diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..4ceed0f
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,55 @@
+# Python CircleCI 2.0 configuration file
+#
+# Check https://circleci.com/docs/2.0/language-python/ for more details
+#
+version: 2
+jobs:
+  build:
+    docker:
+      # specify the version you desire here
+      # use `-browsers` prefix for selenium tests, e.g. `3.6.1-browsers`
+      - image: circleci/python:3.6.1
+
+      # Specify service dependencies here if necessary
+      # CircleCI maintains a library of pre-built images
+      # documented at https://circleci.com/docs/2.0/circleci-images/
+      # - image: circleci/postgres:9.4
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "requirements.txt" }}
+            # fallback to using the latest cache if no exact match is found
+            - v1-dependencies-
+
+      - run:
+          name: install dependencies
+          command: |
+            python3 -m venv venv
+            . venv/bin/activate
+            pip install -r requirements.txt
+
+      - save_cache:
+          paths:
+            - ./venv
+          key: v1-dependencies-{{ checksum "requirements.txt" }}
+
+      # run tests!
+      # this example uses Django's built-in test-runner
+      # other common Python testing frameworks include pytest and nose
+      # https://pytest.org
+      # https://nose.readthedocs.io
+      - run:
+          name: run tests
+          command: |
+            . venv/bin/activate
+            python manage.py test
+
+      - store_artifacts:
+          path: test-reports
+          destination: test-reports
diff --git a/Bakefile b/Bakefile
index 548ded7..6bc6931 100644
--- a/Bakefile
+++ b/Bakefile
@@ -1,17 +1,30 @@
-task: @confirm install-deps
-    echo "hi, $1"
 
-install-deps: @skip:key=./Pipfile.lock system-deps
+install: install/system install/python
+install/python: install/system @skip:key=./Pipfile.lock
     pipenv install
 
-system-deps: install-jq
-    set -ex
+install/system:
+    lazy-brew jq docker-compose
 
-    brew install pipenv
+docker/bash: docker/build install/system
+    docker-compose run --entrypoint=bash bake
+docker/release: docker/build install/system
+    docker-compose push
+docker/build: install/system
+    docker-compose build
 
-    if ! brew info --installed --json | jq 'map(.name) | index( "pipenv" )'; then
-        brew install pipenv
+lazy-brew() {
+    set -e
+    # Install jq if it's not available.
+
+    if ! which jq > /dev/null; then
+        set -ex && brew install jq > /dev/null
     fi
 
-install-jq:
-    brew install jq
+    # Install requested packages, if they aren't installed.
+    for PACKAGE in "$@"; do
+        if ! brew info --installed --json | jq 'map(.name) | index( "$PACKAGE" )' > /dev/null; then
+            set -ex && brew install "$PACKAGE" > /dev/null
+        fi
+    done
+}
diff --git a/bake/bakefile.py b/bake/bakefile.py
index a753073..7abb659 100644
--- a/bake/bakefile.py
+++ b/bake/bakefile.py
@@ -263,68 +263,69 @@ class TaskScript(BaseAction):
 
         return line
 
-    def prepare_init(self, sources=None, insert_source=None):
-
-        tf = mkstemp(suffix=".sh", prefix="bashf-")[1]
+    def gen_source(
+        self,
+        sources=None,
+        insert_source=None,
+        remove_comments=False,
+        include_shebang=True,
+    ):
 
         stdlib_path = os.path.join(os.path.dirname(__file__), "scripts", "stdlib.sh")
         with open(stdlib_path, "r") as f:
             stdlib = f.read()
 
+        _sources = [stdlib, self.bashfile.funcs_source, self.bashfile.root_source]
+
         if sources is None:
-            sources = (stdlib, self.bashfile.funcs_source, self.bashfile.root_source)
+            sources = []
 
-        with open(tf, "w") as f:
-            if insert_source:
-                f.write(f"#!/usr/bin/env bash\nsource {insert_source}\n")
-            for source in sources:
-                f.write(source)
-                f.write("\n\n")
+        _sources.extend(sources)
+        sources = _sources
 
-        # Mark the temporary file as executable.
-        st = os.stat(tf)
-        os.chmod(tf, st.st_mode | stat.S_IEXEC)
+        source = "\n".join(sources)
+        first_natural_line = source.split("\n")[0]
 
-        return tf
+        if Bakefile._is_shebang_line(first_natural_line) and include_shebang:
+            yield first_natural_line
+
+        if insert_source:
+            yield f". <(bake --source {insert_source})"
+
+        for sourceline in source.split("\n"):
+            if not (
+                remove_comments
+                and Bakefile._is_comment_line(sourceline, exclude_shebang=False)
+            ):
+                if sourceline:
+                    yield sourceline
+
+        yield "\n"
 
     def execute(
         self, *, blocking=False, debug=False, interactive=False, silent=False, **kwargs
     ):
 
-        init_tf = self.prepare_init()
-        if self.bashfile._is_shebang_line(self.source_lines[0]):
-            script_tf = self.prepare_init(sources=[self.source])
-            if self.source_lines[0] == "#!/usr/bin/env bash":
-                with open(script_tf, "r") as f:
-                    lines = f.readlines()
-                lines.insert(1, f"source {init_tf}")
-                with open(script_tf, "w") as f:
-                    f.write("\n".join(lines))
-        else:
-            script_tf = self.prepare_init(sources=[self.source], insert_source=init_tf)
-
         args = " ".join([shlex_quote(a) for a in self.bashfile.args])
 
-        if interactive:
-            script = f"source {shlex_quote(init_tf)}; {shlex_quote(script_tf)} {args}"
-        else:
-            script = f"source {shlex_quote(init_tf)}; {shlex_quote(script_tf)} {args} 2>&1 | bake:indent"
-
-        cmd = f"bash -c {shlex_quote(script)}"
+        script_suffix = (
+            "2>&1  | sed >&2 's/^/ |  /' && exit \"${PIPESTATUS[0]}\""
+            if not (interactive or silent)
+            else ""
+        )
+        script_debug = "--verbose -x" if debug else ""
+        # --init-file <(bake --source __init__)
+        # --init-file <(bake --source __init__)
+        script = f"bash --noprofile {script_debug} <(bake --source {self.name})  {args} {script_suffix}"
 
         if debug:
-            click.echo(f" $ {cmd}", err=True)
+            click.echo(f" {click.style('$', fg='green')} {script}", err=True)
 
-        c = os.system(cmd)
-
-        if not debug:
-            os.remove(script_tf)
-            os.remove(init_tf)
-
-        return c
+        bash = Bash()
+        return bash.command(script, quote=False)
 
     def shellcheck(self, *, silent=False, debug=False, **kwargs):
-        tf = self.prepare_init(sources=[self.source])
+        tf = self.gen_source(sources=[self.source])
         cmd = f"shellcheck {shlex_quote(tf)} --external-sources --format=json"
 
         c = delegator.run(cmd)
@@ -345,13 +346,13 @@ class TaskScript(BaseAction):
         return self.bashfile.chunks[self._chunk_index]
 
     def _iter_source(self):
-        try:
-            has_shebang = self._transform_line(self.chunk[1]).startswith("#!")
-        except IndexError:
-            has_shebang = False
+        # try:
+        #     has_shebang = self._transform_line(self.chunk[1]).startswith("#!")
+        # except IndexError:
+        #     has_shebang = False
 
-        if not has_shebang:
-            yield "#!/usr/bin/env bash"
+        # if not has_shebang:
+        #     yield "#!/usr/bin/env bash"
 
         for line in self.chunk[1:]:
             line = self._transform_line(line)
@@ -379,6 +380,7 @@ class Bakefile:
 
         os.environ["BAKEFILE_PATH"] = self.path
         os.environ["BAKE_SKIP_DONE"] = "1"
+        os.environ["PYTHONUNBUFFERED"] = "1"
 
         self.chunks
         self._tasks = None
@@ -489,13 +491,20 @@ class Bakefile:
                 line = line.replace("\t", " " * 4)
                 return bool(len(line[:4].strip()))
 
+    def _is_task_line(self, line):
+        if line.startswith(INDENT_STYLES[0]) or line.startswith(INDENT_STYLES[1]):
+            return True
+
     @staticmethod
     def _is_shebang_line(line):
         return line.startswith("#!")
 
     @staticmethod
-    def _is_comment_line(line):
-        return line.startswith("#")
+    def _is_comment_line(line, *, exclude_shebang=True):
+        if exclude_shebang:
+            return line.strip().startswith("#") and not line.startswith("#!")
+        else:
+            return line.strip().startswith("#")
 
     @staticmethod
     def _comment_line(line):
@@ -523,6 +532,9 @@ class Bakefile:
                 if self._is_declaration_line(line):
                     task_active = True
                 else:
+                    if not self._is_task_line(line):
+                        task_active = False
+
                     if not task_active:
                         source_lines.append(line)
 
@@ -536,10 +548,13 @@ class Bakefile:
     def funcs_source(self):
         source = []
 
-        for task in self.tasks:
-            task = self[task]
-            source.append(
-                f"task:{task.name}()" + " { " + f"bake --silent {task.name} $@;" + "}"
-            )
+        # for task in self.tasks:
+        #     task = self[task]
+        #     source.append(
+        #         f"{task.name.replace('/', '_')}()"
+        #         + " { "
+        #         + f"bake --silent {task.name} $@"
+        #         + "}"
+        #     )
 
         return "\n".join(source)
diff --git a/bake/bash.py b/bake/bash.py
index ca2daed..deef365 100644
--- a/bake/bash.py
+++ b/bake/bash.py
@@ -1,15 +1,15 @@
 """
 bash.py module
 """
-import re
-import time
 import json as json_lib
-import os
-import stat
-from tempfile import mkstemp
+import re
+import sys
+import time
 from shlex import quote as shlex_quote
-
+import subprocess
+import os
 import delegator
+import click
 
 DELEGATOR_MINIMUM_TIMEOUT = 60 * 60 * 60 * 8
 WHICH_BASH = "bash"
@@ -21,35 +21,86 @@ if delegator.TIMEOUT < DELEGATOR_MINIMUM_TIMEOUT:
 __all__ = ["run", "Bash"]
 
 
-class BashProcess:
-    """Bash process object."""
+def system_which(command, mult=False):
+    """Emulates the system's which. Returns None if not found."""
+    _which = "which -a" if not os.name == "nt" else "where"
+    # os.environ = {
+    #     vistir.compat.fs_str(k): vistir.compat.fs_str(val)
+    #     for k, val in os.environ.items()
+    # }
+    result = None
+    try:
+        c = delegator.run("{0} {1}".format(_which, command))
+        try:
+            # Which Not found…
+            if c.return_code == 127:
+                click.echo(
+                    "{}: the {} system utility is required for bake to find bash properly."
+                    "\n  Please install it.".format(
+                        click.style("Warning", bold=True), click.style(_which, fg="red")
+                    ),
+                    err=True,
+                )
+            assert c.return_code == 0
+        except AssertionError:
+            result = None
+    except TypeError:
+        if not result:
+            result = None
+    else:
+        if not result:
+            result = next(iter([c.out, c.err]), "").split("\n")
+            result = next(iter(result)) if not mult else result
+            return result
+        if not result:
+            result = None
+    result = [result] if mult else result
+    return result
 
-    def __init__(self, args, parent: "Bash", blocking: bool = True) -> None:
-        """constructor"""
+
+class BashProcess:
+    """bash process object"""
+
+    def __init__(
+        self,
+        args,
+        parent: "bash",
+        interactive: bool = False,
+        blocking: bool = True,
+        **kwargs,
+    ) -> None:
         # Environ inherents from parent.
 
         # Remember passed-in arguments.
         self.parent = parent
         self.args = args
-
-        # Run the subprocess.
-        args = " ".join(args)
+        self._return_code = None
         self.start_time = time.time()
-        self.sub = delegator.run(
-            f"{self.parent.path} {args}", env=self.parent.environ, block=blocking
+        self.elapsed_time = None
+        self.sub = None
+
+        cmd = [system_which("bash"), *args]
+
+        std_out = sys.stdout if interactive else subprocess.PIPE
+        std_in = sys.stdin if interactive else subprocess.PIPE
+
+        self.sub = subprocess.Popen(
+            cmd, stdout=std_out, stdin=std_in, universal_newlines=True, **kwargs
         )
         if blocking:
-            self.elapsed_time = time.time() - self.start_time
+            self._return_code = self.sub.wait()
+
+        self.elapsed_time = time.time() - self.start_time
 
     @property
     def output(self) -> str:
         """stdout of the running process"""
-        return str(self.sub.out)
+        return str(self.sub.stdout)
 
     @property
     def err(self) -> str:
         """stderr of the running process"""
-        return str(self.sub.err)
+        return str(self.sub.stderr)
 
     @property
     def json(self) -> dict:
@@ -59,12 +110,12 @@ class BashProcess:
     @property
     def ok(self) -> bool:
         """if the process exited with a 0 exit code"""
-        return self.sub.ok
+        return self.return_code == 0
 
     @property
     def return_code(self) -> int:
         """the exit code of the process"""
-        return self.sub.return_code
+        return self._return_code or self.sub.returncode
 
     @property
     def pid(self) -> int:
@@ -73,23 +124,18 @@ class BashProcess:
 
     def __repr__(self) -> str:
         """string representation of the bash process"""
-        return (
-            f"<BashProcess pid={self.sub.pid!r} return_code={self.sub.return_code!r}>"
-        )
+        return f"<BashProcess pid={self.sub.pid!r} return_code={self.return_code!r}>"
 
 
 class Bash:
-    """An instance of Bash."""
+    """an instance of bash"""
 
-    def __init__(self, *, path=WHICH_BASH, environ=None, interactive=False):
+    def __init__(self, *, path=WHICH_BASH, environ=None):
         """constructor"""
         self.path = path
-        self.interactive = interactive
         self.environ = environ or {}
 
-        ver_proc = self._exec("--version")
-        if not ver_proc.ok:
-            raise RuntimeError("bash is required.")
+        ver_proc = self("--version")
         self.about = ver_proc.output
 
     @property
@@ -99,39 +145,14 @@ class Bash:
         # ...GNU Bash, version 4.4.19(1)-release ... --> 4.4.19(1)-release
         return matches.group(1) if matches else "version_unknown"
 
-    def _exec(self, *args, **kwargs) -> BashProcess:
+    def __call__(self, *args) -> BashProcess:
         """execute the bash process as a child of this process"""
-        return BashProcess(parent=self, args=args, **kwargs)
+        return BashProcess(parent=self, args=args)
 
-    def command(self, script: str, debug=False, **kwargs) -> BashProcess:
+    def command(self, script: str, quote=True) -> BashProcess:
         """form up the command with shlex and execute"""
-
-        tf = mkstemp(suffix=".sh", prefix="bashf-")[1]
-
-        with open(tf, "w") as f:
-            f.write(script)
-
-        # Mark the temporary file as executable.
-        st = os.stat(tf)
-        os.chmod(tf, st.st_mode | stat.S_IEXEC)
-
-        stdlib_path = os.path.join(os.path.dirname(__file__), "scripts", "stdlib.sh")
-        # print(stdlib_path)
-
-        # cmd = f"bash -c {(script)}"
-        script = shlex_quote(f"unbuffer {tf} 2>&1 | bashf-indent")
-        cmd = f"bash --init-file {shlex_quote(stdlib_path)} -i -c {script} "
-
-        if debug:
-            print(cmd)
-
-        return_code = os.system(cmd)
-
-        if not debug:
-            # Cleanup temporary file.
-            os.remove(tf)
-
-        return return_code
+        maybe_quote = shlex_quote if quote else str
+        return self(f"-c", maybe_quote(script))
 
 
 def run(script=None, **kwargs):
diff --git a/bake/cli.py b/bake/cli.py
index 9d13e48..97e7432 100644
--- a/bake/cli.py
+++ b/bake/cli.py
@@ -1,6 +1,7 @@
 import sys
 import click
 import json
+import random
 
 from .bakefile import Bakefile, TaskFilter, NoBakefileFound
 from .clint import eng_join
@@ -20,6 +21,8 @@ SAFE_ENVIRONS = [
     "TERM",
     "VIRTUAL_ENV",
     "BAKEFILE_PATH",
+    "PYTHONUNBUFFERED",
+    "PYTHONDONTWRITEBYTECODE",
 ]
 
 
@@ -120,6 +123,7 @@ def echo_json(obj):
     hidden=False,
     help="Run shellcheck on Bakefile.",
 )
+@click.option("--source", default=False, nargs=1, hidden=True)
 @click.option(
     "--allow",
     default=False,
@@ -198,6 +202,7 @@ def entrypoint(
     interactive,
     yes,
     help,
+    source,
 ):
     """bake — the strangely familiar task–runner."""
 
@@ -205,15 +210,18 @@ def entrypoint(
         do_help(0)
 
     # Default to list behavior, when no task is provided.
-    if _json:
+    if _json or source:
         silent = True
 
+    # Allow explicitly–passed environment variables.
     SAFE_ENVIRONS.extend(allow)
 
+    # Enable list functionality, by default.
     if task == "__LIST_ALL__":
         _list = True
         task = None
 
+    # Establish the Bakefile.
     try:
         if bakefile == "__BAKEFILE__":
             bakefile = Bakefile.find(root=".", filename="Bakefile")
@@ -223,6 +231,29 @@ def entrypoint(
         click.echo(click.style("No Bakefile found!", fg="red"), err=True)
         do_help(1)
 
+    # --source (internal API)
+    if source:
+
+        def echo_generator(g):
+            for g in g:
+                click.echo(g)
+
+        if source == "__init__":
+            source = random.choice(list(bakefile.tasks.keys()))
+            source = bakefile.tasks[source].gen_source(remove_comments=True)
+        else:
+            task = bakefile.tasks[source]
+            source = task.gen_source(
+                sources=[task.source],
+                remove_comments=True,
+                insert_source="__init__",
+                include_shebang=True,
+            )
+        for source_line in source:
+            # print(source_line)
+            click.echo(source_line)
+        sys.exit(0)
+
     if not insecure:
         for key in bakefile.environ:
             if key not in SAFE_ENVIRONS:
@@ -360,18 +391,25 @@ def entrypoint(
                         + click.style(":", fg="white"),
                         err=True,
                     )
-                return_code = task.execute(
+                usually_bash = task.execute(
                     yes=yes, debug=debug, silent=silent, interactive=interactive
                 )
 
                 if not _continue:
-                    if (not return_code == 0) and (not isinstance(return_code, tuple)):
-                        click.echo(
-                            click.style(f"Task {task} failed!", fg="red"), err=True
-                        )
-                        sys.exit(return_code)
-                    if isinstance(return_code, tuple):
-                        key, value = return_code
+                    if hasattr(usually_bash, "ok"):
+
+                        if usually_bash.return_code > 0:
+                            if not silent:
+                                click.echo(
+                                    click.style(f"Task {task} failed!", fg="red"),
+                                    err=True,
+                                )
+                            sys.exit(usually_bash.return_code)
+
+                    elif isinstance(usually_bash, tuple):
+                        key, value = (
+                            usually_bash
+                        )  # But, in this instance, clearly isn't.
             else:
                 click.echo(
                     click.style(" + ", fg="green")
diff --git a/bake/scripts/stdlib.sh b/bake/scripts/stdlib.sh
index 2ab8d68..e69de29 100644
--- a/bake/scripts/stdlib.sh
+++ b/bake/scripts/stdlib.sh
@@ -1,51 +0,0 @@
-#!/usr/bin/env bash
-
-if [ "$(uname)" == Darwin ]; then
-    bake:sed() { command sed -l "$@"; }
-else
-    bake:sed() { command sed -u "$@"; }
-fi
-
-# Syntax sugar.
-bake:indent() {
-    bake:sed "s/^/   /"
-}
-
-# ---------------------
-# From: https://github.com/heroku/buildpack-stdlib/blob/master/stdlib.sh
-
-bake:step() {
-    if [[ "$*" == "-" ]]; then
-        read -r output
-    else
-        output=$*
-    fi
-    echo -e "\\e[1m\\e[36m=== $output\\e[0m"
-    unset output
-}
-
-bake:error() {
-    if [[ "$*" == "-" ]]; then
-        read -r output
-    else
-        output=$*
-    fi
-    echo -e "\\e[1m\\e[31m=!= $output\\e[0m"
-}
-
-bake:warn() {
-    if [[ "$*" == "-" ]]; then
-        read -r output
-    else
-        output=$*
-    fi
-    echo -e "\\e[1m\\e[33m=!= $output\\e[0m"
-}
-
-# bake:eng_join() {
-#     for word in ${@}; do
-#         echo $word
-#     end
-
-
-# }