diff --git a/Project.toml b/Project.toml
index 29ee7fd..7209367 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ClimateModels"
 uuid = "f6adb021-9183-4f40-84dc-8cea6f651bb0"
 authors = ["gaelforget <gforget@mit.edu>"]
-version = "0.2.18"
+version = "0.2.19"
 
 [deps]
 CSV = "336ed68f-0bac-5ca0-87d4-7b16caf5d00b"
diff --git a/docs/src/API.md b/docs/src/API.md
index 870c204..a616c82 100644
--- a/docs/src/API.md
+++ b/docs/src/API.md
@@ -25,7 +25,7 @@ launch
 log
 ```
 
-Also provided : [`pathof`](@ref), [`readdir`](@ref), [`show`](@ref), [`clean`](@ref), and [`@ModelRun`](@ref)
+Also provided : [`pathof`](@ref), [`joinpath`](@ref), [`readdir`](@ref), [`show`](@ref), [`clean`](@ref), and [`@ModelRun`](@ref)
 
 ## [Notebook Methods](@id notebook_methods)
 
@@ -52,6 +52,7 @@ ModelRun
 
 ```@docs
 pathof
+joinpath
 readdir
 show
 clean
diff --git a/src/ClimateModels.jl b/src/ClimateModels.jl
index 3ebbfef..41f73ae 100644
--- a/src/ClimateModels.jl
+++ b/src/ClimateModels.jl
@@ -3,9 +3,15 @@ module ClimateModels
 using UUIDs, Suppressor, OrderedCollections
 using Pkg, Git, TOML, NetCDF
 
+include("interface.jl")
+include("notebooks.jl")
+include("toy_models.jl")
+
+import .notebooks: update
+
 export AbstractModelConfig, ModelConfig, PlutoConfig
 export ModelRun, @ModelRun, PkgDevConfig
-export clean, build, compile, setup, launch, notebooks
+export clean, build, compile, setup, launch, update, notebooks
 export put!, take!, pathof, readdir, log
 #export git_log_init, git_log_msg, git_log_fil
 #export git_log_prm, git_log_show
@@ -13,10 +19,6 @@ export put!, take!, pathof, readdir, log
 #export train, compare, analyze
 export RandomWalker
 
-export OrderedDict, UUID, uuid4, @suppress #should be commented out?
-
-include("interface.jl")
-include("notebooks.jl")
-include("toy_models.jl")
+#export OrderedDict, UUID, uuid4, @suppress
 
 end
diff --git a/src/interface.jl b/src/interface.jl
index 04ad9a1..91605a4 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -1,5 +1,5 @@
 
-import Base: put!, take!, pathof, readdir, log, run
+import Base: put!, take!, pathof, joinpath, readdir, log, run
 
 abstract type AbstractModelConfig end
 
@@ -96,7 +96,7 @@ PkgDevConfig(url::String,func::Function,inputs::NamedTuple) =
 """
     pathof(x::AbstractModelConfig)
 
-Returns the run directory path for x ; i.e. joinpath(x.folder,string(x.ID))
+Returns the run directory path for x ; i.e. `joinpath(x.folder,string(x.ID))`
 """
 pathof(x::AbstractModelConfig) = joinpath(x.folder,string(x.ID))
 
@@ -104,9 +104,17 @@ pathof(x::AbstractModelConfig) = joinpath(x.folder,string(x.ID))
 """
     pathof(x::AbstractModelConfig,subfolder::String)
 
-Same as pathof(joinpath(x,subfolder)).
+Same as `pathof(joinpath(x,subfolder))` or `joinpath(pathof(x),subfolder)`
 """
-pathof(x::AbstractModelConfig,subfolder::String) = joinpath(pathof(x),subfolder)
+pathof(x::AbstractModelConfig,subfolder...) = joinpath(x,subfolder...)
+
+
+"""
+    joinpath(x::AbstractModelConfig,y...)
+
+Same as `joinpath(pathof(x),y...)`
+"""
+joinpath(x::AbstractModelConfig,y...) = joinpath(pathof(x),y...)
 
 """
     readdir(x::AbstractModelConfig)
diff --git a/src/notebooks.jl b/src/notebooks.jl
index 902bef8..29f4922 100644
--- a/src/notebooks.jl
+++ b/src/notebooks.jl
@@ -259,8 +259,10 @@ function notebook_launch(MC::PlutoConfig)
     Pkg.instantiate()
 
     try
-        include("main.jl")
+        run(`julia --project=. main.jl`)
+        write("aok.txt","main.jl seems to have run aok")
     catch e
+        write("fail.txt","main.jl seems to have FAILED")
         tmp[1]="model run may have failed"
     end