuite) TestMergeBackupBases() {
 func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 	ro := "resource_owner"
 
-	makeMan := func(pct path.CategoryType, id, incmpl, bID string) ManifestEntry {
+	makeMan := func(
+		pct path.CategoryType,
+		id, incmpl,
+		bID string,
+	) backup.ManifestEntry {
 		r := NewReason("", ro, path.ExchangeService, pct)
 		return makeManifest(id, incmpl, bID, r)
 	}
@@ -536,7 +545,7 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 	// Make a function so tests can modify things without messing with each other.
 	validMail1 := func() *backupBases {
 		return &backupBases{
-			backups: []BackupEntry{
+			backups: []backup.BackupEntry{
 				{
 					Backup: &backup.Backup{
 						BaseModel: model.BaseModel{
@@ -547,10 +556,10 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 					},
 				},
 			},
-			mergeBases: []ManifestEntry{
+			mergeBases: []backup.ManifestEntry{
 				makeMan(path.EmailCategory, "id1", "", "bid1"),
 			},
-			assistBackups: []BackupEntry{
+			assistBackups: []backup.BackupEntry{
 				{
 					Backup: &backup.Backup{
 						BaseModel: model.BaseModel{
@@ -562,7 +571,7 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 					},
 				},
 			},
-			assistBases: []ManifestEntry{
+			assistBases: []backup.ManifestEntry{
 				makeMan(path.EmailCategory, "id2", "", "bid2"),
 			},
 		}
@@ -571,7 +580,7 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 	table := []struct {
 		name   string
 		bb     *backupBases
-		expect BackupBases
+		expect backup.BackupBases
 	}{
 		{
 			name: "empty BaseBackups",
@@ -769,14 +778,14 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 				res := validMail1()
 				res.backups = append(
 					res.backups,
-					BackupEntry{
+					backup.BackupEntry{
 						Backup: &backup.Backup{
 							BaseModel: model.BaseModel{
 								ID: "bid3",
 							},
 						},
 					},
-					BackupEntry{
+					backup.BackupEntry{
 						Backup: &backup.Backup{
 							BaseModel: model.BaseModel{
 								ID: "bid4",
@@ -796,7 +805,7 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 				res := validMail1()
 				res.backups = append(
 					res.backups,
-					BackupEntry{
+					backup.BackupEntry{
 						Backup: &backup.Backup{
 							BaseModel: model.BaseModel{
 								ID: "bid4",
@@ -818,7 +827,7 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 				res := validMail1()
 				res.assistBackups = append(
 					res.assistBackups,
-					BackupEntry{
+					backup.BackupEntry{
 						Backup: &backup.Backup{
 							BaseModel: model.BaseModel{
 								ID:   "bid3",
@@ -826,7 +835,7 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 							},
 						},
 					},
-					BackupEntry{
+					backup.BackupEntry{
 						Backup: &backup.Backup{
 							BaseModel: model.BaseModel{
 								ID:   "bid4",
@@ -847,7 +856,7 @@ func (suite *BackupBasesUnitSuite) TestFixupAndVerify() {
 				res := validMail1()
 				res.assistBackups = append(
 					res.assistBackups,
-					BackupEntry{
+					backup.BackupEntry{
 						Backup: &backup.Backup{
 							BaseModel: model.BaseModel{
 								ID:   "bid4",
diff --git a/src/internal/kopia/base_finder.go b/src/internal/kopia/base_finder.go
index a77a350ed..07b65707e 100644
--- a/src/internal/kopia/base_finder.go
+++ b/src/internal/kopia/base_finder.go
@@ -86,7 +86,7 @@ func normalizeTagKVs(tags map[string]string) map[string]string {
 	t2 := make(map[string]string, len(tags))
 
 	for k, v := range tags {
-		mk, mv := makeTagKV(k)
+		mk, mv := backup.MakeTagKV(k)
 
 		if len(v) == 0 {
 			v = mv
@@ -125,7 +125,7 @@ func (b *baseFinder) getBackupModel(
 	ctx context.Context,
 	man *snapshot.Manifest,
 ) (*backup.Backup, error) {
-	k, _ := makeTagKV(TagBackupID)
+	k, _ := backup.MakeTagKV(TagBackupID)
 	bID := man.Tags[k]
 
 	ctx = clues.Add(ctx, "search_backup_id", bID)
@@ -333,7 +333,7 @@ func (b *baseFinder) FindBases(
 	ctx context.Context,
 	reasons []identity.Reasoner,
 	tags map[string]string,
-) BackupBases {
+) backup.BackupBases {
 	var (
 		// Backup models and item data snapshot manifests are 1:1 for bases so just
 		// track things by the backup ID. We need to track by ID so we can coalesce
@@ -384,16 +384,16 @@ func (b *baseFinder) FindBases(
 	// Convert what we got to the format that backupBases takes right now.
 	// TODO(ashmrtn): Remove when backupBases has consolidated fields.
 	res := &backupBases{}
-	bups := make([]BackupEntry, 0, len(mergeBases))
-	snaps := make([]ManifestEntry, 0, len(mergeBases))
+	bups := make([]backup.BackupEntry, 0, len(mergeBases))
+	snaps := make([]backup.ManifestEntry, 0, len(mergeBases))
 
 	for _, base := range mergeBases {
-		bups = append(bups, BackupEntry{
+		bups = append(bups, backup.BackupEntry{
 			Backup:  base.Backup,
 			Reasons: base.Reasons,
 		})
 
-		snaps = append(snaps, ManifestEntry{
+		snaps = append(snaps, backup.ManifestEntry{
 			Manifest: base.ItemDataSnapshot,
 			Reasons:  base.Reasons,
 		})
@@ -402,16 +402,16 @@ func (b *baseFinder) FindBases(
 	res.backups = bups
 	res.mergeBases = snaps
 
-	bups = make([]BackupEntry, 0, len(assistBases))
-	snaps = make([]ManifestEntry, 0, len(assistBases))
+	bups = make([]backup.BackupEntry, 0, len(assistBases))
+	snaps = make([]backup.ManifestEntry, 0, len(assistBases))
 
 	for _, base := range assistBases {
-		bups = append(bups, BackupEntry{
+		bups = append(bups, backup.BackupEntry{
 			Backup:  base.Backup,
 			Reasons: base.Reasons,
 		})
 
-		snaps = append(snaps, ManifestEntry{
+		snaps = append(snaps, backup.ManifestEntry{
 			Manifest: base.ItemDataSnapshot,
 			Reasons:  base.Reasons,
 		})
diff --git a/src/internal/kopia/base_finder_test.go b/src/internal/kopia/base_finder_test.go
index 2c65890a1..aa4686290 100644
--- a/src/internal/kopia/base_finder_test.go
+++ b/src/internal/kopia/base_finder_test.go
@@ -121,7 +121,7 @@ func newManifestInfo(
 	structTags := make(map[string]string, len(tags))
 
 	for _, t := range tags {
-		tk, _ := makeTagKV(t)
+		tk, _ := backup.MakeTagKV(t)
 		structTags[tk] = ""
 	}
 
@@ -141,7 +141,7 @@ func newManifestInfo(
 	}
 
 	if len(backupID) > 0 {
-		k, _ := makeTagKV(TagBackupID)
+		k, _ := backup.MakeTagKV(TagBackupID)
 		res.metadata.Labels[k] = backupID
 		res.man.Tags[k] = backupID
 	}
@@ -1078,7 +1078,7 @@ func (suite *BaseFinderUnitSuite) TestFindBases_CustomTags() {
 
 func checkManifestEntriesMatch(
 	t *testing.T,
-	retSnaps []ManifestEntry,
+	retSnaps []backup.ManifestEntry,
 	allExpected []manifestInfo,
 	expectedIdxsAndReasons map[int][]identity.Reasoner,
 ) {
@@ -1119,7 +1119,7 @@ func checkManifestEntriesMatch(
 
 func checkBackupEntriesMatch(
 	t *testing.T,
-	retBups []BackupEntry,
+	retBups []backup.BackupEntry,
 	allExpected []backupInfo,
 	expectedIdxsAndReasons map[int][]identity.Reasoner,
 ) {
diff --git a/src/internal/kopia/cleanup_backups.go b/src/internal/kopia/cleanup_backups.go
index af3be7d2f..f46f4c453 100644
--- a/src/internal/kopia/cleanup_backups.go
+++ b/src/internal/kopia/cleanup_backups.go
@@ -99,7 +99,7 @@ func cleanupOrphanedData(
 
 		toDelete[snap.ID] = struct{}{}
 
-		k, _ := makeTagKV(TagBackupCategory)
+		k, _ := backup.MakeTagKV(TagBackupCategory)
 		if _, ok := snap.Labels[k]; ok {
 			dataSnaps[snap.ID] = snap
 			continue
@@ -315,7 +315,7 @@ func transferTags(snap *manifest.EntryMetadata, bup *backup.Backup) error {
 	skipTags := map[string]struct{}{}
 
 	for _, k := range skipKeys {
-		key, _ := makeTagKV(k)
+		key, _ := backup.MakeTagKV(k)
 		skipTags[key] = struct{}{}
 	}
 
@@ -324,7 +324,7 @@ func transferTags(snap *manifest.EntryMetadata, bup *backup.Backup) error {
 	// backups.
 	roid := bup.ProtectedResourceID
 
-	roidK, _ := makeTagKV(roid)
+	roidK, _ := backup.MakeTagKV(roid)
 	skipTags[roidK] = struct{}{}
 
 	// This is hacky, but right now we don't have a good way to get only the
@@ -336,11 +336,11 @@ func transferTags(snap *manifest.EntryMetadata, bup *backup.Backup) error {
 	// Convert them to the newer format that we'd like to have where the
 	// service/category tags have the form "sc-<service><category>".
 	for tag := range snap.Labels {
-		if _, ok := skipTags[tag]; ok || !strings.HasPrefix(tag, userTagPrefix) {
+		if _, ok := skipTags[tag]; ok || !strings.HasPrefix(tag, backup.LegacyUserTagPrefix) {
 			continue
 		}
 
-		bup.Tags[strings.Replace(tag, userTagPrefix, serviceCatTagPrefix, 1)] = "0"
+		bup.Tags[strings.Replace(tag, backup.LegacyUserTagPrefix, serviceCatTagPrefix, 1)] = "0"
 	}
 
 	return nil
diff --git a/src/internal/kopia/cleanup_backups_test.go b/src/internal/kopia/cleanup_backups_test.go
index 6407485a5..70a78b24a 100644
--- a/src/internal/kopia/cleanup_backups_test.go
+++ b/src/internal/kopia/cleanup_backups_test.go
@@ -136,7 +136,7 @@ type backupRes struct {
 }
 
 func (suite *BackupCleanupUnitSuite) TestCleanupOrphanedData() {
-	backupTag, _ := makeTagKV(TagBackupCategory)
+	backupTag, _ := backup.MakeTagKV(TagBackupCategory)
 
 	// Current backup and snapshots.
 	bupCurrent := func() *backup.Backup {
@@ -331,13 +331,13 @@ func (suite *BackupCleanupUnitSuite) TestCleanupOrphanedData() {
 		// Add the given reasons.
 		for _, r := range reasons {
 			for _, k := range tagKeys(r) {
-				key, _ := makeTagKV(k)
+				key, _ := backup.MakeTagKV(k)
 				res.Labels[key] = "0"
 			}
 		}
 
 		// Also add other common reasons on item data snapshots.
-		k, _ := makeTagKV(TagBackupCategory)
+		k, _ := backup.MakeTagKV(TagBackupCategory)
 		res.Labels[k] = "0"
 
 		return &res
diff --git a/src/internal/kopia/inject/inject.go b/src/internal/kopia/inject/inject.go
index 3011a79e7..c5e2fee99 100644
--- a/src/internal/kopia/inject/inject.go
+++ b/src/internal/kopia/inject/inject.go
@@ -6,6 +6,7 @@ import (
 	"github.com/alcionai/corso/src/internal/common/prefixmatcher"
 	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/kopia"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/backup/identity"
 	"github.com/alcionai/corso/src/pkg/fault"
@@ -17,7 +18,7 @@ type (
 		ConsumeBackupCollections(
 			ctx context.Context,
 			backupReasons []identity.Reasoner,
-			bases kopia.BackupBases,
+			bases backup.BackupBases,
 			cs []data.BackupCollection,
 			pmr prefixmatcher.StringSetReader,
 			tags map[string]string,
@@ -41,6 +42,6 @@ type (
 			ctx context.Context,
 			reasons []identity.Reasoner,
 			tags map[string]string,
-		) kopia.BackupBases
+		) backup.BackupBases
 	}
 )
diff --git a/src/internal/kopia/mock_backup_base.go b/src/internal/kopia/mock_backup_base.go
index cca5580a0..1306a1865 100644
--- a/src/internal/kopia/mock_backup_base.go
+++ b/src/internal/kopia/mock_backup_base.go
@@ -4,9 +4,13 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+
+	"github.com/alcionai/corso/src/pkg/backup"
 )
 
-func AssertBackupBasesEqual(t *testing.T, expect, got BackupBases) {
+var _ backup.BackupBases = &MockBackupBases{}
+
+func AssertBackupBasesEqual(t *testing.T, expect, got backup.BackupBases) {
 	if expect == nil && got == nil {
 		return
 	}
@@ -48,22 +52,22 @@ type MockBackupBases struct {
 	*backupBases
 }
 
-func (bb *MockBackupBases) WithBackups(b ...BackupEntry) *MockBackupBases {
+func (bb *MockBackupBases) WithBackups(b ...backup.BackupEntry) *MockBackupBases {
 	bb.backupBases.backups = append(bb.Backups(), b...)
 	return bb
 }
 
-func (bb *MockBackupBases) WithMergeBases(m ...ManifestEntry) *MockBackupBases {
+func (bb *MockBackupBases) WithMergeBases(m ...backup.ManifestEntry) *MockBackupBases {
 	bb.backupBases.mergeBases = append(bb.MergeBases(), m...)
 	return bb
 }
 
-func (bb *MockBackupBases) WithAssistBackups(b ...BackupEntry) *MockBackupBases {
+func (bb *MockBackupBases) WithAssistBackups(b ...backup.BackupEntry) *MockBackupBases {
 	bb.backupBases.assistBackups = append(bb.UniqueAssistBackups(), b...)
 	return bb
 }
 
-func (bb *MockBackupBases) WithAssistBases(m ...ManifestEntry) *MockBackupBases {
+func (bb *MockBackupBases) WithAssistBases(m ...backup.ManifestEntry) *MockBackupBases {
 	bb.backupBases.assistBases = append(bb.UniqueAssistBases(), m...)
 	return bb
 }
diff --git a/src/internal/kopia/upload.go b/src/internal/kopia/upload.go
index 6030ec838..e76dffd60 100644
--- a/src/internal/kopia/upload.go
+++ b/src/internal/kopia/upload.go
@@ -23,6 +23,7 @@ import (
 	"github.com/alcionai/corso/src/internal/diagnostics"
 	"github.com/alcionai/corso/src/internal/m365/graph"
 	"github.com/alcionai/corso/src/internal/m365/graph/metadata"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/count"
 	"github.com/alcionai/corso/src/pkg/fault"
@@ -1039,7 +1040,7 @@ func traverseBaseDir(
 	return nil
 }
 
-func logBaseInfo(ctx context.Context, m ManifestEntry) {
+func logBaseInfo(ctx context.Context, m backup.ManifestEntry) {
 	svcs := map[string]struct{}{}
 	cats := map[string]struct{}{}
 
@@ -1085,7 +1086,7 @@ const (
 func inflateBaseTree(
 	ctx context.Context,
 	loader snapshotLoader,
-	snap ManifestEntry,
+	snap backup.ManifestEntry,
 	updatedPaths map[string]path.Path,
 	roots map[string]*treeMap,
 ) error {
@@ -1196,7 +1197,7 @@ func inflateBaseTree(
 func inflateDirTree(
 	ctx context.Context,
 	loader snapshotLoader,
-	baseSnaps []ManifestEntry,
+	baseSnaps []backup.ManifestEntry,
 	collections []data.BackupCollection,
 	globalExcludeSet prefixmatcher.StringSetReader,
 	progress *corsoProgress,
diff --git a/src/internal/kopia/upload_test.go b/src/internal/kopia/upload_test.go
index 168d32617..e2de6a481 100644
--- a/src/internal/kopia/upload_test.go
+++ b/src/internal/kopia/upload_test.go
@@ -22,6 +22,7 @@ import (
 	"github.com/alcionai/corso/src/internal/data"
 	exchMock "github.com/alcionai/corso/src/internal/m365/service/exchange/mock"
 	"github.com/alcionai/corso/src/internal/tester"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/backup/identity"
 	"github.com/alcionai/corso/src/pkg/fault"
@@ -879,14 +880,14 @@ func makeManifestEntry(
 	id, tenant, resourceOwner string,
 	service path.ServiceType,
 	categories ...path.CategoryType,
-) ManifestEntry {
+) backup.ManifestEntry {
 	var reasons []identity.Reasoner
 
 	for _, c := range categories {
 		reasons = append(reasons, NewReason(tenant, resourceOwner, service, c))
 	}
 
-	return ManifestEntry{
+	return backup.ManifestEntry{
 		Manifest: &snapshot.Manifest{
 			ID: manifest.ID(id),
 		},
@@ -1198,7 +1199,7 @@ func (suite *HierarchyBuilderUnitSuite) TestBuildDirectoryTreeSingleSubtree() {
 			dirTree, err := inflateDirTree(
 				ctx,
 				msw,
-				[]ManifestEntry{
+				[]backup.ManifestEntry{
 					makeManifestEntry("", testTenant, testUser, path.ExchangeService, path.EmailCategory),
 				},
 				test.inputCollections(),
@@ -1913,7 +1914,7 @@ func (suite *HierarchyBuilderUnitSuite) TestBuildDirectoryTreeMultipleSubdirecto
 			dirTree, err := inflateDirTree(
 				ctx,
 				msw,
-				[]ManifestEntry{
+				[]backup.ManifestEntry{
 					makeManifestEntry("", testTenant, testUser, path.ExchangeService, path.EmailCategory),
 				},
 				test.inputCollections(t),
@@ -2057,7 +2058,7 @@ func (suite *HierarchyBuilderUnitSuite) TestBuildDirectoryTreeSkipsDeletedSubtre
 	dirTree, err := inflateDirTree(
 		ctx,
 		msw,
-		[]ManifestEntry{
+		[]backup.ManifestEntry{
 			makeManifestEntry("", testTenant, testUser, path.ExchangeService, path.EmailCategory),
 		},
 		collections,
@@ -2157,7 +2158,7 @@ func (suite *HierarchyBuilderUnitSuite) TestBuildDirectoryTree_HandleEmptyBase()
 	dirTree, err := inflateDirTree(
 		ctx,
 		msw,
-		[]ManifestEntry{
+		[]backup.ManifestEntry{
 			makeManifestEntry("", testTenant, testUser, path.ExchangeService, path.EmailCategory),
 		},
 		collections,
@@ -2373,7 +2374,7 @@ func (suite *HierarchyBuilderUnitSuite) TestBuildDirectoryTreeSelectsCorrectSubt
 	dirTree, err := inflateDirTree(
 		ctx,
 		msw,
-		[]ManifestEntry{
+		[]backup.ManifestEntry{
 			makeManifestEntry("id1", testTenant, testUser, path.ExchangeService, path.ContactsCategory),
 			makeManifestEntry("id2", testTenant, testUser, path.ExchangeService, path.EmailCategory),
 		},
@@ -2526,7 +2527,7 @@ func (suite *HierarchyBuilderUnitSuite) TestBuildDirectoryTreeSelectsMigrateSubt
 	dirTree, err := inflateDirTree(
 		ctx,
 		msw,
-		[]ManifestEntry{
+		[]backup.ManifestEntry{
 			makeManifestEntry("id1", testTenant, testUser, path.ExchangeService, path.EmailCategory, path.ContactsCategory),
 		},
 		[]data.BackupCollection{mce, mcc},
@@ -3451,7 +3452,7 @@ func (suite *HierarchyBuilderUnitSuite) TestBuildDirectoryTree_SelectiveSubtreeP
 			dirTree, err := inflateDirTree(
 				ctx,
 				msw,
-				[]ManifestEntry{
+				[]backup.ManifestEntry{
 					makeManifestEntry("", tenant, user, path.OneDriveService, path.FilesCategory),
 				},
 				test.inputCollections(t),
diff --git a/src/internal/kopia/wrapper.go b/src/internal/kopia/wrapper.go
index 10523de6c..ddb6acacf 100644
--- a/src/internal/kopia/wrapper.go
+++ b/src/internal/kopia/wrapper.go
@@ -23,6 +23,7 @@ import (
 	"github.com/alcionai/corso/src/internal/diagnostics"
 	"github.com/alcionai/corso/src/internal/observe"
 	"github.com/alcionai/corso/src/internal/stats"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/backup/identity"
 	"github.com/alcionai/corso/src/pkg/control/repository"
@@ -139,7 +140,7 @@ func (w *Wrapper) Close(ctx context.Context) error {
 func (w Wrapper) ConsumeBackupCollections(
 	ctx context.Context,
 	backupReasons []identity.Reasoner,
-	bases BackupBases,
+	bases backup.BackupBases,
 	collections []data.BackupCollection,
 	globalExcludeSet prefixmatcher.StringSetReader,
 	additionalTags map[string]string,
@@ -169,8 +170,8 @@ func (w Wrapper) ConsumeBackupCollections(
 	// snapshot bases into inflateDirTree so that the new snapshot
 	// includes historical data.
 	var (
-		mergeBase  []ManifestEntry
-		assistBase []ManifestEntry
+		mergeBase  []backup.ManifestEntry
+		assistBase []backup.ManifestEntry
 	)
 
 	if bases != nil {
@@ -220,7 +221,7 @@ func (w Wrapper) ConsumeBackupCollections(
 
 func (w Wrapper) makeSnapshotWithRoot(
 	ctx context.Context,
-	prevSnapEntries []ManifestEntry,
+	prevSnapEntries []backup.ManifestEntry,
 	root fs.Directory,
 	addlTags map[string]string,
 	progress *corsoProgress,
@@ -253,7 +254,7 @@ func (w Wrapper) makeSnapshotWithRoot(
 	tags := map[string]string{}
 
 	for k, v := range addlTags {
-		mk, mv := makeTagKV(k)
+		mk, mv := backup.MakeTagKV(k)
 
 		if len(v) == 0 {
 			v = mv
diff --git a/src/internal/kopia/wrapper_test.go b/src/internal/kopia/wrapper_test.go
index 7b4508465..01915dde2 100644
--- a/src/internal/kopia/wrapper_test.go
+++ b/src/internal/kopia/wrapper_test.go
@@ -28,6 +28,7 @@ import (
 	"github.com/alcionai/corso/src/internal/m365/collection/drive/metadata"
 	exchMock "github.com/alcionai/corso/src/internal/m365/service/exchange/mock"
 	"github.com/alcionai/corso/src/internal/tester"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/backup/identity"
 	"github.com/alcionai/corso/src/pkg/control/repository"
@@ -837,7 +838,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 
 	type testCase struct {
 		name                  string
-		baseBackups           func(base ManifestEntry) BackupBases
+		baseBackups           func(base backup.ManifestEntry) backup.BackupBases
 		collections           []data.BackupCollection
 		expectedUploadedFiles int
 		expectedCachedFiles   int
@@ -862,7 +863,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 	// Initial backup. All files should be considered new by kopia.
 	baseBackupCase := testCase{
 		name: "Uncached",
-		baseBackups: func(ManifestEntry) BackupBases {
+		baseBackups: func(backup.ManifestEntry) backup.BackupBases {
 			return NewMockBackupBases()
 		},
 		collections:           collections,
@@ -873,8 +874,8 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 		uploadedBytes:         []int64{8000, 10000},
 	}
 
-	runAndTestBackup := func(test testCase, base ManifestEntry) ManifestEntry {
-		var res ManifestEntry
+	runAndTestBackup := func(test testCase, base backup.ManifestEntry) backup.ManifestEntry {
+		var res backup.ManifestEntry
 
 		suite.Run(test.name, func() {
 			t := suite.T()
@@ -945,7 +946,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 				manifest.ID(stats.SnapshotID))
 			require.NoError(t, err, clues.ToCore(err))
 
-			res = ManifestEntry{
+			res = backup.ManifestEntry{
 				Manifest: snap,
 				Reasons:  reasons,
 			}
@@ -954,12 +955,12 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 		return res
 	}
 
-	base := runAndTestBackup(baseBackupCase, ManifestEntry{})
+	base := runAndTestBackup(baseBackupCase, backup.ManifestEntry{})
 
 	table := []testCase{
 		{
 			name: "Kopia Assist And Merge All Files Changed",
-			baseBackups: func(base ManifestEntry) BackupBases {
+			baseBackups: func(base backup.ManifestEntry) backup.BackupBases {
 				return NewMockBackupBases().WithMergeBases(base)
 			},
 			collections:           collections,
@@ -973,7 +974,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 		},
 		{
 			name: "Kopia Assist And Merge No Files Changed",
-			baseBackups: func(base ManifestEntry) BackupBases {
+			baseBackups: func(base backup.ManifestEntry) backup.BackupBases {
 				return NewMockBackupBases().WithMergeBases(base)
 			},
 			// Pass in empty collections to force a backup. Otherwise we'll skip
@@ -995,7 +996,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 		},
 		{
 			name: "Kopia Assist Only",
-			baseBackups: func(base ManifestEntry) BackupBases {
+			baseBackups: func(base backup.ManifestEntry) backup.BackupBases {
 				return NewMockBackupBases().WithAssistBases(base)
 			},
 			collections:           collections,
@@ -1008,7 +1009,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 		},
 		{
 			name: "Merge Only",
-			baseBackups: func(base ManifestEntry) BackupBases {
+			baseBackups: func(base backup.ManifestEntry) backup.BackupBases {
 				return NewMockBackupBases().WithMergeBases(base).MockDisableAssistBases()
 			},
 			// Pass in empty collections to force a backup. Otherwise we'll skip
@@ -1028,7 +1029,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 		},
 		{
 			name: "Content Hash Only",
-			baseBackups: func(base ManifestEntry) BackupBases {
+			baseBackups: func(base backup.ManifestEntry) backup.BackupBases {
 				return NewMockBackupBases()
 			},
 			collections:           collections,
@@ -1231,7 +1232,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections_NoDetailsForMeta() {
 			require.NoError(t, err, clues.ToCore(err))
 
 			prevSnaps.WithMergeBases(
-				ManifestEntry{
+				backup.ManifestEntry{
 					Manifest: snap,
 					Reasons:  reasons,
 				})
@@ -1719,7 +1720,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestBackupExcludeItem() {
 				suite.ctx,
 				[]identity.Reasoner{r},
 				NewMockBackupBases().WithMergeBases(
-					ManifestEntry{
+					backup.ManifestEntry{
 						Manifest: man,
 						Reasons:  []identity.Reasoner{r},
 					}),
diff --git a/src/internal/m365/backup.go b/src/internal/m365/backup.go
index 7b54c36cb..2c5a64c96 100644
--- a/src/internal/m365/backup.go
+++ b/src/internal/m365/backup.go
@@ -8,7 +8,6 @@ import (
 	"github.com/alcionai/corso/src/internal/common/prefixmatcher"
 	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/diagnostics"
-	"github.com/alcionai/corso/src/internal/kopia"
 	kinject "github.com/alcionai/corso/src/internal/kopia/inject"
 	"github.com/alcionai/corso/src/internal/m365/graph"
 	"github.com/alcionai/corso/src/internal/m365/service/exchange"
@@ -16,6 +15,7 @@ import (
 	"github.com/alcionai/corso/src/internal/m365/service/onedrive"
 	"github.com/alcionai/corso/src/internal/m365/service/sharepoint"
 	"github.com/alcionai/corso/src/internal/operations/inject"
+	"github.com/alcionai/corso/src/pkg/backup"
 	bupMD "github.com/alcionai/corso/src/pkg/backup/metadata"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/filters"
@@ -176,7 +176,7 @@ func verifyBackupInputs(sels selectors.Selector, cachedIDs []string) error {
 func (ctrl *Controller) GetMetadataPaths(
 	ctx context.Context,
 	r kinject.RestoreProducer,
-	man kopia.ManifestEntry,
+	man backup.ManifestEntry,
 	errs *fault.Bus,
 ) ([]path.RestorePaths, error) {
 	var (
diff --git a/src/internal/m365/mock/connector.go b/src/internal/m365/mock/connector.go
index 20d17eed1..3e25de00e 100644
--- a/src/internal/m365/mock/connector.go
+++ b/src/internal/m365/mock/connector.go
@@ -8,9 +8,9 @@ import (
 	"github.com/alcionai/corso/src/internal/common/idname"
 	"github.com/alcionai/corso/src/internal/common/prefixmatcher"
 	"github.com/alcionai/corso/src/internal/data"
-	"github.com/alcionai/corso/src/internal/kopia"
 	kinject "github.com/alcionai/corso/src/internal/kopia/inject"
 	"github.com/alcionai/corso/src/internal/operations/inject"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/control"
 	"github.com/alcionai/corso/src/pkg/count"
@@ -53,7 +53,7 @@ func (ctrl Controller) ProduceBackupCollections(
 func (ctrl *Controller) GetMetadataPaths(
 	ctx context.Context,
 	r kinject.RestoreProducer,
-	man kopia.ManifestEntry,
+	man backup.ManifestEntry,
 	errs *fault.Bus,
 ) ([]path.RestorePaths, error) {
 	return nil, clues.New("not implemented")
diff --git a/src/internal/operations/backup.go b/src/internal/operations/backup.go
index 80b74277e..00bd3e557 100644
--- a/src/internal/operations/backup.go
+++ b/src/internal/operations/backup.go
@@ -494,7 +494,7 @@ func consumeBackupCollections(
 	bc kinject.BackupConsumer,
 	tenantID string,
 	reasons []identity.Reasoner,
-	bbs kopia.BackupBases,
+	bbs backup.BackupBases,
 	cs []data.BackupCollection,
 	pmr prefixmatcher.StringSetReader,
 	backupID model.StableID,
@@ -598,7 +598,7 @@ func getNewPathRefs(
 func mergeItemsFromBase(
 	ctx context.Context,
 	checkReason bool,
-	baseBackup kopia.BackupEntry,
+	baseBackup backup.BackupEntry,
 	detailsStore streamstore.Streamer,
 	dataFromBackup kopia.DetailsMergeInfoer,
 	deets *details.Builder,
@@ -702,7 +702,7 @@ func mergeItemsFromBase(
 func mergeDetails(
 	ctx context.Context,
 	detailsStore streamstore.Streamer,
-	bases kopia.BackupBases,
+	bases backup.BackupBases,
 	dataFromBackup kopia.DetailsMergeInfoer,
 	deets *details.Builder,
 	writeStats *kopia.BackupStats,
@@ -843,6 +843,7 @@ func (op *BackupOperation) persistResults(
 func (op *BackupOperation) createBackupModels(
 	ctx context.Context,
 	sscw streamstore.CollectorWriter,
+	bases backup.BackupBases,
 	opStats backupStats,
 	backupID model.StableID,
 	backupVersion int,
diff --git a/src/internal/operations/backup_test.go b/src/internal/operations/backup_test.go
index a06e3c3bf..0b77b3a1f 100644
--- a/src/internal/operations/backup_test.go
+++ b/src/internal/operations/backup_test.go
@@ -121,7 +121,7 @@ func checkPaths(t *testing.T, expected, got []path.Path) {
 type mockBackupConsumer struct {
 	checkFunc func(
 		backupReasons []identity.Reasoner,
-		bases kopia.BackupBases,
+		bases backup.BackupBases,
 		cs []data.BackupCollection,
 		tags map[string]string,
 		buildTreeWithBase bool)
@@ -130,7 +130,7 @@ type mockBackupConsumer struct {
 func (mbu mockBackupConsumer) ConsumeBackupCollections(
 	ctx context.Context,
 	backupReasons []identity.Reasoner,
-	bases kopia.BackupBases,
+	bases backup.BackupBases,
 	cs []data.BackupCollection,
 	excluded prefixmatcher.StringSetReader,
 	tags map[string]string,
@@ -477,13 +477,13 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_ConsumeBackupDataCollections
 		}
 
 		bases = kopia.NewMockBackupBases().WithMergeBases(
-			kopia.ManifestEntry{
+			backup.ManifestEntry{
 				Manifest: manifest1,
 				Reasons: []identity.Reasoner{
 					emailReason,
 				},
 			}).WithAssistBases(
-			kopia.ManifestEntry{
+			backup.ManifestEntry{
 				Manifest: manifest2,
 				Reasons: []identity.Reasoner{
 					contactsReason,
@@ -500,7 +500,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_ConsumeBackupDataCollections
 	mbu := &mockBackupConsumer{
 		checkFunc: func(
 			backupReasons []identity.Reasoner,
-			gotBases kopia.BackupBases,
+			gotBases backup.BackupBases,
 			cs []data.BackupCollection,
 			gotTags map[string]string,
 			buildTreeWithBase bool,
@@ -631,8 +631,8 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 	table := []struct {
 		name               string
 		populatedDetails   map[string]*details.Details
-		inputBackups       []kopia.BackupEntry
-		inputAssistBackups []kopia.BackupEntry
+		inputBackups       []backup.BackupEntry
+		inputAssistBackups []backup.BackupEntry
 		mdm                *mockDetailsMergeInfoer
 
 		errCheck        assert.ErrorAssertionFunc
@@ -659,7 +659,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup.Backup{
 						BaseModel: model.BaseModel{
@@ -683,7 +683,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -710,7 +710,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -766,7 +766,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -793,7 +793,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -823,7 +823,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -853,7 +853,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -883,7 +883,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -914,7 +914,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -945,7 +945,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -993,7 +993,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -1002,7 +1002,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 					},
 				},
 			},
-			inputAssistBackups: []kopia.BackupEntry{
+			inputAssistBackups: []backup.BackupEntry{
 				{Backup: &backup2},
 			},
 			populatedDetails: map[string]*details.Details{
@@ -1037,7 +1037,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputBackups: []kopia.BackupEntry{
+			inputBackups: []backup.BackupEntry{
 				{
 					Backup: &backup1,
 					Reasons: []identity.Reasoner{
@@ -1045,7 +1045,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 					},
 				},
 			},
-			inputAssistBackups: []kopia.BackupEntry{
+			inputAssistBackups: []backup.BackupEntry{
 				{Backup: &backup2},
 			},
 			populatedDetails: map[string]*details.Details{
@@ -1077,7 +1077,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputAssistBackups: []kopia.BackupEntry{
+			inputAssistBackups: []backup.BackupEntry{
 				{Backup: &backup1},
 				{Backup: &backup2},
 			},
@@ -1110,7 +1110,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputAssistBackups: []kopia.BackupEntry{
+			inputAssistBackups: []backup.BackupEntry{
 				{Backup: &backup1},
 				{Backup: &backup2},
 			},
@@ -1143,7 +1143,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 
 				return res
 			}(),
-			inputAssistBackups: []kopia.BackupEntry{
+			inputAssistBackups: []backup.BackupEntry{
 				{Backup: &backup1},
 				{Backup: &backup2},
 			},
@@ -1173,7 +1173,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsItems
 			mdm: func() *mockDetailsMergeInfoer {
 				return newMockDetailsMergeInfoer()
 			}(),
-			inputAssistBackups: []kopia.BackupEntry{
+			inputAssistBackups: []backup.BackupEntry{
 				{Backup: &backup1},
 			},
 			populatedDetails: map[string]*details.Details{
@@ -1273,7 +1273,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_MergeBackupDetails_AddsFolde
 			itemPath1.Service(),
 			itemPath1.Category())
 
-		backup1 = kopia.BackupEntry{
+		backup1 = backup.BackupEntry{
 			Backup: &backup.Backup{
 				BaseModel: model.BaseModel{
 					ID: "bid1",
diff --git a/src/internal/operations/inject/inject.go b/src/internal/operations/inject/inject.go
index e7b4ba228..5109d0349 100644
--- a/src/internal/operations/inject/inject.go
+++ b/src/internal/operations/inject/inject.go
@@ -6,8 +6,8 @@ import (
 	"github.com/alcionai/corso/src/internal/common/idname"
 	"github.com/alcionai/corso/src/internal/common/prefixmatcher"
 	"github.com/alcionai/corso/src/internal/data"
-	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/kopia/inject"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/control"
 	"github.com/alcionai/corso/src/pkg/control/repository"
@@ -37,7 +37,7 @@ type (
 		GetMetadataPaths(
 			ctx context.Context,
 			r inject.RestoreProducer,
-			man kopia.ManifestEntry,
+			man backup.ManifestEntry,
 			errs *fault.Bus,
 		) ([]path.RestorePaths, error)
 
diff --git a/src/internal/operations/inject/mock/inject.go b/src/internal/operations/inject/mock/inject.go
index 408da22b9..46105e394 100644
--- a/src/internal/operations/inject/mock/inject.go
+++ b/src/internal/operations/inject/mock/inject.go
@@ -7,10 +7,10 @@ import (
 
 	"github.com/alcionai/corso/src/internal/common/prefixmatcher"
 	"github.com/alcionai/corso/src/internal/data"
-	"github.com/alcionai/corso/src/internal/kopia"
 	kinject "github.com/alcionai/corso/src/internal/kopia/inject"
 	"github.com/alcionai/corso/src/internal/m365"
 	"github.com/alcionai/corso/src/internal/operations/inject"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/path"
 )
@@ -62,7 +62,7 @@ func (mbp *mockBackupProducer) Wait() *data.CollectionStats {
 func (mbp mockBackupProducer) GetMetadataPaths(
 	ctx context.Context,
 	r kinject.RestoreProducer,
-	man kopia.ManifestEntry,
+	man backup.ManifestEntry,
 	errs *fault.Bus,
 ) ([]path.RestorePaths, error) {
 	ctrl := m365.Controller{}
diff --git a/src/internal/operations/manifests.go b/src/internal/operations/manifests.go
index 9777bb5fd..4b6e6fe4e 100644
--- a/src/internal/operations/manifests.go
+++ b/src/internal/operations/manifests.go
@@ -10,6 +10,7 @@ import (
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/kopia/inject"
 	oinject "github.com/alcionai/corso/src/internal/operations/inject"
+	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/backup/identity"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/logger"
@@ -23,7 +24,7 @@ func produceManifestsAndMetadata(
 	reasons, fallbackReasons []identity.Reasoner,
 	tenantID string,
 	getMetadata, dropAssistBases bool,
-) (kopia.BackupBases, []data.RestoreCollection, bool, error) {
+) (backup.BackupBases, []data.RestoreCollection, bool, error) {
 	bb, meta, useMergeBases, err := getManifestsAndMetadata(
 		ctx,
 		bf,
@@ -62,7 +63,7 @@ func getManifestsAndMetadata(
 	reasons, fallbackReasons []identity.Reasoner,
 	tenantID string,
 	getMetadata bool,
-) (kopia.BackupBases, []data.RestoreCollection, bool, error) {
+) (backup.BackupBases, []data.RestoreCollection, bool, error) {
 	var (
 		tags        = map[string]string{kopia.TagBackupCategory: ""}
 		collections []data.RestoreCollection
diff --git a/src/internal/operations/manifests_test.go b/src/internal/operations/manifests_test.go
index 8bf26c3ec..89b28f16f 100644
--- a/src/internal/operations/manifests_test.go
+++ b/src/internal/operations/manifests_test.go
@@ -50,14 +50,14 @@ type mockBackupFinder struct {
 	// beyond that and results are returned for the union of the reasons anyway.
 	// This does assume that the return data is properly constructed to return a
 	// union of the reasons etc.
-	data map[string]kopia.BackupBases
+	data map[string]backup.BackupBases
 }
 
 func (bf *mockBackupFinder) FindBases(
 	_ context.Context,
 	reasons []identity.Reasoner,
 	_ map[string]string,
-) kopia.BackupBases {
+) backup.BackupBases {
 	if len(reasons) == 0 {
 		return kopia.NewMockBackupBases()
 	}
@@ -290,7 +290,7 @@ func (suite *OperationsManifestsUnitSuite) TestGetMetadataPaths() {
 			mr := mockRestoreProducer{err: test.expectErr, colls: test.preFetchCollection}
 			mr.buildRestoreFunc(t, test.manID, paths)
 
-			man := kopia.ManifestEntry{
+			man := backup.ManifestEntry{
 				Manifest: &snapshot.Manifest{ID: manifest.ID(test.manID)},
 				Reasons:  test.reasons,
 			}
@@ -327,8 +327,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		did = "detailsid"
 	)
 
-	makeMan := func(id, incmpl string, cats ...path.CategoryType) kopia.ManifestEntry {
-		return kopia.ManifestEntry{
+	makeMan := func(id, incmpl string, cats ...path.CategoryType) backup.ManifestEntry {
+		return backup.ManifestEntry{
 			Manifest: &snapshot.Manifest{
 				ID:               manifest.ID(id),
 				IncompleteReason: incmpl,
@@ -337,8 +337,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		}
 	}
 
-	makeBackup := func(snapID string, cats ...path.CategoryType) kopia.BackupEntry {
-		return kopia.BackupEntry{
+	makeBackup := func(snapID string, cats ...path.CategoryType) backup.BackupEntry {
+		return backup.BackupEntry{
 			Backup: &backup.Backup{
 				BaseModel: model.BaseModel{
 					ID: model.StableID(snapID + "bup"),
@@ -361,7 +361,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		assertB     assert.BoolAssertionFunc
 		expectDCS   []mockColl
 		expectPaths func(t *testing.T, gotPaths []path.Path)
-		expectMans  kopia.BackupBases
+		expectMans  backup.BackupBases
 	}{
 		{
 			name:       "don't get metadata, no mans",
@@ -376,7 +376,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "don't get metadata",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan("id1", "", path.EmailCategory)).
 						WithBackups(makeBackup("id1", path.EmailCategory)),
@@ -398,7 +398,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "don't get metadata, incomplete manifest",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithAssistBases(
 						makeMan("id1", "checkpoint", path.EmailCategory)),
 				},
@@ -420,7 +420,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "one valid man, multiple reasons",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithMergeBases(
 						makeMan("id1", "", path.EmailCategory, path.ContactsCategory)),
 				},
@@ -462,7 +462,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "one valid man, extra incomplete man",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan("id1", "", path.EmailCategory)).
 						WithAssistBases(makeMan("id2", "checkpoint", path.EmailCategory)),
@@ -488,7 +488,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "one valid man, extra incomplete man, drop assist bases",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan("id1", "", path.EmailCategory)).
 						WithAssistBases(makeMan("id2", "checkpoint", path.EmailCategory)),
@@ -515,7 +515,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "multiple valid mans",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithMergeBases(
 						makeMan("id1", "", path.EmailCategory),
 						makeMan("id2", "", path.EmailCategory)),
@@ -541,7 +541,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "error collecting metadata",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan("id1", "", path.EmailCategory)),
 				},
@@ -628,8 +628,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		did  = "detailsid"
 	)
 
-	makeMan := func(ro, id, incmpl string, cats ...path.CategoryType) kopia.ManifestEntry {
-		return kopia.ManifestEntry{
+	makeMan := func(ro, id, incmpl string, cats ...path.CategoryType) backup.ManifestEntry {
+		return backup.ManifestEntry{
 			Manifest: &snapshot.Manifest{
 				ID:               manifest.ID(id),
 				IncompleteReason: incmpl,
@@ -639,8 +639,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		}
 	}
 
-	makeBackup := func(ro, snapID string, cats ...path.CategoryType) kopia.BackupEntry {
-		return kopia.BackupEntry{
+	makeBackup := func(ro, snapID string, cats ...path.CategoryType) backup.BackupEntry {
+		return backup.BackupEntry{
 			Backup: &backup.Backup{
 				BaseModel: model.BaseModel{
 					ID: model.StableID(snapID + "bup"),
@@ -675,12 +675,12 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		assertErr       assert.ErrorAssertionFunc
 		assertB         assert.BoolAssertionFunc
 		expectDCS       []mockColl
-		expectMans      kopia.BackupBases
+		expectMans      backup.BackupBases
 	}{
 		{
 			name: "don't get metadata, only fallbacks",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					fbro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan(fbro, "fb_id1", "", path.EmailCategory)).
 						WithBackups(makeBackup(fbro, "fb_id1", path.EmailCategory)),
@@ -700,7 +700,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "only fallbacks",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					fbro: kopia.NewMockBackupBases().WithMergeBases(
 						makeMan(fbro, "fb_id1", "", path.EmailCategory)).WithBackups(
 						makeBackup(fbro, "fb_id1", path.EmailCategory)),
@@ -723,7 +723,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "only fallbacks, drop assist",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					fbro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan(fbro, "fb_id1", "", path.EmailCategory)).
 						WithBackups(makeBackup(fbro, "fb_id1", path.EmailCategory)),
@@ -748,7 +748,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "complete mans and fallbacks",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan(ro, "id1", "", path.EmailCategory)),
 					fbro: kopia.NewMockBackupBases().
@@ -774,7 +774,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "incomplete mans and fallbacks",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithAssistBases(
 						makeMan(ro, "id2", "checkpoint", path.EmailCategory)),
 					fbro: kopia.NewMockBackupBases().WithAssistBases(
@@ -799,7 +799,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "complete and incomplete mans and fallbacks",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().
 						WithMergeBases(makeMan(ro, "id1", "", path.EmailCategory)).
 						WithAssistBases(makeMan(ro, "id2", "checkpoint", path.EmailCategory)),
@@ -830,7 +830,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "incomplete mans and complete fallbacks",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithAssistBases(
 						makeMan(ro, "id2", "checkpoint", path.EmailCategory)),
 					fbro: kopia.NewMockBackupBases().
@@ -858,7 +858,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "incomplete mans and complete fallbacks, no assist bases",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithAssistBases(
 						makeMan(ro, "id2", "checkpoint", path.EmailCategory)),
 					fbro: kopia.NewMockBackupBases().
@@ -887,7 +887,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "complete mans and incomplete fallbacks",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithMergeBases(
 						makeMan(ro, "id1", "", path.EmailCategory)),
 					fbro: kopia.NewMockBackupBases().WithAssistBases(
@@ -912,7 +912,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "complete mans and complete fallbacks, multiple reasons",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithMergeBases(
 						makeMan(ro, "id1", "", path.EmailCategory, path.ContactsCategory)),
 					fbro: kopia.NewMockBackupBases().
@@ -944,7 +944,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "complete mans and complete fallbacks, distinct reasons",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithMergeBases(
 						makeMan(ro, "id1", "", path.EmailCategory)),
 					fbro: kopia.NewMockBackupBases().
@@ -975,7 +975,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata_Fallb
 		{
 			name: "complete mans and complete fallbacks, fallback has superset of reasons",
 			bf: &mockBackupFinder{
-				data: map[string]kopia.BackupBases{
+				data: map[string]backup.BackupBases{
 					ro: kopia.NewMockBackupBases().WithMergeBases(
 						makeMan(ro, "id1", "", path.EmailCategory)),
 					fbro: kopia.NewMockBackupBases().