Interactive Django Deployment Checklist with marimo

I love Django—it covers pretty much everything I need in a web environment. However, when it comes time to deploy a project to production, there are always a bunch of pre-deployment checks, and I can never seem to remember them all. I find myself constantly revisiting the official Django deployment checklist page.

Today I realized I don’t need all the detailed information every time—just a simple reminder list is enough. So, I built an interactive Django deployment checklist using Great Tables in marimo and hosted it on marimo.app. Now I can interact with it whenever I need a quick double-check.

marimo

NoteGive It a Sec – WASM Magic Happening

The widgets may take a few moments to load, as they rely on WebAssembly under the hood.

1. I asked AI to generate a checklist and wrapped it in a Polars DataFrame called df.
2. I created 10 switch widgets and stacked them into an array widget named status_widgets to represent the status of each checklist item.
3. I extracted the HTML representation of each widget via its _repr_html_() method and inserted it as a new "Status" column in df, which I then wrapped in a Great Tables GT object.
4. I added two source notes using GT.tab_source_note()—one to display progress, and another for a visual progress bar.
5. Finally, I gave the table a nice header with GT.tab_header() and applied some styling using GT.opt_stylize().

import marimo as mo
import polars as pl
from great_tables import GT, html, md

tasks = [
    "Set DEBUG = False",
    "Configure ALLOWED_HOSTS",
    "Set up a secret key",
    "Collect static files",
    "Apply database migrations",
    "Set up gunicorn or uWSGI",
    "Configure reverse proxy (e.g., Nginx)",
    "Secure the database",
    "Set up HTTPS (SSL)",
    "Configure logging & monitoring",
]

notes = [
    "Never deploy with DEBUG = True ⚠️",
    "Include your domain(s) or IP address 🌐",
    "Use a strong, secure key from an environment variable 🔐",
    "Run `python manage.py collectstatic` 📦",
    "Run `python manage.py migrate` 🗃️",
    "Use as a WSGI server in production 🔄",
    "Serve static/media files and forward to WSGI server 🧭",
    "Use strong credentials, disable remote root login 🛡️",
    "Use Let's Encrypt or your own certificate 🔒",
    "Track errors and app performance 📊",
]

n_row = len(tasks)
status = ["☐"] * n_row
data = {"Status": status, "Task": tasks, "Notes": notes}

df = pl.DataFrame(data)

status_widget = mo.ui.switch()
status_widgets = mo.ui.array([status_widget] * n_row)

def create_bar(
    x: float,
    max_width: int,
    height: int,
    background_color1: str,
    background_color2: str,
) -> str:
    width = round(max_width * x, 2)
    px_width = f"{width}px"
    return f"""\
    <div style="width: {max_width}px; background-color: {background_color1};">\
        <div style="height:{height}px;width:{px_width};background-color:{background_color2};"></div>\
    </div>\
    """

#| echo: false
done_count = sum(s.value for s in status_widgets)

gt = (
    GT(
        df.with_columns(
            pl.Series(
                [status._repr_html_() for status in status_widgets]
            ).alias("Status")
        )
    )
    .tab_source_note(f"{done_count} / {n_row}")
    .tab_source_note(
        html(
            create_bar(
                done_count / n_row,
                max_width=750,
                height=20,
                background_color1="lightgray",
                background_color2="#66CDAA",
            )
        )
    )
    .tab_header("✅ Django Deployment Checklist")
    .opt_stylize(color="cyan", style=4)
)
gt

Check out the full marimo code below or view it on molab.

import marimo

__generated_with = "0.14.7"
app = marimo.App(width="medium")


@app.cell
def _():
    import marimo as mo

    return (mo,)


@app.cell
def _():
    import polars as pl
    from great_tables import GT, html, md

    return GT, html, pl


@app.cell
def _(pl):
    tasks = [
        "Set DEBUG = False",
        "Configure ALLOWED_HOSTS",
        "Set up a secret key",
        "Collect static files",
        "Apply database migrations",
        "Set up gunicorn or uWSGI",
        "Configure reverse proxy (e.g., Nginx)",
        "Secure the database",
        "Set up HTTPS (SSL)",
        "Configure logging & monitoring",
    ]

    notes = [
        "Never deploy with DEBUG = True ⚠️",
        "Include your domain(s) or IP address 🌐",
        "Use a strong, secure key from an environment variable 🔐",
        "Run `python manage.py collectstatic` 📦",
        "Run `python manage.py migrate` 🗃️",
        "Use as a WSGI server in production 🔄",
        "Serve static/media files and forward to WSGI server 🧭",
        "Use strong credentials, disable remote root login 🛡️",
        "Use Let's Encrypt or your own certificate 🔒",
        "Track errors and app performance 📊",
    ]

    n_row = len(tasks)
    status = ["☐"] * n_row
    data = {"Status": status, "Task": tasks, "Notes": notes}

    df = pl.DataFrame(data)
    return df, n_row


@app.cell
def _(mo, n_row):
    status_widget = mo.ui.switch()
    status_widgets = mo.ui.array([status_widget] * n_row)
    return (status_widgets,)


@app.function
def create_bar(
    x: float,
    max_width: int,
    height: int,
    background_color1: str,
    background_color2: str,
) -> str:
    width = round(max_width * x, 2)
    px_width = f"{width}px"
    return f"""\
    <div style="width: {max_width}px; background-color: {background_color1};">\
        <div style="height:{height}px;width:{px_width};background-color:{background_color2};"></div>\
    </div>\
    """


@app.cell
def _(GT, df, html, n_row, pl, status_widgets):
    done_count = sum(s.value for s in status_widgets)

    gt = (
        GT(
            df.with_columns(
                pl.Series(
                    [status._repr_html_() for status in status_widgets]
                ).alias("Status")
            )
        )
        .tab_source_note(f"{done_count} / {n_row}")
        .tab_source_note(
            html(
                create_bar(
                    done_count / n_row,
                    max_width=750,
                    height=20,
                    background_color1="lightgray",
                    background_color2="#66CDAA",
                )
            )
        )
        .tab_header("✅ Django Deployment Checklist")
        .opt_stylize(color="cyan", style=4)
    )
    gt
    return


if __name__ == "__main__":
    app.run()

WarningDisclaimer

1. This table is for demonstration purposes only. You should customize it based on your own needs.
2. This post was drafted by me, with AI assistance to refine the content.