diff --git a/db/nosql/mongo/features/3 b/db/nosql/mongo/features/3
deleted file mode 100644
index 7bfffafad..000000000
--- a/db/nosql/mongo/features/3
+++ /dev/null
@@ -1,17 +0,0 @@
-coll
-    .find({"field1": "v1", ...}, {f1: 1, f2: 0}) // 2-nd - projection
-        .pretty()
-        .sort({keyfield: 1/-1, ...})
-            https://www.studytonight.com/mongodb/sorting-in-mongodb
-        skip(N).limit(M)
-        https://www.tutorialsteacher.com/mongodb/cursor
-        !!! cursor
-
-
-operators
-    {$gt: 75}
-    { $gte: new ISODate( "2020-01-30" ), $lt: new ISODate( "2022-01-30" ) }
-    field: {"$exists": false}
-
-???
- cur = db.world.find();x=cur.next();print(x["speech"]);
diff --git a/aggregation-projection.txt b/db/nosql/mongo/features/aggregation-projection.txt
similarity index 100%
rename from aggregation-projection.txt
rename to db/nosql/mongo/features/aggregation-projection.txt
diff --git a/multi-ds.txt b/db/nosql/mongo/features/multi-ds.txt
similarity index 100%
rename from multi-ds.txt
rename to db/nosql/mongo/features/multi-ds.txt
diff --git a/queries.txt b/db/nosql/mongo/features/queries.txt
similarity index 100%
rename from queries.txt
rename to db/nosql/mongo/features/queries.txt
diff --git a/index.txt b/index.txt
deleted file mode 100644
index dc5b497d8..000000000
--- a/index.txt
+++ /dev/null
@@ -1 +0,0 @@
-https://www.baeldung.com/spring-data-mongodb-unique
diff --git a/macos.txt b/macos.txt
new file mode 100644
index 000000000..131098e61
--- /dev/null
+++ b/macos.txt
@@ -0,0 +1 @@
+python3 -> /Library/Developer/CommandLineTools/usr/bin/python3*
diff --git a/poems.txt b/poems.txt
deleted file mode 100644
index 2cb1e2d5c..000000000
--- a/poems.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-у тебя в твои лета сила всё ж таки не та
-пожалел бы ты здоровье - ведь тебе уж больше ста
-
-спробуй заячий помёт. он ядрёный, он проймёт! и куда полезней мёда, хоть по вкусу и не мёд
-
-съешь берёзовой коры - и взбодришься до поры
-чай не химия какая, а природные дары
-в ейном соке, гинерал, есть полезный минерал
-от него из генералов ни один не помирал! (с)
diff --git a/reports.txt b/reports.txt
deleted file mode 100644
index 9b716df66..000000000
--- a/reports.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-victory ideology
-    https://izborsk-club.ru/21816
-    http://averianov.net/doc/846/?h=1014
-    https://день-магазин.рф/32948-vyzov-globalnoy-antisistemy-averyanov-vv
diff --git a/samples.txt b/samples.txt
deleted file mode 100644
index ca1333610..000000000
--- a/samples.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-https://github.com/tweag/nickel/tree/master/examples
-https://github.com/tweag/nickel/blob/master/examples/record-contract/record-contract.ncl