Fermentation:

Cooling: Immediately cool the wort to around 50°F (10°C) to prepare for pitching the yeast.
Pitching: After aerating the wort thoroughly, pitch the yeast. Using a yeast starter is highly recommended to ensure a strong and healthy fermentation, especially important for lager yeasts.

Pressure Fermentation: Ferment the beer under a pressure of 10-15 psi. This suppresses ester and fusel alcohol production, allowing for a clean fermentation. Pressure fermentation can also permit slightly higher fermentation temperatures, potentially up to 60°F (15.5°C), without sacrificing the clean flavor profile desirable in a Czech Pilsner.

Diacetyl Rest: Towards the end of fermentation, allow the temperature to rise to 60°F (15.5°C) for 48 hours. This helps the yeast metabolize any diacetyl, preventing off-flavors in the final beer.
Lagering: After the diacetyl rest, reduce the temperature to 35°F (1.7°C) and lager for 4-6 weeks. This step is crucial for developing the crisp, clean character of the beer.
Packaging:

Carbonation: Target 2.2-2.5 volumes of CO2 for authentic Czech Pilsner carbonation. This can be achieved through bottle conditioning or forced carbonation in a keg.
Conditioning: After carbonation, the beer benefits from further cold conditioning. Allow it to condition at lagering temperatures for at least two weeks before serving to ensure the flavors have melded and the beer has clarified.

Additional Tips:
Water Chemistry: The soft water profile is key to a Czech Pilsner. Adjust your water chemistry to mimic that of Plzeň, focusing on keeping the mineral content low to highlight the malt and hops.
Decoction Mashing: This traditional method enhances the malt profile and complexity of the beer. It's time-consuming but contributes significantly to the authenticity and depth of flavor in the final product.

Yeast Health: Starting with a healthy yeast culture is vital for clean lager fermentation. A yeast starter will help ensure you have enough viable cells for a clean, vigorous fermentation.
Patience: The lagering phase is essential for achieving the characteristic clean, crisp profile of a Czech Pilsner. Don't rush this step; the longer lagering period will reward you with a clearer, more refined beer.

By following this detailed recipe and process, you should be well on your way to brewing a delicious Czech Pilsner that pays homage to the traditional styles of the Czech Republic. Enjoy the brewing process and the resulting beer!