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Talking Kotlin · May 15, 2025 · 57 min

Powering TV Broadcasts Worldwide

Sebastian and Márton are joined by Denis Borisevich from RIEDEL Communications, and learn about how Kotlin is used behind-the-scenes to power media, sports, and entertainment broadcasts watched by millions around the globe. Tune in for an exciting story about how Kotlin, Ktor, and Arrow are being used in production for a use case where robust software is mission-critical. Resources: Riedel Communications TornadoFX Unsigned integer types Arrow Ktor Eurovision Hosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky Guest: Denis Borisevich – LinkedIn Timeline: (0:00) Introductions (2:42) Events powered by Riedel (3:50) The Kotlin part (6:44) Routing video signals (9:12) Error handling in milliseconds (10:31) The Kotlin part, continued (13:29) TornadoFX! (19:19) On introducing Compose (23:30) Java to Kotlin migration (26:30) Learning Kotlin after C++ (28:44) Unsigned ints in Kotlin (32:09) Arrow! (33:00) Server-side Kotlin (36:25) Functional programming (42:10) Why Kotlin over others? (45:55) Kotlin/Java interop (47:12) A 2-week long test suite (51:35) Confidence in Kotlin (53:05) Future plans (56:00) Wrap-up

0:00-57:18
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show notes

Sebastian and Márton are joined by Denis Borisevich from RIEDEL Communications, and learn about how Kotlin is used behind-the-scenes to power media, sports, and entertainment broadcasts watched by millions around the globe. Tune in for an exciting story about how Kotlin, Ktor, and Arrow are being used in production for a use case where robust software is mission-critical.

Resources:

Hosts:

Guest:

Timeline:
(0:00) Introductions
(2:42) Events powered by Riedel
(3:50) The Kotlin part
(6:44) Routing video signals
(9:12) Error handling in milliseconds
(10:31) The Kotlin part, continued
(13:29) TornadoFX!
(19:19) On introducing Compose
(23:30) Java to Kotlin migration
(26:30) Learning Kotlin after C++
(28:44) Unsigned ints in Kotlin
(32:09) Arrow!
(33:00) Server-side Kotlin
(36:25) Functional programming
(42:10) Why Kotlin over others?
(45:55) Kotlin/Java interop
(47:12) A 2-week long test suite
(51:35) Confidence in Kotlin
(53:05) Future plans
(56:00) Wrap-up

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