diff --git a/client/Dockerfiles/dev-tools/docker-compose.yml.dev-tools.in b/client/Dockerfiles/dev-tools/docker-compose.yml.dev-tools.in
index 74ef847..7199bfd 100644
--- a/client/Dockerfiles/dev-tools/docker-compose.yml.dev-tools.in
+++ b/client/Dockerfiles/dev-tools/docker-compose.yml.dev-tools.in
@@ -32,8 +32,8 @@ services:
       - ${DOCKER_FINANCE_CLIENT_REPO}/container:${DOCKER_FINANCE_CLIENT_REPO}/container
       - /etc/localtime:/etc/localtime:ro
     environment:
+      - DOCKER_FINANCE_VERSION=@DOCKER_FINANCE_VERSION@
       - DOCKER_FINANCE_CLIENT_REPO=${DOCKER_FINANCE_CLIENT_REPO}
-      - DOCKER_FINANCE_VERSION=${DOCKER_FINANCE_VERSION}
       - GID=${DOCKER_FINANCE_GID}
       - UID=${DOCKER_FINANCE_UID}
     deploy:
diff --git a/client/Dockerfiles/finance/docker-compose.yml.archlinux.in b/client/Dockerfiles/finance/docker-compose.yml.archlinux.in
index ef70c86..7049de7 100644
--- a/client/Dockerfiles/finance/docker-compose.yml.archlinux.in
+++ b/client/Dockerfiles/finance/docker-compose.yml.archlinux.in
@@ -33,6 +33,7 @@ services:
       # NOTE: although TZ can be used within the container, this *should* be more dynamic
       - /etc/localtime:/etc/localtime:ro
     environment:
+      - DOCKER_FINANCE_VERSION=@DOCKER_FINANCE_VERSION@
       - DOCKER_FINANCE_CONTAINER_CMD=${DOCKER_FINANCE_CONTAINER_CMD}
       - DOCKER_FINANCE_CONTAINER_CONF=${DOCKER_FINANCE_CONTAINER_CONF}
       - DOCKER_FINANCE_CONTAINER_EDITOR=${DOCKER_FINANCE_CONTAINER_EDITOR}
diff --git a/client/Dockerfiles/finance/docker-compose.yml.ubuntu.in b/client/Dockerfiles/finance/docker-compose.yml.ubuntu.in
index 572ffea..0c41df8 100644
--- a/client/Dockerfiles/finance/docker-compose.yml.ubuntu.in
+++ b/client/Dockerfiles/finance/docker-compose.yml.ubuntu.in
@@ -33,6 +33,7 @@ services:
       # NOTE: although TZ can be used within the container, this should be more dynamic
       - /etc/localtime:/etc/localtime:ro
     environment:
+      - DOCKER_FINANCE_VERSION=@DOCKER_FINANCE_VERSION@
       - DOCKER_FINANCE_CONTAINER_CMD=${DOCKER_FINANCE_CONTAINER_CMD}
       - DOCKER_FINANCE_CONTAINER_CONF=${DOCKER_FINANCE_CONTAINER_CONF}
       - DOCKER_FINANCE_CONTAINER_EDITOR=${DOCKER_FINANCE_CONTAINER_EDITOR}
diff --git a/client/docker-finance.d/client/env/gen.bash b/client/docker-finance.d/client/env/gen.bash
index 7c7abfc..a54f16d 100644
--- a/client/docker-finance.d/client/env/gen.bash
+++ b/client/docker-finance.d/client/env/gen.bash
@@ -24,16 +24,17 @@
 # Different platforms require slightly different environment
 [ -z "$global_platform" ] && exit 1
 
+# Version is internally set on-the-fly
+[ -z "$global_client_version" ] && exit 1
+
+export DOCKER_FINANCE_VERSION="$global_client_version"
+
 # Developer related
 
 if [ -z "$DOCKER_FINANCE_DEBUG" ]; then
   export DOCKER_FINANCE_DEBUG=false
 fi
 
-if [ -z "$DOCKER_FINANCE_VERSION" ]; then
-  export DOCKER_FINANCE_VERSION="1.0.0"
-fi
-
 # Allows transparent r/w of mounted volumes
 
 if [ -z "$DOCKER_FINANCE_UID" ]; then
diff --git a/client/docker-finance.d/container/fetch/fetch.yaml.in b/client/docker-finance.d/container/fetch/fetch.yaml.in
index 69562d3..1844361 100644
--- a/client/docker-finance.d/container/fetch/fetch.yaml.in
+++ b/client/docker-finance.d/container/fetch/fetch.yaml.in
@@ -15,7 +15,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-# docker-finance @DOCKER_FINANCE_VERSION@
+#
+# Configuration for `fetch` command
+#
 
 # Documentation:
 #
diff --git a/client/docker-finance.yaml b/client/docker-finance.yaml
index 051f22d..411e2de 100644
--- a/client/docker-finance.yaml
+++ b/client/docker-finance.yaml
@@ -16,12 +16,11 @@
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 #
-# docker-finance client/container manifest
+# `docker-finance` manifest
 #
 
-# `docker-finance` release version
-# TODO: internal refactor to pull from here
-version: "1.0.0"
+# Release version (tag format)
+version: "v1.0.0-beta"
 
 # Container dependencies (used by `version` command)
 # NOTE: this must stay inline with Dockerfiles
diff --git a/client/src/docker/lib/internal/lib_docker.bash b/client/src/docker/lib/internal/lib_docker.bash
index 6ec1559..e852fa0 100644
--- a/client/src/docker/lib/internal/lib_docker.bash
+++ b/client/src/docker/lib/internal/lib_docker.bash
@@ -49,34 +49,26 @@ fi
 # Remaining "constructor" implementation
 function lib_docker::__docker()
 {
-  # Docker-related files
-  [ -z "$DOCKER_FINANCE_CLIENT_REPO" ] && lib_utils::die_fatal
-  declare -g global_repo_dockerfiles="${DOCKER_FINANCE_CLIENT_REPO}/client/Dockerfiles/"
+  # Inherited from caller
+  [ -z "$global_container" ] && lib_utils::die_fatal
+  [ -z "$global_image" ] && lib_utils::die_fatal
+  [ -z "$global_network" ] && lib_utils::die_fatal
+  [ -z "$global_platform" ] && lib_utils::die_fatal
+  [ -z "$global_tag" ] && lib_utils::die_fatal
 
-  case "$global_platform" in
-    archlinux | ubuntu)
-      global_repo_dockerfiles+="finance"
-      ;;
-    dev-tools)
-      global_repo_dockerfiles+="dev-tools"
-      ;;
-    *)
-      lib_utils::die_fatal "platform was not previously checked"
-      ;;
-  esac
+  # Inherited from caller (via lib_gen)
+  [ -z "$global_client_version" ] && lib_utils::die_fatal
+  [ -z "$global_repo_dockerfiles" ] && lib_utils::die_fatal
 
   #
   # Generate docker-compose.yml
   #
 
-  [ -z "$global_env_file" ] && lib_utils::die_fatal
-  [ -z "$global_shell_file" ] && lib_utils::die_fatal
-  [ -z "$global_repo_dockerfiles" ] && lib_utils::die_fatal
-
   local _path="${global_repo_dockerfiles}/docker-compose.yml"
   lib_utils::print_debug "Generating '${_path}'"
 
   sed \
+    -e "s|@DOCKER_FINANCE_VERSION@|${global_client_version}|g" \
     -e "s|@DOCKER_FINANCE_IMAGE@|${global_image}:${global_tag}|g" \
     -e "s|@DOCKER_FINANCE_CONTAINER@|${global_container}|g" \
     -e "s|@DOCKER_FINANCE_NETWORK@|${global_network}|g" \
@@ -643,10 +635,9 @@ function lib_docker::__version()
 {
   lib_docker::__parse_args_version "$@"
 
-  [ -z "${DOCKER_FINANCE_VERSION}" ] && lib_utils::die_fatal
-  [ -z "${DOCKER_FINANCE_CLIENT_REPO}" ] && lib_utils::die_fatal
-
   [ -z "$global_platform" ] && lib_utils::die_fatal
+  [ -z "$global_platform_image" ] && lib_utils::die_fatal
+
   [ -z "${global_arg_type[*]}" ] && lib_utils::die_fatal
 
   for _type in "${global_arg_type[@]}"; do
@@ -673,22 +664,20 @@ function lib_docker::__version()
 
       container)
         # Feed dependency manifest (client is not bind-mounted for security reasons)
+        [ -z "$global_repo_manifest" ] && lib_utils::die_fatal
         local _manifest
-        _manifest="$(<${DOCKER_FINANCE_CLIENT_REPO}/client/docker-finance.yaml)"
+        _manifest="$(<$global_repo_manifest)"
 
         # NOTE: uses variable "callback"
         case "$global_platform" in
           archlinux)
             _platform="$global_platform"
-            _image="finance"
+            _image="$global_platform_image"
             _pkg="pacman -Q \$_package"
             ;;
           ubuntu | dev-tools)
-            if [[ "$global_platform" =~ ^ubuntu$|^dev-tools$ ]]; then
-              _platform="ubuntu"
-              _image="finance"
-              [[ "$global_platform" == "dev-tools" ]] && _image="dev-tools"
-            fi
+            _platform="ubuntu" # NOTE: current dev-tools is treated as an ubuntu-based image
+            _image="$global_platform_image"
             _pkg="dpkg -s \$_package | grep -E \"(^Package:|^Version:)\" | cut -d' ' -f2 | paste -s | awk '{print \$1 \" \" \$2}'"
             ;;
           *)
@@ -714,6 +703,9 @@ function lib_docker::__version()
         ;;
 
       short)
+        [ -z "$DOCKER_FINANCE_CLIENT_REPO" ] && lib_utils::die_fatal
+        [ -z "$DOCKER_FINANCE_VERSION" ] && lib_utils::die_fatal
+
         local _hash
         if pushd "$DOCKER_FINANCE_CLIENT_REPO" 1>/dev/null; then
           _hash="$(git log --pretty='format:%h' -n 1)"
@@ -724,7 +716,7 @@ function lib_docker::__version()
 
         # TODO: add build type
         echo
-        echo -e "docker-finance v${DOCKER_FINANCE_VERSION} | commit: $_hash | build: $global_platform"
+        echo -e "docker-finance $DOCKER_FINANCE_VERSION | commit: $_hash | platform: $global_platform | image: $global_platform_image"
         ;;
 
       *)
diff --git a/client/src/docker/lib/internal/lib_gen.bash b/client/src/docker/lib/internal/lib_gen.bash
index aedb759..a09b969 100644
--- a/client/src/docker/lib/internal/lib_gen.bash
+++ b/client/src/docker/lib/internal/lib_gen.bash
@@ -53,11 +53,22 @@ fi
 #
 # Sets client-side environment with defaults or use existing environment
 #
+# NOTE: some bootstrapped defaults are ignored by environment file (as seen below)
+#
 
+# TODO: further refactoring; make clearer transient env vars versus persistent env vars
 function lib_gen::gen()
 {
   lib_utils::print_debug "Constructing environment"
 
+  # Generate `docker-finance` version
+  global_repo_manifest="$(dirname "$(realpath -s $0)")/docker-finance.yaml"
+  declare -gr global_repo_manifest
+
+  global_client_version="$(grep '^version: ' $global_repo_manifest | sed -e 's/version: "//' -e 's/"//g')"
+  # shellcheck disable=SC2034  # used during env gen
+  declare -gr global_client_version
+
   # Repository-provided (not user-defined) default environment
   global_repo_conf_dir="$(dirname "$(realpath -s $0)")/docker-finance.d"
   declare -gr global_repo_conf_dir
@@ -67,22 +78,34 @@ function lib_gen::gen()
   [ ! -f "$global_repo_env_file" ] \
     && lib_utils::die_fatal "Missing environment defaults! ($global_repo_env_file)"
 
-  # Custom Dockerfile (to be appended to final Dockerfile)
-  local _image
+  #
+  # Dockerfiles
+  #
+
+  # Set image type
+  [ -z "$global_platform" ] && lib_utils::die_fatal
   case "$global_platform" in
     archlinux | ubuntu)
-      _image+="finance"
+      global_platform_image="finance"
       ;;
     dev-tools)
-      _image+="dev-tools"
+      global_platform_image="dev-tools"
       ;;
     *)
       lib_utils::die_fatal "unsupported platform"
       ;;
   esac
-  declare -gr global_repo_dockerfile="${global_repo_conf_dir}/client/Dockerfiles/${_image}/Dockerfile.${global_platform}.in"
-  [ ! -f "$global_repo_dockerfile" ] \
-    && lib_utils::die_fatal "Missing environment defaults! ($global_repo_dockerfile)"
+  declare -gr global_platform_image
+
+  # Base location of Docker-related files (.in and final out files)
+  global_repo_dockerfiles="$(dirname "$(realpath -s $0)")/Dockerfiles/${global_platform_image}"
+  # shellcheck disable=SC2034  # used in lib_docker
+  declare -gr global_repo_dockerfiles
+
+  # Base custom end-user .in Dockerfile (to be appended to final Dockerfile after installation)
+  declare -gr global_repo_custom_dockerfile="${global_repo_conf_dir}/client/Dockerfiles/${global_platform_image}/Dockerfile.${global_platform}.in"
+  [ ! -f "$global_repo_custom_dockerfile" ] \
+    && lib_utils::die_fatal "Missing default custom Dockerfile '${global_repo_custom_dockerfile}'"
 
   #
   # If empty environment, bootstrap with defaults
@@ -106,9 +129,7 @@ function lib_gen::gen()
   # Reset environment with user-provided (user-defined) existing file (if available)
   #
 
-  [ -z "$global_platform" ] && lib_utils::die_fatal
   [ -z "$global_tag" ] && lib_utils::die_fatal
-
   local -r _env_dir="${DOCKER_FINANCE_CLIENT_CONF}/client/$(uname -s)-$(uname -m)/${global_platform}/${global_tag}/env"
   local -r _env_file="${_env_dir}/${global_conf_filename}"
 
@@ -124,6 +145,7 @@ function lib_gen::gen()
       lib_gen::__write_env "$_env_file"
     fi
   else
+    [ -z "$global_command" ] && lib_utils::die_fatal
     [ -z "$global_basename" ] && lib_utils::die_fatal
 
     if [[ -z "$global_command" || "$global_command" != "gen" ]]; then
@@ -193,9 +215,7 @@ function lib_gen::__set_client_globals()
 
 function lib_gen::__read_env()
 {
-  lib_utils::print_debug "Get/Set environment"
-
-  # Unset
+  # Reset environment
   unset "$(printenv | grep -Eo "^DOCKER_FINANCE[^=]+")"
 
   # Set, if a script that generates env
@@ -207,8 +227,16 @@ function lib_gen::__read_env()
 
   # Set, if env file format (docker / bash)
   while read _line; do
-    export "${_line?}" # SC2163
-    lib_utils::print_debug "$_line"
+    # Ignore comments
+    if [[ ! "$_line" =~ ^# ]]; then
+      # Don't allow manipulating version via file
+      if [[ "$_line" =~ ^DOCKER_FINANCE_VERSION ]]; then
+        continue
+      fi
+      # Export valid line
+      export "${_line?}" # SC2163
+      lib_utils::print_debug "$_line"
+    fi
   done <"$1"
 }
 
@@ -220,7 +248,8 @@ function lib_gen::__write_env()
 {
   lib_utils::print_debug "Writing environment"
 
-  printenv | grep "DOCKER_FINANCE" | sort >"$1"
+  unset DOCKER_FINANCE_VERSION # Must be generated internally
+  printenv | grep -E "DOCKER_FINANCE" | sort >"$1"
 }
 
 #
@@ -303,12 +332,10 @@ function lib_gen::__gen_client()
     lib_utils::print_custom "    \e[32m│\e[0m\n"
     lib_utils::print_custom "    \e[32m├─\e[34;1m Generating new custom (optional) Dockerfile\e[0m\n"
 
-    if [ ! -f "$global_custom_dockerfile" ]; then
-      lib_utils::print_debug "$global_repo_dockerfile"
-      lib_utils::print_debug "$global_custom_dockerfile"
+    lib_utils::print_debug "$global_repo_custom_dockerfile"
+    lib_utils::print_debug "$global_custom_dockerfile"
 
-      cp -a "$global_repo_dockerfile" "$global_custom_dockerfile"
-    fi
+    cp -a "$global_repo_custom_dockerfile" "$global_custom_dockerfile"
   fi
 
   lib_utils::print_custom "    \e[32m│  └─\e[34m Edit (new) custom Dockerfile now? [Y/n] \e[0m"
@@ -477,14 +504,14 @@ function lib_gen::__gen_shell()
 function lib_gen::__gen_shell_write()
 {
   [ -z "$global_repo_conf_dir" ] && lib_utils::die_fatal
-  [ -z "$DOCKER_FINANCE_VERSION" ] && lib_utils::die_fatal
-
   lib_utils::print_debug "global_repo_conf_dir=${global_repo_conf_dir}"
-  lib_utils::print_debug "DOCKER_FINANCE_VERSION=${DOCKER_FINANCE_VERSION}"
+
+  [ -z "$global_client_version" ] && lib_utils::die_fatal
+  lib_utils::print_debug "global_client_version=${global_client_version}"
 
   sed \
     -e "s:@DOCKER_FINANCE_SUBPROFILE_SOURCE@:${_source}:g" \
-    -e "s:@DOCKER_FINANCE_VERSION@:${DOCKER_FINANCE_VERSION}:g" \
+    -e "s:@DOCKER_FINANCE_VERSION@:${global_client_version}:g" \
     "${global_repo_conf_dir}/container/shell/superscript.bash.in" >"$_file"
 }
 
@@ -528,10 +555,14 @@ function lib_gen::__gen_hledger_write()
   local _file="$1"
   [ -z "$_file" ] && lib_utils::die_fatal
 
-  [ -z "$DOCKER_FINANCE_VERSION" ] && lib_utils::die_fatal
   [ -z "$global_repo_conf_dir" ] && lib_utils::die_fatal
+  lib_utils::print_debug "global_repo_conf_dir=${global_repo_conf_dir}"
+
+  [ -z "$global_client_version" ] && lib_utils::die_fatal
+  lib_utils::print_debug "global_client_version=${global_client_version}"
+
   sed \
-    -e "s:@DOCKER_FINANCE_VERSION@:${DOCKER_FINANCE_VERSION}:g" \
+    -e "s:@DOCKER_FINANCE_VERSION@:${global_client_version}:g" \
     "${global_repo_conf_dir}/container/hledger/hledger.conf.in" >"$_file"
 }
 
@@ -618,7 +649,7 @@ function lib_gen::__gen_flow_shell_write()
   sed \
     -e "s:@DOCKER_FINANCE_CONTAINER_CMD@:${DOCKER_FINANCE_CONTAINER_CMD}:g" \
     -e "s:@DOCKER_FINANCE_CONTAINER_REPO@:${DOCKER_FINANCE_CONTAINER_REPO}:g" \
-    -e "s:@DOCKER_FINANCE_VERSION@:${DOCKER_FINANCE_VERSION}:g" \
+    -e "s:@DOCKER_FINANCE_VERSION@:${global_client_version}:g" \
     -e "s:@DOCKER_FINANCE_PROFILE@:${_profile}:g" \
     -e "s:@DOCKER_FINANCE_SUBPROFILE@:${_subprofile}:g" \
     "${global_repo_conf_dir}/container/shell/subprofile.bash.in" >"$_file"
@@ -659,16 +690,16 @@ function lib_gen::__gen_flow_fetch()
 
 function lib_gen::__gen_flow_fetch_write()
 {
-  [ -z "$DOCKER_FINANCE_VERSION" ] && lib_utils::die_fatal
-
   [ -z "$_profile" ] && lib_utils::die_fatal
   [ -z "$_subprofile" ] && lib_utils::die_fatal
 
   [ -z "$global_repo_conf_dir" ] && lib_utils::die_fatal
   [ -z "$_file" ] && lib_utils::die_fatal
 
+  [ -z "$global_client_version" ] && lib_utils::die_fatal
+
   sed \
-    -e "s:@DOCKER_FINANCE_VERSION@:${DOCKER_FINANCE_VERSION}:g" \
+    -e "s:@DOCKER_FINANCE_VERSION@:${global_client_version}:g" \
     -e "s:@DOCKER_FINANCE_PROFILE@:${_profile}:g" \
     -e "s:@DOCKER_FINANCE_SUBPROFILE@:${_subprofile}:g" \
     "${global_repo_conf_dir}/container/fetch/fetch.yaml.in" >"$_file"
@@ -712,7 +743,7 @@ function lib_gen::__gen_flow_meta_write()
   # Deletes default comments or else ROOT meta sample won't work out-of-the-box
   sed \
     -e "/\/\/\\!/d" \
-    -e "s:@DOCKER_FINANCE_VERSION@:${DOCKER_FINANCE_VERSION}:g" \
+    -e "s:@DOCKER_FINANCE_VERSION@:${global_client_version}:g" \
     "${global_repo_conf_dir}/container/meta/meta.csv.in" >"$_file"
 }