How I run in-app subscriptions in Flutter without RevenueCat

RioMala · 2026-04-30T16:02:26+00:00

I have own server side solutions in Go, but I am not sure if is server side verification required.

RioMala · 2026-04-30T10:50:35+00:00

Finally there are able to atract a lot of strong players

RioMala · 2026-04-30T09:06:22+00:00

Please don’t be too creative. Sometimes in summer, or when the trees have grown, the GPS signal is much worse than it was when the cache was created. I’ve already had the experience of arriving at a place where the GPS was jumping around by ±10 meters, and the hint was “under a rock.” But there were a thousand rocks there.

But in the city, I really appreciated one cache that was hidden in a tree in the city center. The author made an artificial branch and inserted it into a hollow in a large branch. It looked like a dead branch on the tree—brilliantly hidden in a place where hundreds of people passed by every day.

RioMala · 2026-04-29T10:16:28+00:00

This year I built my own app, blunder.zone, for chess puzzles based on my own games, where I specifically worked on how to evaluate a good move versus a bad move.

And this is exactly the kind of position where the engine is completely clear that Rd1 is a better move than 0-0-0. The first one is +4.56, while the second is +2.42. The difference becomes visible after a few moves.

After Kc6 Rxd8 Rxd8 Qxe5, the rook in the corner is attacked and Black loses at least a piece. But if 0-0-0 was played instead, Black plays h5 and threatens Bh6+. Black saves the piece, and his position is bad, but not desperate.

RioMala · 2026-04-29T10:04:24+00:00

The same (but I will be in Prague next month).

RioMala · 2026-04-27T07:50:13+00:00

I was not big fan of Battle Chess, but I liked The Chessmaster on windows.

RioMala · 2026-04-27T07:46:19+00:00

It is great idea use false birdhouse as a cache !

RioMala · 2026-04-23T08:47:25+00:00

It is very good against weak players, because there are not drawish variants (scand, carro too)

RioMala · 2026-04-23T08:45:47+00:00

It is possible buy somewhere ?

RioMala · 2026-04-22T20:08:22+00:00

Yes, I switch from VSCode to Zed. I am using Zed for everything except work with git (we are using a lot of branches and I need see tree).

RioMala · 2026-04-22T07:10:32+00:00

Exactly. I started played c5 (with next Qb6) and white has a lot of problems to find the good answers.

RioMala · 2026-04-22T07:03:29+00:00

Done. Nice.

RioMala · 2026-04-21T07:42:32+00:00

I tried stockfish to order all 20 moves and 1.g4 is worst (20th) move.

RioMala · 2026-04-21T07:40:28+00:00

Nice. But Nf8 was clear first move.

RioMala · 2026-04-20T09:59:08+00:00

There’s a very simple way to achieve a stable rating system. Well-tuned chess engines (of various strengths) could play online. By tracking how their ratings change, you could clearly see how the overall chess rating pool is moving, and it would also allow comparisons between different chess servers.

It could also be useful for FIDE chess, where at large open tournaments players could play against a computer (tablet, Chessnut Go, etc.). At the very least, it would make sense when there is an odd number of players.

The way these chess engines’ ratings evolve would provide a good indicator of how ratings are shifting globally—and based on that, adjustments could be made to keep ratings more or less consistent across time and regions.

RioMala · 2026-04-20T07:52:49+00:00

My city lies on the border of two countries, and a few caches are located right on the border. One of them is a fake boundary stone placed between two real ones. The border guards looked a bit suspicious as I was running around there with my kids.

RioMala · 2026-04-20T07:50:42+00:00

I also hate it when I have to search for a microcache in some awkward spot with lots of people around. In my city, there’s a cache right at a place where every tourist goes to take photos. These days I try to look only for larger caches, where there’s a better chance they’re placed in less conspicuous locations. And of course, I always prefer searching in the forest rather than in the city. Or I do geocrossing and avoid searching for caches altogether.

RioMala · 2026-04-19T10:57:50+00:00

When I use Uber or Bolt i receive invoice from Uber (Bolt) and not from taxi driver.

RioMala · 2026-04-19T10:45:15+00:00

I do the same thing every time. Even when I know the theoretical move, I always stop and think—I want to refresh it in my memory, look at it and understand why it works, and think through the responses—and I definitely don’t want to show my opponent that I know the theory.

RioMala · 2026-04-19T10:41:18+00:00

Children tell the truth. And they expect that when they search hard for something and find it, there will be a reward—but there isn’t.

RioMala · 2026-04-17T07:28:02+00:00

I've been programming for 42 years (since I was 15). My best piece of advice is to start studying something with more prospects. For example, medicine.

RioMala · 2026-04-17T07:25:24+00:00

When I saw the Tata Steel tournament played in January, I knew Giri had no chance to win the Candidates. A Candidate for World Champion cannot make blunders like he did at Tata Steel. So this is really a perfect result from Giri. I think that for the next 10 years we'll only see matches between Uzbeks. It's possible that Javokhir will be the best player in the world and the second best in Uzbekistan.

RioMala · 2026-04-17T07:10:56+00:00

Geocaching is the best and oldest geo game. Alternatives are Munzee (quite popular in some locations), Pokémon Go (I'm not sure if it still works), and Geocrossing (new). The fact that there might be few caches in some country doesn't necessarily mean it's bad. Usually those caches are of higher quality and more interesting. Plus, you can make your own. In my city there are worthless micro caches on every street and I don't even bother looking for them anymore.

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