diff --git a/plugins/sideload/sideload.go b/plugins/sideload/sideload.go
index 858af9a..2955875 100644
--- a/plugins/sideload/sideload.go
+++ b/plugins/sideload/sideload.go
@@ -2,6 +2,7 @@ package sideload
 
 import (
 	"bytes"
+	"io"
 	"io/fs"
 	"path/filepath"
 
@@ -10,11 +11,16 @@ import (
 
 type (
 	Sideload struct {
-		files       []*goldsmith.File
-		fileSystems []sideloadFs
+		files       []File
+		fileSystems []sfs
 	}
 
-	sideloadFs interface {
+	File struct {
+		Path   string
+		Reader io.Reader
+	}
+
+	sfs interface {
 		fs.ReadDirFS
 		fs.ReadFileFS
 	}
@@ -29,38 +35,43 @@ func (*Sideload) Name() string {
 }
 
 func (self *Sideload) Finalize(context *goldsmith.Context) error {
-	files := self.files
-
 	for _, fileSystem := range self.fileSystems {
-		currFiles, err := self.gatherFsFiles(context, fileSystem, ".")
+		files, err := self.gatherFsFiles(context, fileSystem, ".")
 		if err != nil {
 			return err
 		}
 
-		files = append(files, currFiles...)
+		for _, file := range files {
+			context.DispatchFile(file)
+		}
 	}
 
-	for _, file := range files {
-		context.DispatchFile(file)
+	for _, file := range self.files {
+		gsFile, err := context.CreateFileFromReader(file.Path, file.Reader)
+		if err != nil {
+			return err
+		}
+
+		context.DispatchFile(gsFile)
 	}
 
 	return nil
 }
 
-func (self *Sideload) Files(files ...*goldsmith.File) *Sideload {
+func (self *Sideload) Files(files ...File) *Sideload {
 	self.files = append(self.files, files...)
 	return self
 }
 
 func (self *Sideload) FileSystems(fileSystems ...fs.FS) *Sideload {
 	for _, fileSystem := range fileSystems {
-		self.fileSystems = append(self.fileSystems, fileSystem.(sideloadFs))
+		self.fileSystems = append(self.fileSystems, fileSystem.(sfs))
 	}
 
 	return self
 }
 
-func (self *Sideload) gatherFsFiles(context *goldsmith.Context, fileSystem sideloadFs, path string) ([]*goldsmith.File, error) {
+func (self *Sideload) gatherFsFiles(context *goldsmith.Context, fileSystem sfs, path string) ([]*goldsmith.File, error) {
 	entries, err := fileSystem.ReadDir(path)
 	if err != nil {
 		return nil, err
diff --git a/plugins/sideload/sideload_test.go b/plugins/sideload/sideload_test.go
index eac1685..28015ef 100644
--- a/plugins/sideload/sideload_test.go
+++ b/plugins/sideload/sideload_test.go
@@ -2,6 +2,7 @@ package sideload
 
 import (
 	"io/fs"
+	"strings"
 	"testing"
 
 	"embed"
@@ -10,19 +11,35 @@ import (
 	"git.foosoft.net/alex/goldsmith/harness"
 )
 
-//go:embed testdata/source
+//go:embed testdata/fs/source
 var embedFs embed.FS
 
-func Test(self *testing.T) {
-	subFs, err := fs.Sub(embedFs, "testdata/source")
-	if err != nil {
-		panic(err)
-	}
-
-	harness.Validate(
+func TestFs(self *testing.T) {
+	harness.ValidateCase(
 		self,
+		"fs",
 		func(gs *goldsmith.Goldsmith) {
+			subFs, err := fs.Sub(embedFs, "testdata/fs/source")
+			if err != nil {
+				panic(err)
+			}
+
 			gs.Chain(New().FileSystems(subFs))
 		},
 	)
 }
+
+func TestFile(self *testing.T) {
+	harness.ValidateCase(
+		self,
+		"file",
+		func(gs *goldsmith.Goldsmith) {
+			file := File{
+				Path:   "hello.txt",
+				Reader: strings.NewReader("hello world"),
+			}
+
+			gs.Chain(New().Files(file))
+		},
+	)
+}
diff --git a/plugins/sideload/testdata/file/reference/hello.txt b/plugins/sideload/testdata/file/reference/hello.txt
new file mode 100644
index 0000000..95d09f2
--- /dev/null
+++ b/plugins/sideload/testdata/file/reference/hello.txt
@@ -0,0 +1 @@
+hello world
\ No newline at end of file
diff --git a/plugins/sideload/testdata/reference/1.txt b/plugins/sideload/testdata/file/reference/test.txt
similarity index 100%
rename from plugins/sideload/testdata/reference/1.txt
rename to plugins/sideload/testdata/file/reference/test.txt
diff --git a/plugins/sideload/testdata/reference/child/2.txt b/plugins/sideload/testdata/file/source/test.txt
similarity index 100%
rename from plugins/sideload/testdata/reference/child/2.txt
rename to plugins/sideload/testdata/file/source/test.txt
diff --git a/plugins/sideload/testdata/source/1.txt b/plugins/sideload/testdata/fs/reference/1.txt
similarity index 100%
rename from plugins/sideload/testdata/source/1.txt
rename to plugins/sideload/testdata/fs/reference/1.txt
diff --git a/plugins/sideload/testdata/source/child/2.txt b/plugins/sideload/testdata/fs/reference/child/2.txt
similarity index 100%
rename from plugins/sideload/testdata/source/child/2.txt
rename to plugins/sideload/testdata/fs/reference/child/2.txt
diff --git a/plugins/sideload/testdata/fs/source/1.txt b/plugins/sideload/testdata/fs/source/1.txt
new file mode 100644
index 0000000..e69de29
diff --git a/plugins/sideload/testdata/fs/source/child/2.txt b/plugins/sideload/testdata/fs/source/child/2.txt
new file mode 100644
index 0000000..e69de29