I don't think you should stress yourself out by viewing everything solely from a productivity perspective. I use Linkding and have bookmarks for everything that interests me. I see it more as a personal history or memory that I can refer back to. Linkding has a very good search function for this and can also be integrated into Google or SearxNG search results via a Chrome extension.
[crofflr dev here] The binary used by crofflr will still work and the currently used version is already years old. Alternatively it would be easy to switch to calibre based tooling.
To be fair it should be mentioned that only a first runway and a few improvised buildings were created in this time frame. The Tegel Airport of 1948 ist in no way comparable to a modern airport.
Summary: Memcached provides an external storage shim called extstore, that supports storing of data on SSD (I2) and NVMe (I3). extstore is efficient in terms of cost & storage device utilization without compromising the speed and throughput. All the metadata (key & other metadata) is stored in RAM whereas the actual data is stored on flash.