From a55fb3915c123be3636774f1668531eca764ca79 Mon Sep 17 00:00:00 2001
From: Michal Baumgartner <michal.baumgartner@deepnote.com>
Date: Fri, 23 Jan 2026 14:56:32 +0100
Subject: [PATCH 1/2] feat: Speed up R builds

---
 ir/ir-base/Dockerfile.ir      |  4 ++--
 ir/ir-with-libs/Dockerfile.ir | 45 ++++++++++++++++++++++-------------
 2 files changed, 31 insertions(+), 18 deletions(-)

diff --git a/ir/ir-base/Dockerfile.ir b/ir/ir-base/Dockerfile.ir
index 1de679a..ebce65d 100644
--- a/ir/ir-base/Dockerfile.ir
+++ b/ir/ir-base/Dockerfile.ir
@@ -25,9 +25,9 @@ RUN python -m venv jupyter-env && \
 	. ./jupyter-env/bin/activate && \
 	pip install --upgrade pip notebook
 
-# Install IRkernel and configure it
+# Install IRkernel and configure it (using Posit Package Manager for faster binary installs)
 RUN . ./jupyter-env/bin/activate && \
-	R -e "install.packages('IRkernel', repos='http://cran.rstudio.com/')" && \
+	R -e "install.packages('IRkernel', repos='https://packagemanager.posit.co/cran/__linux__/bullseye/latest')" && \
 	R -e "IRkernel::installspec()"
 
 # Clean up unnecessary files to reduce the image size
diff --git a/ir/ir-with-libs/Dockerfile.ir b/ir/ir-with-libs/Dockerfile.ir
index 54ff8d4..6511694 100644
--- a/ir/ir-with-libs/Dockerfile.ir
+++ b/ir/ir-with-libs/Dockerfile.ir
@@ -47,19 +47,32 @@ xfonts-base \
 xvfb \
 zlib1g-dev"
 
-RUN apt-get update && apt-get install -y ${BUILDDEPS} \
-  && \
-  # Install the R libraries
-  R -e "install.packages('tidyverse', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('data.table', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('RSQLite', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('remotes', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('reticulate', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('igraph', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('plotly', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('rgl', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('hdf5r', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  R -e "install.packages('rJava', repos='https://cloud.r-project.org', dependencies=TRUE)" && \
-  apt-get clean && \
-  apt-get remove --purge -y ${BUILDDEPS} && \
-	rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+# Use Posit Package Manager for precompiled Linux binaries
+ENV CRAN_REPO="https://packagemanager.posit.co/cran/__linux__/bullseye/latest"
+
+# R packages to install
+ENV R_PACKAGES="\
+tidyverse \
+data.table \
+RSQLite \
+remotes \
+reticulate \
+igraph \
+plotly \
+rgl \
+hdf5r \
+rJava"
+
+RUN apt-get update \
+  && apt-get install -y ${BUILDDEPS} \
+  && R -e " \
+    options(Ncpus = 4); \
+    install.packages( \
+      strsplit(Sys.getenv('R_PACKAGES'), '\\\\s+')[[1]], \
+      repos = Sys.getenv('CRAN_REPO'), \
+      dependencies = TRUE \
+    ) \
+  " \
+  && apt-get clean \
+  && apt-get remove --purge -y ${BUILDDEPS} \
+  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

From 3f01a394ad8039e931fc660d3b25696eec971e42 Mon Sep 17 00:00:00 2001
From: Michal Baumgartner <michal.baumgartner@deepnote.com>
Date: Fri, 23 Jan 2026 16:00:36 +0100
Subject: [PATCH 2/2] fix: Add HTTPUserAgent to actually download precompiled
 packages

---
 ir/ir-with-libs/Dockerfile.ir | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ir/ir-with-libs/Dockerfile.ir b/ir/ir-with-libs/Dockerfile.ir
index 6511694..f9aa872 100644
--- a/ir/ir-with-libs/Dockerfile.ir
+++ b/ir/ir-with-libs/Dockerfile.ir
@@ -66,7 +66,10 @@ rJava"
 RUN apt-get update \
   && apt-get install -y ${BUILDDEPS} \
   && R -e " \
-    options(Ncpus = 4); \
+    options( \
+      Ncpus = 4, \
+      HTTPUserAgent = sprintf('R/%s R (%s)', getRversion(), paste(getRversion(), R.version['platform'], R.version['arch'], R.version['os'])) \
+    ); \
     install.packages( \
       strsplit(Sys.getenv('R_PACKAGES'), '\\\\s+')[[1]], \
       repos = Sys.getenv('CRAN_REPO'), \