---
title: "Some recent, and not so recent, talks and activities « Robin's Blog"
url: https://daily.dev/posts/some-recent-and-not-so-recent-talks-and-activities-robin-s-blog-gltcj2psd
source_url: https://blog.rtwilson.com/some-recent-and-not-so-recent-talks-and-activities
type: article
source: "Planet Python"
published: 2026-08-22T16:51:39.817Z
updated: 2026-08-22T16:51:59.210Z
tags: ["gis"]
reading_time: 7
upvotes: 0
comments: 0
language: en
---

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# Some recent, and not so recent, talks and activities « Robin's Blog

**[Planet Python](https://daily.dev/sources/planetpython)** · 7 min read · 0 upvotes · 0 comments

## Summary

A personal roundup of recent and past talks and workshops by a geospatial developer, covering a FOSS4G UK 2025 workshop on generating vector tiles live from PostGIS using pg_tileserv, a talk at Electromagnetic Field 2026 about spectrometry and light, and an upcoming FOSS4G UK 2026 talk about converting Environment Agency DEM data into cloud-native STAC/COG formats. Includes links to workshop materials, slides, and code repositories.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.rtwilson.com/some-recent-and-not-so-recent-talks-and-activities>

## Questions this post answers

### How can I serve vector tiles live from a PostGIS database instead of pre-generating them?

Use pg_tileserv, a tool that generates Mapbox Vector Tiles on the fly directly from a PostGIS database. It can serve tiles from database tables directly or from custom PostGIS functions, enabling live geospatial processing as tiles are requested rather than pre-generating and storing many tile sets. It integrates with web maps like MapLibre and with QGIS, and can be run via a simple Docker setup.

_daily.dev surfaces practical PostGIS and vector tile workflows for developers building live map pipelines._

### How do you make Environment Agency LiDAR DEM data easier to work with for flood risk analysis?

Convert the openly-licensed Environment Agency DEM data into Cloud Optimized GeoTIFF (COG) format and build a STAC catalog linking to the COG files. This avoids the original access problems of small-area-only downloads, hundreds of small TIFF files from bulk downloads, and limited web map visualisation options, and the converted dataset can be redistributed freely under the Open Government License.

_developers wrangling large geospatial datasets can track cloud-native formats like COG and STAC on daily.dev._

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---

Tags: [#gis](https://daily.dev/tags/gis)

[View this post on daily.dev](https://daily.dev/posts/some-recent-and-not-so-recent-talks-and-activities-robin-s-blog-gltcj2psd)