diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..16b0c7d
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,21 @@
+module go.wit.com/lib/gui/prep
+
+go 1.24.1
+
+require (
+	go.wit.com/dev/alexflint/arg v1.6.2
+	go.wit.com/gui v0.25.2
+	go.wit.com/lib/fhelp v0.0.21
+	go.wit.com/lib/gui/shell v0.22.33
+	go.wit.com/log v0.25.1
+)
+
+require (
+	github.com/alexflint/go-scalar v1.2.0 // indirect
+	github.com/go-cmd/cmd v1.4.3 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	go.wit.com/lib/protobuf/guipb v0.0.14 // indirect
+	go.wit.com/widget v1.1.30 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	google.golang.org/protobuf v1.36.9 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..0aa427e
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,38 @@
+github.com/alexflint/go-scalar v1.2.0 h1:WR7JPKkeNpnYIOfHRa7ivM21aWAdHD0gEWHCx+WQBRw=
+github.com/alexflint/go-scalar v1.2.0/go.mod h1:LoFvNMqS1CPrMVltza4LvnGKhaSpc3oyLEBUZVhhS2o=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-cmd/cmd v1.4.3 h1:6y3G+3UqPerXvPcXvj+5QNPHT02BUw7p6PsqRxLNA7Y=
+github.com/go-cmd/cmd v1.4.3/go.mod h1:u3hxg/ry+D5kwh8WvUkHLAMe2zQCaXd00t35WfQaOFk=
+github.com/go-test/deep v1.1.0 h1:WOcxcdHcvdgThNXjw0t76K42FXTU7HpNQWHpA2HHNlg=
+github.com/go-test/deep v1.1.0/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+go.wit.com/dev/alexflint/arg v1.6.2 h1:5TSmo0qJnfSY82MrjjtxFOoX7EkTmMs/hsmOcCFxNmU=
+go.wit.com/dev/alexflint/arg v1.6.2/go.mod h1:3MrBCZBVbb5vea1NpJ8pdwGoDXIAIOHcZqj0fGuRUrM=
+go.wit.com/gui v0.25.2 h1:Efs6sduON1a7I2MmV3QiPNGclHqOOCisNqbnbjQ/OpY=
+go.wit.com/gui v0.25.2/go.mod h1:jjAQ/g3QRZjZVQMrdvNYSbFGXdXmWJ1zKaMDoj/MZBI=
+go.wit.com/lib/fhelp v0.0.21 h1:igPYN0DkoqSkjgm5lO5cY8JK1DKhZDZkZKNAQbu4egk=
+go.wit.com/lib/fhelp v0.0.21/go.mod h1:8lRn3kJUuxkhief0JjbxL/ydw06ZJx/HLw7eMx9Xx9Y=
+go.wit.com/lib/gui/shell v0.22.33 h1:3MvWBQU4rOHK4Ac5MkQ62ndW7WhCBpu9F3AVeUF7YgQ=
+go.wit.com/lib/gui/shell v0.22.33/go.mod h1:aRDwKXKXkZaO4y/0KPe1lhKQCXpyi8hXgUEOrHhzpAI=
+go.wit.com/lib/protobuf/guipb v0.0.14 h1:K/SrSG6oCgem2UMrn3YeOGv2EPPZxKlk9wMNniFkGyQ=
+go.wit.com/lib/protobuf/guipb v0.0.14/go.mod h1:9AzFoNKnE0161IOTfdul6SX5+GPAFNW7RPKWohenmcQ=
+go.wit.com/log v0.25.1 h1:74WVf9NSN6z5jc2oSbA1ehxdZ7V/NBXTk5t0jIoaTMg=
+go.wit.com/log v0.25.1/go.mod h1:XE4lTfAibWgwBJksIk7u3IEJ8xcBvNhnlewYAQGj2Ew=
+go.wit.com/widget v1.1.30 h1:O/dIG7QtDrZkR5P6f8JAMyevBiMXSun9vL6F0KFAWV8=
+go.wit.com/widget v1.1.30/go.mod h1:wj7TpAr2gk7Poa+v8XQkH1aidnTdgAa/a8GxrMtcztw=
+golang.org/x/text v0.29.0 h1:1neNs90w9YzJ9BocxfsQNHKuAT4pkghyXc4nhZ6sJvk=
+golang.org/x/text v0.29.0/go.mod h1:7MhJOA9CD2qZyOKYazxdYMF85OwPdEr9jTtBpO7ydH4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v1.36.9 h1:w2gp2mA27hUeUzj9Ex9FBjsBm40zfaDtEWow293U7Iw=
+google.golang.org/protobuf v1.36.9/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXntxiD/uRU=
+gopkg.in/yaml.v3 v3.0.0 h1:hjy8E9ON/egN1tAYqKb61G10WtihqetD4sz2H+8nIeA=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=