omar-azmi · September 18, 2025 08:24 · iacobucci · Sep 17, 2025 · omar-azmi · Sep 17, 2025
diff --git a/setup_deno_on_termux.sh b/setup_deno_on_termux.sh
 # NOTE: to run this script remotely (without copy and pasting) simply execute:
 # curl -fsSL "https://gist.githubusercontent.com/omar-azmi/9510958fe24a7374856ccc75217330d5/raw/setup_deno_on_termux.sh" | sh

 # the following shell script will install the deno javascript runtime to your termux environment on android.
 # after that, it will patch the deno binary to use android/termux compatible libc shared libraries (which we will download beforehand)
 # finally, we will append the path to the deno library onto the PATH environment variable in your local `./.bachrc` file, so that `deno` will be available as a command on every terminal session.
 # the proceedure for making deno compatible with termux was gathered from the following resources:
 # - "https://github.com/denoland/deno/issues/19759"
 # - "https://gist.github.com/CodeIter/ccdcc840e432288ef1e01cc15d66c048"

 # 1. install pre-requisites:
 # - `glibc-repo` and `glibc` provide the termux-compatible shared libraries for libc (a dynamic dependency of deno)
 # - `patchelf` lets us patch the deno binary to use an alternate location for its dynamic dependencies on libc
 pkg install --yes glibc-repo
 pkg install --yes glibc
 pkg install --yes patchelf

 # 2. download and install deno.
 # we don't use the official script because it immediately executes deno to carry out additional tasks.
 # but we cannot run the deno binary here until it has been patched.
 target="aarch64-unknown-linux-gnu"
 deno_version="$(curl -s https://dl.deno.land/release-latest.txt)"
 deno_uri="https://dl.deno.land/release/${deno_version}/deno-${target}.zip"
 deno_install="${DENO_INSTALL:-$HOME/.deno}"
 bin_dir="${deno_install}/bin"
 exe="${bin_dir}/deno"

 if [ ! -d "${bin_dir}" ]; then mkdir -p "${bin_dir}"; fi
 curl --fail --location --progress-bar --output "${exe}.zip" "${deno_uri}"
 unzip -d "${bin_dir}" -o "${exe}.zip"
 chmod +x "${exe}"
 rm "${exe}.zip"
 echo "Deno was installed successfully to: \"${exe}\""

 # 3. patch the deno binary to use the termux-compatible libc shared libraries
 patchelf --set-rpath "${HOME}/../usr/glibc/lib" --set-interpreter "${HOME}/../usr/glibc/lib/ld-linux-aarch64.so.1" "${exe}"

 # 4. adding shell configurations to your `~/.bashrc`
 bashrc_file="${HOME}/.bashrc"
 touch "${bashrc_file}"
 echo "export DENO_INSTALL=\"${deno_install}\"" >> "${bashrc_file}"
 echo "export PATH=\"\${PATH}:${bin_dir}\"" >> "${bashrc_file}"
 echo "unset LD_PRELOAD" >> "${bashrc_file}" # I think this disables dynamic library preloading, which is necessary for any patched binaries

 # 5. apply variable declarations and configurations to the current session as well
 export DENO_INSTALL="${deno_install}"
 export PATH="${PATH}:${bin_dir}"
 unset LD_PRELOAD
	# NOTE: to run this script remotely (without copy and pasting) simply execute:
	# curl -fsSL "https://gist.githubusercontent.com/omar-azmi/9510958fe24a7374856ccc75217330d5/raw/setup_deno_on_termux.sh" \| sh

	# the following shell script will install the deno javascript runtime to your termux environment on android.
	# after that, it will patch the deno binary to use android/termux compatible libc shared libraries (which we will download beforehand)
	# finally, we will append the path to the deno library onto the PATH environment variable in your local `./.bachrc` file, so that `deno` will be available as a command on every terminal session.
	# the proceedure for making deno compatible with termux was gathered from the following resources:
	# - "https://github.com/denoland/deno/issues/19759"
	# - "https://gist.github.com/CodeIter/ccdcc840e432288ef1e01cc15d66c048"

	# 1. install pre-requisites:
	# - `glibc-repo` and `glibc` provide the termux-compatible shared libraries for libc (a dynamic dependency of deno)
	# - `patchelf` lets us patch the deno binary to use an alternate location for its dynamic dependencies on libc
	pkg install --yes glibc-repo
	pkg install --yes glibc
	pkg install --yes patchelf

	# 2. download and install deno.
	# we don't use the official script because it immediately executes deno to carry out additional tasks.
	# but we cannot run the deno binary here until it has been patched.
	target="aarch64-unknown-linux-gnu"
	deno_version="$(curl -s https://dl.deno.land/release-latest.txt)"
	deno_uri="https://dl.deno.land/release/${deno_version}/deno-${target}.zip"
	deno_install="${DENO_INSTALL:-$HOME/.deno}"
	bin_dir="${deno_install}/bin"
	exe="${bin_dir}/deno"

	if [ ! -d "${bin_dir}" ]; then mkdir -p "${bin_dir}"; fi
	curl --fail --location --progress-bar --output "${exe}.zip" "${deno_uri}"
	unzip -d "${bin_dir}" -o "${exe}.zip"
	chmod +x "${exe}"
	rm "${exe}.zip"
	echo "Deno was installed successfully to: \"${exe}\""

	# 3. patch the deno binary to use the termux-compatible libc shared libraries
	patchelf --set-rpath "${HOME}/../usr/glibc/lib" --set-interpreter "${HOME}/../usr/glibc/lib/ld-linux-aarch64.so.1" "${exe}"

	# 4. adding shell configurations to your `~/.bashrc`
	bashrc_file="${HOME}/.bashrc"
	touch "${bashrc_file}"
	echo "export DENO_INSTALL=\"${deno_install}\"" >> "${bashrc_file}"
	echo "export PATH=\"\${PATH}:${bin_dir}\"" >> "${bashrc_file}"
	echo "unset LD_PRELOAD" >> "${bashrc_file}" # I think this disables dynamic library preloading, which is necessary for any patched binaries

	# 5. apply variable declarations and configurations to the current session as well
	export DENO_INSTALL="${deno_install}"
	export PATH="${PATH}:${bin_dir}"
	unset LD_PRELOAD
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