New minor release after complete rewrite.

Brings neat and testable codebase with minimum allocations in mind.

utils/concurrency/concurrency.go

@@ -0,0 +1,30 @@
+package concurrency
+
+type Pool struct {
+	queue chan struct{}
+	jobs  int
+}
+
+func NewPool(size int) *Pool {
+	if size < 0 {
+		size = 0
+	}
+	return &Pool{
+		jobs:  size,
+		queue: make(chan struct{}, size),
+	}
+}
+
+func (p *Pool) Enqueue(job func(params ...any), params ...any) {
+	if p.jobs == 0 {
+		go job(params...)
+		return
+	}
+	p.queue <- struct{}{}
+	go func() {
+		defer func() {
+			<-p.queue
+		}()
+		job(params...)
+	}()
+}