diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 00000000..8be96a5c
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,24 @@
+{
+	"image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+	"features": {
+		"ghcr.io/devcontainers/features/github-cli:1": {},
+		"ghcr.io/devcontainers/features/common-utils:2": {
+			"configureZshAsDefaultShell": true,
+			"nonFreePackages": true
+		}
+	},
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"github.vscode-github-actions",
+				"ms-toolsai.jupyter",
+				"tamasfe.even-better-toml",
+				"julialang.language-julia"
+			],
+			"settings": {
+				"julia.executablePath": "~/.juliaup/bin/julia"
+			}
+		}
+	},
+	"onCreateCommand": "bash .devcontainer/onCreate.sh"
+}
\ No newline at end of file
diff --git a/.devcontainer/julia_startup.jl b/.devcontainer/julia_startup.jl
new file mode 100644
index 00000000..06be6e3b
--- /dev/null
+++ b/.devcontainer/julia_startup.jl
@@ -0,0 +1,2 @@
+ENV["JULIA_PKG_USE_CLI_GIT"] = true
+ENV["JULIA_PKG_SERVER_REGISTRY_PREFERENCE"] = "eager"
diff --git a/.devcontainer/onCreate.jl b/.devcontainer/onCreate.jl
new file mode 100644
index 00000000..cec50a31
--- /dev/null
+++ b/.devcontainer/onCreate.jl
@@ -0,0 +1,11 @@
+import Pkg
+
+Pkg.Registry.add(Pkg.RegistrySpec(url="https://github.com/cossio/CossioJuliaRegistry.git"))
+Pkg.Registry.add("General")
+
+Pkg.add([
+    "CairoMakie",
+    "Makie",
+    "MyRegistrator",
+    "Revise",
+])
diff --git a/.devcontainer/onCreate.sh b/.devcontainer/onCreate.sh
new file mode 100644
index 00000000..15dbd1b0
--- /dev/null
+++ b/.devcontainer/onCreate.sh
@@ -0,0 +1,18 @@
+# install Julia and make sure it's in the PATH of the current shell
+curl -fsSL https://install.julialang.org | sh -s -- --yes 
+
+# Julia startup file
+mkdir -p ~/.julia/config
+cp .devcontainer/julia_startup.jl ~/.julia/config/startup.jl
+
+# Github CLI autocomplete (https://www.ajfriesen.com/github-cli-auto-completion-with-oh-my-zsh/)
+mkdir -p ~/.oh-my-zsh/completions
+/usr/bin/gh completion -s zsh > ~/.oh-my-zsh/completions/_gh
+echo "autoload -U compinit" >> ~/.zshrc
+echo "compinit -i" >> ~/.zshrc
+
+# Directory to store Rfam data (set in LocalPreferences.toml)
+mkdir -p ~/data/Rfam
+
+# Install Julia packages, registries, ...
+/home/vscode/.juliaup/bin/julia .devcontainer/onCreate.jl
\ No newline at end of file
diff --git a/Project.toml b/Project.toml
index 35808ab7..8180658e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "RestrictedBoltzmannMachines"
 uuid = "12e6b396-7db5-4506-8cb6-664a4fe1e50e"
 authors = ["Jorge Fernandez-de-Cossio-Diaz <j.cossio.diaz@gmail.com>"]
-version = "3.3.1-DEV"
+version = "3.4.0"
 
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
diff --git a/src/RestrictedBoltzmannMachines.jl b/src/RestrictedBoltzmannMachines.jl
index b151866a..2e6e989c 100644
--- a/src/RestrictedBoltzmannMachines.jl
+++ b/src/RestrictedBoltzmannMachines.jl
@@ -32,6 +32,7 @@ include("rbm.jl")
 
 include("rbms/hopfield.jl")
 include("rbms/binary.jl")
+include("rbms/spin.jl")
 include("rbms/gaussian.jl")
 
 include("pseudolikelihood.jl")
diff --git a/src/rbms/spin.jl b/src/rbms/spin.jl
new file mode 100644
index 00000000..fea8917c
--- /dev/null
+++ b/src/rbms/spin.jl
@@ -0,0 +1,15 @@
+function SpinRBM(a::AbstractArray, b::AbstractArray, w::AbstractArray)
+    @assert size(w) == (size(a)..., size(b)...)
+    visible = Spin(; θ = a)
+    hidden = Spin(; θ = b)
+    return RBM(visible, hidden, w)
+end
+
+function SpinRBM(::Type{T}, N::Union{Int,Dims}, M::Union{Int,Dims}) where {T}
+    a = zeros(T, N...)
+    b = zeros(T, M...)
+    w = zeros(T, N..., M...)
+    return SpinRBM(a, b, w)
+end
+
+SpinRBM(N::Union{Int,Dims}, M::Union{Int,Dims}) = SpinRBM(Float64, N, M)