diff --git a/README.md b/README.md
index adba5d6..659e90a 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,12 @@ These are settings that can be configured.
 - `MigrationFolder`: the folder where all migration SQL files are. Defaults to `db/migrations`
 - `LockTimeoutMinutes`: how long a lock can be held before it times out, in minutes. Defaults to 15
 
+You can also use the `LoggerOption` or `ZapOption` to use a specific logger.
+
+There is also an `FSOption` that can be used in conjunction with `MigrationFolder` to use an embedded file system.
+
+Check out the examples for more details on configuration.
+
 ## Design decisions and philosophy ##
 
 ### Checksums ###
diff --git a/database.go b/database.go
index 6f6320d..cbdd1ce 100644
--- a/database.go
+++ b/database.go
@@ -2,6 +2,7 @@ package migration
 
 import (
 	"database/sql"
+	"io/fs"
 	"log"
 	"os"
 )
@@ -14,6 +15,7 @@ type Service struct {
 	migrationLockTable string
 	migrationFolder    string
 	lockTimeoutMinutes int
+	fs                 fs.FS
 }
 
 // New returns a new Database instance.
@@ -25,6 +27,7 @@ func New(db *sql.DB, opts ...Option) *Service {
 		migrationLockTable: "migration_lock",
 		migrationFolder:    "db/migrations",
 		lockTimeoutMinutes: 15,
+		fs:                 os.DirFS("."),
 	}
 	for _, o := range opts {
 		o.apply(s)
@@ -78,3 +81,13 @@ func (c Config) apply(service *Service) {
 		service.lockTimeoutMinutes = c.LockTimeoutMinutes
 	}
 }
+
+// FSOption makes migration use a specific FileSystem, instead of the default.
+// useful with embed, for example.
+type FSOption struct {
+	FileSystem fs.FS
+}
+
+func (o FSOption) apply(service *Service) {
+	service.fs = o.FileSystem
+}
diff --git a/database_test.go b/database_test.go
index 218a7eb..4fb77a6 100644
--- a/database_test.go
+++ b/database_test.go
@@ -1,6 +1,7 @@
 package migration
 
 import (
+	"os"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -16,6 +17,7 @@ func TestService_WithFolder(t *testing.T) {
 		migrationLockTable: "migration_lock",
 		migrationFolder:    "test-name",
 		lockTimeoutMinutes: 15,
+		fs:                 os.DirFS("."),
 	}, s)
 }
 
@@ -29,6 +31,7 @@ func TestService_WithLockTableName(t *testing.T) {
 		migrationLockTable: "test-name",
 		migrationFolder:    "db/migrations",
 		lockTimeoutMinutes: 15,
+		fs:                 os.DirFS("."),
 	}, s)
 }
 
@@ -42,6 +45,7 @@ func TestService_WithLockTimeoutMinutes(t *testing.T) {
 		migrationLockTable: "migration_lock",
 		migrationFolder:    "db/migrations",
 		lockTimeoutMinutes: 20,
+		fs:                 os.DirFS("."),
 	}, s)
 }
 
@@ -55,5 +59,6 @@ func TestService_WithTableName(t *testing.T) {
 		migrationLockTable: "migration_lock",
 		migrationFolder:    "db/migrations",
 		lockTimeoutMinutes: 15,
+		fs:                 os.DirFS("."),
 	}, s)
 }
diff --git a/examples/embed/embed.go b/examples/embed/embed.go
new file mode 100644
index 0000000..ef858b4
--- /dev/null
+++ b/examples/embed/embed.go
@@ -0,0 +1,56 @@
+package main
+
+import (
+	"database/sql"
+	"embed"
+	"fmt"
+	"log"
+	"strings"
+
+	"github.com/stimtech/go-migration/v2"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+// Simple example app with an embedded filesystem.
+// An sqlite database will be created, and a table added.
+// Run with 'go run embed.go'.
+// Two migrations are present in db/migration and will be loaded into the db in alphabetical order.
+
+//go:embed embedded-fs/*.sql
+var migFS embed.FS
+
+func main() {
+	// connect to a new or existing sqlite datasource
+	db, err := sql.Open("sqlite3", "db.sqlite")
+	if err != nil {
+		log.Fatal("failed to create datasource", err)
+	}
+
+	// run migration
+	m := migration.New(db,
+		// the embedded filesystem contains the folder specified, so this will still need to be configured.
+		migration.Config{MigrationFolder: "embedded-fs"},
+		migration.FSOption{FileSystem: migFS})
+	err = m.Migrate()
+	if err != nil {
+		log.Fatal("failed to run database migration", err)
+	}
+
+	// list all tables in the database
+	res, err := db.Query("select name from sqlite_master where type='table' order by name")
+	if err != nil {
+		log.Fatal("failed to query database", err)
+	}
+
+	var tables []string
+	for res.Next() {
+		var tn string
+		if err := res.Scan(&tn); err != nil {
+			log.Fatal("failed to scan row", err)
+		}
+		tables = append(tables, tn)
+	}
+
+	log.Println(fmt.Sprintf("Tables in database: %s", strings.Join(tables, ", ")))
+}
diff --git a/examples/embed/embedded-fs/2022-12-20-init-db.sql b/examples/embed/embedded-fs/2022-12-20-init-db.sql
new file mode 100644
index 0000000..0965139
--- /dev/null
+++ b/examples/embed/embedded-fs/2022-12-20-init-db.sql
@@ -0,0 +1,3 @@
+create table my_table (
+    id integer primary key
+);
diff --git a/examples/embed/embedded-fs/2022-12-21-myTable-add-column.sql b/examples/embed/embedded-fs/2022-12-21-myTable-add-column.sql
new file mode 100644
index 0000000..37e7eb4
--- /dev/null
+++ b/examples/embed/embedded-fs/2022-12-21-myTable-add-column.sql
@@ -0,0 +1,2 @@
+alter table my_table add column test varchar(30);
+
diff --git a/go.mod b/go.mod
index 48e0030..991eb39 100644
--- a/go.mod
+++ b/go.mod
@@ -1,13 +1,28 @@
 module github.com/stimtech/go-migration/v2
 
-go 1.15
+go 1.19
 
 require (
 	github.com/go-sql-driver/mysql v1.6.0
 	github.com/jackc/pgx/v4 v4.11.0
 	github.com/mattn/go-sqlite3 v1.14.9
 	github.com/stretchr/testify v1.8.0
+	go.uber.org/zap v1.24.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
+	github.com/jackc/pgconn v1.8.1 // indirect
+	github.com/jackc/pgio v1.0.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgproto3/v2 v2.0.6 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b // indirect
+	github.com/jackc/pgtype v1.7.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
-	go.uber.org/zap v1.24.0
+	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2 // indirect
+	golang.org/x/text v0.3.3 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 5b634c7..d480faf 100644
--- a/go.sum
+++ b/go.sum
@@ -22,7 +22,6 @@ github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQ
 github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
 github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
-github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
@@ -125,7 +124,6 @@ github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpO
 github.com/hudl/fargo v1.3.0/go.mod h1:y3CKSmjA+wD2gak7sUSXTAoopbhU08POFhmITJgmKTg=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/influxdata/influxdb1-client v0.0.0-20191209144304-8bf82d3c094d/go.mod h1:qj24IKcXYK6Iy9ceXlo3Tc+vtHo9lIhSX5JddghvEPo=
-github.com/jackc/chunkreader v1.0.0 h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0=
 github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo=
 github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
 github.com/jackc/chunkreader/v2 v2.0.1 h1:i+RDz65UE+mmpjTfyz0MoVTnzeYxroil2G82ki7MGG8=
@@ -144,7 +142,6 @@ github.com/jackc/pgmock v0.0.0-20190831213851-13a1b77aafa2 h1:JVX6jT/XfzNqIjye47
 github.com/jackc/pgmock v0.0.0-20190831213851-13a1b77aafa2/go.mod h1:fGZlG77KXmcq05nJLRkk0+p82V8B8Dw8KN2/V9c/OAE=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
-github.com/jackc/pgproto3 v1.1.0 h1:FYYE4yRw+AgI8wXIinMlNjBbp/UitDJwfj5LqqewP1A=
 github.com/jackc/pgproto3 v1.1.0/go.mod h1:eR5FA3leWg7p9aeAqi37XOTgTIbkABlvcPB3E5rlc78=
 github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190420180111-c116219b62db/go.mod h1:bhq50y+xrl9n5mRYyCBFKkpRVTLYJVWeCc+mEAI3yXA=
 github.com/jackc/pgproto3/v2 v2.0.0-alpha1.0.20190609003834-432c2951c711/go.mod h1:uH0AWtUmuShn0bcesswc4aBTWGvw0cAxIJp+6OB//Wg=
@@ -317,7 +314,6 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
@@ -325,7 +321,6 @@ github.com/tmc/grpc-websocket-proxy v0.0.0-20170815181823-89b8d40f7ca8/go.mod h1
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
-github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738/go.mod h1:dnLIgRNXwCJa5e+c6mIZCrds/GIG4ncV9HhK5PX7jPg=
@@ -336,15 +331,12 @@ go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
-go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
 go.uber.org/atomic v1.10.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
 go.uber.org/goleak v1.1.11 h1:wy28qYRKZgnJTxGxvye5/wgWr1EKjmUDGYox5mGlRlI=
-go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
-go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=
 go.uber.org/multierr v1.9.0/go.mod h1:X2jQV1h+kxSjClGpnseKVIxpmcjrj7MNnI0bnlfKTVQ=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
@@ -370,12 +362,9 @@ golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
-golang.org/x/mod v0.4.2 h1:Gz96sIWK3OalVv/I/qNygP42zyoKp3xptRVCWRFEBvo=
-golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -393,7 +382,6 @@ golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -402,7 +390,6 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -424,9 +411,6 @@ golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210510120138-977fb7262007 h1:gG67DSER+11cZvqIMb8S8bt0vZtiN6xWYARwirrOSfE=
-golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -448,17 +432,12 @@ golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgw
 golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.1.5 h1:ouewzE6p+/VEB31YYnTbEJdi8pFqKp4P4n85vwo3DHA=
-golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
diff --git a/migration.go b/migration.go
index b25ec1d..e97421d 100644
--- a/migration.go
+++ b/migration.go
@@ -6,7 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"os"
+	"io/fs"
 	"sort"
 	"strings"
 	"time"
@@ -53,7 +53,7 @@ func (s *Service) Migrate() error {
 				return fmt.Errorf("failed to apply migration %s: %w", mig, err)
 			}
 		} else {
-			c, err := checkSum(fmt.Sprintf("%s/%s", s.migrationFolder, mig))
+			c, err := s.checkSum(fmt.Sprintf("%s/%s", s.migrationFolder, mig))
 
 			if err != nil {
 				return fmt.Errorf("failed to get checksum for file %s: %w", mig, err)
@@ -122,7 +122,7 @@ func (s *Service) fetchAppliedMigrations() (map[string]string, error) {
 }
 
 func (s *Service) listMigrations() ([]string, error) {
-	files, err := os.ReadDir(s.migrationFolder)
+	files, err := fs.ReadDir(s.fs, s.migrationFolder)
 	if err != nil {
 		return nil, err
 	}
@@ -136,12 +136,12 @@ func (s *Service) listMigrations() ([]string, error) {
 }
 
 func (s *Service) applyMigration(mig string) error {
-	c, err := checkSum(fmt.Sprintf("%s/%s", s.migrationFolder, mig))
+	c, err := s.checkSum(fmt.Sprintf("%s/%s", s.migrationFolder, mig))
 	if err != nil {
 		return fmt.Errorf("failed to get checksum for file %s: %w", mig, err)
 	}
 
-	file, err := os.ReadFile(s.migrationFolder + "/" + mig)
+	file, err := fs.ReadFile(s.fs, fmt.Sprintf("%s/%s", s.migrationFolder, mig))
 
 	if err != nil {
 		return fmt.Errorf("failed to read file %s: %w", mig, err)
@@ -181,8 +181,8 @@ func (s *Service) applyMigration(mig string) error {
 	return tx.Commit()
 }
 
-func checkSum(filename string) (string, error) {
-	input, err := os.Open(filename)
+func (s *Service) checkSum(filename string) (string, error) {
+	input, err := s.fs.Open(filename)
 	if err != nil {
 		return "", err
 	}
diff --git a/migration_test.go b/migration_test.go
index 96e491c..370bdc4 100644
--- a/migration_test.go
+++ b/migration_test.go
@@ -8,7 +8,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-
 	"go.uber.org/zap"
 
 	_ "github.com/go-sql-driver/mysql"
@@ -121,7 +120,7 @@ func TestService_Migrate(t *testing.T) {
 			}
 			defer func() { _ = db.Close() }()
 
-			s := New(db, ZapOption{Logger: zap.NewNop()}, Config{MigrationFolder: "test/failing-stmt"})
+			s := New(db, ZapOption{Logger: zap.NewNop()}, Config{MigrationFolder: "."}, FSOption{FileSystem: os.DirFS("test/failing-stmt")})
 
 			err = s.Migrate()
 			assert.Error(t, err)